insertion device for the treatment of glaucoma

专利摘要:
INTRA-OCULAR SHUNT INSERTION DEVICE. The present invention relates to an inserter for the treatment of glaucoma which may comprise a housing, a needle, a plunger, a sliding component and a conductive component. The conductive member is disposed within a cavity of the housing and can be rotated within the cavity to result in movement along a longitudinal axis of the insertion device for the needle and plunger upon rotation of the conductive member. The slide member is coupled to the housing and can slide along an elongated groove of the conductive member such that movement of the slide member along the axis rotates the conductive member within the housing.
公开号:BR112016010768B1
申请号:R112016010768-3
申请日:2014-11-13
公开日:2021-05-11
发明作者:Christopher Horvath；Laszlo O. Romoda；Iqbal K. Ahmed；Brian Scott Hamstrom；Wesley Anne Jung；Vanessa I. Vera；Ronald D. Bache
申请人:AqueSys, Inc；
IPC主号:

专利说明:

CROSS REFERENCE TO RELATED ORDERS
[001] This application claims the benefit of US Provisional Application No. 61/904,429, filed November 14, 2013, the entirety of which is incorporated herein by reference. BACKGROUND FIELD OF INVENTIONS
[002] The present invention generally relates to devices and methods of implanting an intraocular shunt in an eye. Description of Related Art
[003] Glaucoma is a disease in which the optic nerve is damaged, leading to progressive and irreversible loss of vision. It is usually associated with increased fluid pressure (ie, aqueous humor) in the eye. Untreated glaucoma leads to permanent optic nerve damage and resulting visual field loss, which can progress to blindness. Once lost, this damaged visual field cannot be recovered. Glaucoma is the second leading cause of blindness in the world, affecting 1 in 200 people under the age of fifty, and 1 in 10 over the age of eighty for a total of approximately 70 million people worldwide.
[004] The importance of lowering intraocular pressure (IOP) in slowing glaucomatous progression has been well documented. When drug treatment fails or is not tolerated, surgical intervention is warranted. Surgical filtration methods for reducing intraocular pressure by creating a fluid flow path between the anterior chamber and an area of low pressure have been described. Intraocular shunts can be positioned in the eye to drain fluid from the anterior chamber to locations such as the sub-Tenon space, subconjunctival space, episcleral vein, suprachoroidal space, Schlemm's canal, and intrascleral space.
[005] Placement of an intraocular shunt to drain fluid into the intrascleral space is promising because it avoids contact with the conjunctiva and the suprachoroidal space. Avoiding contact with the conjunctiva and suprachoroids is important as it reduces irritation, inflammation and tissue reaction that can lead to fibrosis and reduce the potential for exit from the suprachoroidal and subconjunctival space. The conjunctiva itself plays a critical role in glaucoma filtration surgery. Less irritated and healthy conjunctiva allows drainage channels to form and less opportunity for inflammation and scar tissue to form. Intrascleral shunt placement protects conjunctival and choroidal integrity, but may provide only limited outflow pathways that can affect long-term decreased IOP efficacy. SUMMARY
[006] Under some embodiments, methods and devices are provided to position an intraocular shunt within the eye to treat glaucoma. Various methods are disclosed herein that allow an operator to access a variety of locations within the eye, including the subconjunctival space, the intrascleral space, the supraciliary space, the suprachoroidal space, and intraTenon space adhesion.
[007] For example, a method of treating glaucoma is disclosed which may comprise inserting an intraocular shunt into eye tissue such that an inflowing end of the shunt is positioned in the anterior chamber of the eye and an outflowing end of the eye. shunt is positioned between Tenon's capsule layers.
[008] According to some modalities, the shunt can be introduced into the eye through the cornea. After the shunt is introduced through the cornea, the shunt can be advanced into the sclera. For example, the shunt can be advanced into the sclera through anterior chamber angle tissue.
[009] The object technology is illustrated, for example, according to several aspects described below. Several examples of aspects of the subject technology are described as numbered modalities (1, 2, 3, etc.) for convenience. These are provided as examples and are not limited to object technology. Note that any of the dependent modalities can be combined in any combination, and placed in a respective independent modality, for example modality 1 or modality 5. The other modalities can be presented in a similar way.
[0010] Modality 1. An inserter for the treatment of glaucoma, comprising: a housing having a distal portion, a proximal portion, a longitudinal axis extending between the distal and proximal portions, an interior cavity, and an elongated groove extending along an outer surface of the housing into the cavity; a needle, having a lumen, movably coupled to the distal portion along the axis; a plunger, disposed within the lumen, movable along the axis to result in an axial force on a shunt to propel the shunt distally with respect to the needle; and a sliding member coupled to the housing and slidable along the elongated slot, the sliding member engaged with the conductive member such that distal movement of the sliding member along the axis results in both (1) distal movement of the plunger. along the axis and (2) after the distal movement of the plunger, the proximal movement of the needle along the axis.
[0011] Modality 2. The inserter of modality 1, further comprising a conductive component disposed within the cavity, the conductive component configured to (1) rotate within the cavity with distal movement of the sliding component and (2) result in movement for the needle and plunger along the axis.
[0012] Modality 3. The inserter of any of the foregoing embodiments, wherein the slot comprises a first and second section, and wherein distal movement of the sliding member along the axis in the first section results in distal movement of the plunger along the axis, and wherein distal movement of the sliding member in the second section results in proximal movement of the needle along the axis.
[0013] Modality 4. The inserter of modality 3, wherein distal movement of the sliding member in the first section results in distal movement of the plunger while the needle remains substantially axially fixed relative to the housing, and wherein distal movement of the sliding member in the second section results in proximal movement of the needle, while the plunger remains substantially stationary axially with respect to the housing.
[0014] Modality 5. The inserter of any of the foregoing modes, wherein the slot extends substantially parallel to the axis.
[0015] Modality 6. The inserter of any of the above embodiments, wherein the slot has a length of less than 5 inches.
[0016] Modality 7. The inserter of any of the foregoing embodiments, wherein the groove is linear and extends substantially parallel to a longitudinal axis of the housing.
[0017] Modality 8. An inserter for the treatment of glaucoma, comprising: a housing having a longitudinal axis and an elongated groove extending in substantially parallel relation to the axis along a length of less than 5 inches; a needle, which has a lumen, movably coupled to the housing; a plunger, arranged inside the lumen, movably coupled to the housing; and a sliding member coupled to the needle and the plunger and slidable along the slot to result in both (1) distal movement of the plunger along the axis with respect to the housing and (2) proximal movement of the needle along the shaft in relation to the housing.
[0018] Modality 9. The inserter of modality 8, wherein the sliding member results in proximal movement of the needle relative to the housing upon completion of distal movement of the plunger relative to the housing.
[0019] Modality 10. The inserter of any of the modes 8 and 9, wherein the slot length is less than 4 inches.
[0020] Modality 11. The inserter of any of the modes 8 through 10, wherein the slot length is less than 3 inches.
[0021] Modality 12. The inserter of any of the modes 8 through 11, wherein the slot length is less than 2 inches.
[0022] Modality 13. The inserter of any of the modes 8 through 12, wherein the slot length is less than 1 inch.
[0023] Modality 14. The inserter of any of the modes 8 to 13, further comprising a conductive component, disposed within an interior cavity of the housing, engaged with the needle and plunger in such a way that when rotating the conductive component , engagement results in a force distal to the plunger and a force proximal to the needle upon movement of the slide member along the axis.
[0024] Modality 15. The inserter of modality 14, wherein a longitudinal length of the conductive member is greater than a length of the slot.
[0025] Modality 16. The inserter of any of the embodiments 14 to 15, wherein the conductive component comprises a first housing engaged with the needle, a second slot engaged with the plunger, and a third slot engaged with the sliding component.
[0026] Modality 17. The insert of modality 16, wherein the first, second, and third slots each comprise a helical portion.
[0027] Modality 18. The inserter of any of the embodiments 8 to 17, further comprising a gripping portion protruding from an outer surface of the housing configured to support an axial force directed against a direction of travel of the sliding member.
[0028] Modality 19. An inserter for the treatment of glaucoma, comprising: a needle having a lumen; a plunger, movable within the lumen; a conductive component coupled to the needle and plunger to cause movement for the needle and plunger along a longitudinal axis of the inserter upon rotation of the conductive component; and a slide member coupled to the housing and slidable along an elongated groove, such that movement of the slide member along the axis rotates the conductive member within the housing and results in movement of the needle and plunger along of the axis.
[0029] Modality 20. The insert of the modality 19, wherein the conductive component comprises a cylindrical element.
[0030] Modality 21. The inserter of any of the modes 19 to 20, wherein the conductive component comprises a hollow cylindrical element.
[0031] Modality 22. The inserter of any of the embodiments 19 to 21, wherein the conductive component comprises a plurality of slots.
[0032] Modality 23. Inserter according to embodiments 19 to 22, wherein the conductive component comprises a cylindrical element having a sliding groove configured to engage with the sliding component such that, upon movement of the sliding component, the engagement results in a rotational movement in the conducting component.
[0033] Modality 24. Inserter according to any of embodiments 19 to 23, wherein the conductive component comprises a cylindrical element having a groove in the piston configured to engage with the piston so that upon rotation of the component conductive, the engagement results in movement for the piston along the axis in response to a rotational movement of the conductive component.
[0034] Modality 25. Inserter according to any of embodiments 19 to 24, wherein the conductive component comprises a cylindrical element having a groove in the needle configured to engage with the needle such that upon rotation of the component conductive, engagement results in movement for the needle along the axis in response to a rotational movement of the conductive component.
[0035] Modality 26. The inserter of any of the modes 19 to 25, further comprising a housing having an interior cavity, wherein the conductive component is supported within the cavity.
[0036] Modality 27. Inserter, according to according to modality 26, wherein the housing comprises an elongated groove extending from an outer surface of the housing into the cavity, the sliding member being able to slide along the crack.
[0037] Modality 28. The inserter of any of the embodiments 26 to 27, wherein the housing has a distal portion and a sleeve extending from the distal portion, the sleeve comprises a lumen into which the needle extends.
[0038] Modality 29. The inserter of any of the embodiments 26 to 28, wherein the housing further comprises a sleeve coupled to the distal portion, the sleeve having an abutment portion to abut the eye tissue to resist or prevent further movement of the device when in contact with eye tissue.
[0039] Modality 30. Inserter according to any of embodiments 26 to 29, further comprising a locking member configured to engage an external housing structure to restrict movement of the sliding member within the housing slot .
[0040] Modality 31. The inserter of any of the embodiments 26 to 30, further comprising a locking member extending at least partially through the housing groove and configured to engage an outer structure of the conductive member to restrict rotational movement of the conductive component inside the housing.
[0041] Modality 32. Inserter according to any of embodiments 26 to 31, further comprising a puller component coupled to a proximal end of the housing, the puller component being rotatably coupled to the conductive component such that rotation of the pull component results in a rotational movement for the lead component.
[0042] Modality 33. The inserter of any of the embodiments 19 to 32, further comprising a needle assembly, the needle assembly comprising a needle conductor, which is slidably engaged in a groove of the needle conductor in such a way that rotation of the lead member results in movement for the needle lead along the axis, wherein the needle is coupled to the needle lead such that movement of the needle lead along the axis results in movement of the needle along the axis.
[0043] Modality 34. The inserter of any of the embodiments 19 to 33, wherein the needle is coupled to a rotational adjustment component, the adjustment component being rotatable to correct rotational alignment of the needle with respect to the housing.
[0044] Modality 35. Inserter of any of the modes 19 to 34, wherein the needle is coupled to a rotational adjustment component, the adjustment component being coupled to a needle conductor of a needle assembly, the adjustment component being rotatable with respect to the needle conductor such that rotation of the adjustment member alters a rotational alignment of the needle with respect to the housing, wherein the adjustment member is rotatable to correct the rotational alignment of the needle with respect to the housing.
[0045] Modality 36. The inserter of any of the embodiments 19 to 35, further comprising a plunger assembly, the plunger assembly comprising a plunger driver which is slidably engaged in a plunger groove of the conductive member such that rotation of the lead component results in movement for the plunger driver along the axis, wherein the plunger is coupled to the plunger driver such that movement of the plunger driver along the axis results in movement of the plunger along the axle.
[0046] Modality 37. An inserter for the treatment of glaucoma, comprising: a housing having a distal portion and a longitudinal axis; a needle assembly, connected to the distal portion of the housing, comprising a rotational adjustment member and a needle coupled to the adjustment device, the adjustment member being rotatable to adjust rotational alignment of the needle with respect to the housing; and a plunger movable within the lumen to result in an axial force on a shunt disposed within the lumen to propel the shunt distally with respect to the needle.
[0047] Modality 38. The insert of modality 37, wherein the adjustment component is coupled to a needle conductor of a needle assembly, the adjustment component being rotatable with respect to the needle conductor, such that the rotation of the component The adjustment of adjustment changes from a rotational alignment of the needle relative to the housing, the needle conductor configured to cause an axial force on the adjustment component that is transferred to the needle.
[0048] Modality 39. The inserter of any of the embodiments 37 to 38, wherein the adjustment member comprises a pin extending radially from the needle assembly, the pin being actuable to adjust the rotational alignment of the needle with respect to the accommodation.
[0049] Modality 40. The inserter of any of the embodiments 37 to 39, wherein the housing comprises an alignment slit and the adjustment member comprises a pin extending radially from the needle assembly through the alignment slit.
[0050] Modality 41. The inserter of any of the embodiments 37 to 40, wherein the housing comprises an alignment slit having a circumferential portion, the adjustment member comprising a pin extending radially from the needle assembly through the alignment slot, the pin being movable within the circumferential portion to adjust rotational alignment of the needle.
[0051] Modality 42. The inserter of any of the embodiments 37 to 41, wherein the housing comprises an alignment slot having a peripheral portion and at least one longitudinal portion, the adjustment component comprising a pin extending radially from of the needle assembly through the alignment slit, the pin being movable within the circumferential portion to adjust rotational alignment of the needle, the pin still being movable within at least one longitudinal portion upon movement of the needle along the axis.
[0052] Modality 43. The inserter of any of the embodiments 37 to 42, wherein the housing comprises an alignment slot having a peripheral portion, and at least three longitudinal portions, the adjustment component comprising a pin extending radially the from the needle assembly through the alignment slit, the pin being movable within the circumferential portion to adjust the rotational alignment of the needle, the pin still being movable within one of the at least three longitudinal portions with the movement of the needle along the axis .
[0053] Modality 44. An inserter of any of the modes 37 to 43, further comprising any of the features listed in modes 1 to 35.
[0054] Modality 45. Conductive component for actuating an inserter for the treatment of glaucoma, the conductive component comprising a cylindrical body having a first, second and third elongated bands extending throughout the body, wherein the first elongated band extends helically from a proximal portion toward a distal portion of the body, the second elongated strip having (1) a first portion, which extends helically around the body, and (2) a second portion, which extends circumferentially around the body, the third elongated band having (i) a first portion, which extends circumferentially around the body, and (ii) a second portion, which extends helically around the body.
[0055] Modality 46. The modality component 45, wherein the first, second, and third bands each comprise a slot.
[0056] Modality 47. The component of any of the embodiments 45 to 46, wherein the second portion of the second elongated strip extends within a plane oriented substantially perpendicular to a longitudinal axis of the body.
[0057] Modality 48. The component of any of the embodiments 45 to 47, wherein the first portion of the first elongated strip extends within a plane oriented substantially perpendicular to a longitudinal axis of the body.
[0058] Modality 49. The component of any of the embodiments 45 to 48, wherein the first portion of the second elongated strip extends helically from the second portion of the second elongated strip in a direction toward the proximal portion of the body.
[0059] Modality 50. The component of any of the embodiments 45 to 49, wherein the second portion of the third elongated strip extends helically from the first portion of the third elongated strip in a direction toward the proximal portion of the body.
[0060] Modality 51. The component of any of embodiments 45 to 50, wherein the body comprises an inner lumen and the second and third bands extend along an inner surface of the inner lumen.
[0061] Modality 52. The component of any of the embodiments 45 to 51, wherein the body comprises an inner lumen and the second and third bands comprise slits extending from an inner surface of the inner lumen to an outer surface of the body .
[0062] Modality 53. The component of any of the embodiments 45 to 52, wherein the body comprises two pieces, the pieces to be coupled together.
[0063] Modality 54. The component of any claim 45 to 53, wherein the body comprises two pieces, attachable together, wherein at least one of the first, second or third strip extends along both pieces.
[0064] Modality 55. The component of any of the embodiments 45 to 54, wherein the body comprises two pieces, attachable together, wherein the first band extends helically along both pieces.
[0065] Modality 56. The component of any of the embodiments 45 to 55, wherein the body comprises two pieces, attachable together, wherein the second strip extends helically along both pieces.
[0066] Modality 57. The component of any of the embodiments 45 to 56, wherein the body comprises two pieces, attachable together, wherein the third band extends helically along both pieces.
[0067] Modality 58. The component of any of the modalities 45 to 57, wherein the first band extends helically along a substantially half rotation of the body.
[0068] Modality 59. The component of any of modalities 45 to 58, wherein the second band extends helically along a substantially half rotation of the body.
[0069] Modality 60. The component of any of the embodiments 45 to 59, wherein the third band extends helically along a substantially half rotation of the body.
[0070] Modality 61. The component of any of the modes 45 to 60, wherein the body is hollow.
[0071] Modality 62. The conductive component of modes 45 and 61, used in an inserter device having a housing, a needle, a plunger, and a sliding component coupled to the housing and sliding along it, the sliding component being engaged with the conductive member such that movement of the sliding member along a longitudinal axis of the inserter device rotates the conductive member within the housing to move at least one of the needle or plunger along the axis.
[0072] Modality 63. A method of manufacturing the component of modality 45, the body comprising first, second, and third bands, wherein the body comprises two parts that are mateable together and the first band extends helically along of both pieces, the method comprising forming a first of the two pieces with a first portion of the first band and forming a second of the two pieces with a second portion of the first band, the first and second portions of the first band being alignable to assemble the first strip when the first and second pieces are coupled together.
[0073] Modality 64. The method of modality 63, further comprising forming any of the characteristic features referred to in any of embodiments 45 to 60 on the body.
[0074] Modality 65. A shunt retention device, comprising: an elongated tubular body having first and second portions, the first portion having an inclination such that the first portion can be inserted into a lumen of a needle to provide a precision snap fit to the needle lumen, the second portion being graspable by an operator to facilitate insertion or withdrawal of the first portion relative to that of the needle lumen.
[0075] Mode 66. The device of mode 65, wherein the second part comprises a bulbous end.
[0076] Modality 67. The device of any of the embodiments 65 to 66, wherein the body comprises a steel material.
Modality 68. An inserter for the treatment of glaucoma, comprising: a housing having a distal portion, an outer surface, and an elongated groove extending along the outer surface; a needle, which has a lumen, coupled to the distal portion of the housing; a plunger, disposed within the lumen, movable to exert an axial force on a shunt to propel the shunt distally with respect to the needle; a sliding member coupled to the housing and slidable along the elongated slot, the sliding member configured to cause an axial force on at least one of the plunger or needle; and a footprint section disposed proximally to the sliding member, the footprint section having first and second portions, the first portion extending radially outwardly to provide resistance against distal movement of an operator's hand relative to the housing. and the second portion extends radially outwardly to provide resistance against proximal movement of an operator's hand relative to the housing.
[0078] Modality 69. The insert of modality 68, wherein the footprint section comprises a saddle shape, wherein the first and second portions extend on opposite sides of the saddle.
[0079] Modality 70. The inserter of any of the modes 68 to 69, characterized in that the footprint section extends circumferentially around the housing.
[0080] Modality 71. The inserter of any of the embodiments 68 to 70, wherein the footprint section comprises a trough portion disposed between the first and second portions, the trough portion comprising an internal diameter, the first and second portions comprising a maximum outside diameter, the maximum outside diameter being between about 1.5 and about 5 times larger than the inside diameter.
[0081] Modality 72. The inserter of any of the modes 68 to 71, wherein the footprint section comprises a trough portion disposed between the first and second portions, the trough portion comprising an inner diameter, the first and second portions comprising a maximum outside diameter, the maximum outside diameter being between about 2 and about 4 times larger than the inside diameter.
[0082] Modality 73. The inserter of any of the modes 68 to 72, wherein the footprint section comprises a trough portion disposed between the first and second portions, the trough portion comprising an internal diameter, the first and second portions comprising a maximum outside diameter, the maximum outside diameter being between about 2.5 and about 3 times larger than the inside diameter.
[0083] Modality 74. The inserter of any of the modes 68 to 73, wherein the footprint section comprises a trough portion disposed between the first and second portions, the trough portion comprising an inside diameter, the first portion comprising a first outside diameter and the second portion comprising a second outside diameter, the first and second outside diameters being between greater than the inside diameter, the first outside diameter being smaller than the second outside diameter.
[0084] Modality 75. The inserter of any of the embodiments 1 to 44, further comprising a footprint section disposed proximally to the sliding member, the footprint section having a first and second portion, wherein the first portion extends radially outwardly to provide resistance against distal movement of an operator's hand relative to the housing when operating the inserter, and the second portion extending radially outwardly to provide resistance against proximal movement of an operator's hand relative to the housing, when operating the insertion device.
[0085] Modality 76. The insert of modality 1 to 44 or 75, wherein the footprint section comprises a saddle shape.
[0086] Modality 77. The inserter of any of the modes 1 to 43 and 73 to 75, characterized in that the footprint section extends circumferentially around the housing.
[0087] Modality 78. The inserter of any of the modes 1 to 43 or 73 to 75, wherein the footprint section comprises a valley portion disposed between the first and second portions, the valley portion comprising an inner diameter, the first and second portions comprising a maximum outside diameter, the maximum outside diameter being between about 1.5 and about 5 times larger than the inside diameter.
[0088] Modality 79. The inserter of any of the modes 1 to 43 or 73 to 75, wherein the footprint section comprises a valley portion disposed between the first and second portions, the valley portion comprising an inner diameter, the first and second portions comprising a maximum outside diameter, the maximum outside diameter being between about 2 and about 4 times larger than the inside diameter.
[0089] Modality 80. The inserter of any of the modes 1 to 43 or 73 to 75, wherein the footprint section comprises a valley portion disposed between the first and second portions, the valley portion comprising an inner diameter, the first and second portions comprising a maximum outside diameter, the maximum outside diameter being between about 2.5 and about 3 times larger than the inside diameter.
[0090] Modality 81. The inserter of any of the modes 1 to 43 or 73 to 80, wherein the footprint section comprises a valley portion disposed between the first and second portions, the valley portion comprising an inside diameter, the first portion comprising a first outside diameter and the second portion comprising a second outside diameter, the first and second outside diameters being between greater than the inside diameter, the first outside diameter being smaller than the second outside diameter.
[0091] Modality 82. An inserter comprising any of the characteristic features recited in any of modality 1 to 43.
[0092] Modality 83. A method of treating an eye, comprising: introducing a needle into the eye through a cornea of the eye; advancing a needle bevel to an intermediate position of a surface layer and a deep layer; and rotating the bezel to create a space between the top layer and the deep layer.
[0093] Modality 84. The method of modality 83, wherein advancing comprises advancing the bevel such that a plane of the bevel is substantially parallel with respect to a surface of the surface layer.
[0094] Modality 85. The method of any of embodiments 83 to 84, wherein the rotation comprises rotating the bezel of a first configuration wherein the bevel is substantially coplanar with an interface of the surface layer and the bottom layer to a second configuration in which the bezel extends transversely to the interface.
[0095] Modality 86. The method of modality 85, wherein in the second configuration, the bevel extends substantially perpendicular to the interface.
Modality 87. The method of any of embodiments 83 to 86, wherein advancing the bevel comprises passing through the sclera until exiting the sclera.
[0097] Modality 88. The method of any of modalities 83 to 87, wherein the surface layer comprises the conjunctiva.
[0098] Modality 89. The method of any of embodiments 83 to 88, wherein the surface layer comprises intra-Tenon adhesion layer.
[0099] Modality 90. The method of any of embodiments 83 to 89, wherein the deep layer comprises sclera.
[00100] Modality 91. The method of any of embodiments 83 to 90, wherein the deep layer comprises intra-Tenon adhesion layer.
[00101] Modality 92. The method of any of the modes 83 to 91, wherein the superficial and deep layers comprise sclera.
[00102] Modality 93. A method of treating an eye, comprising: introducing a needle into the eye through a cornea of the eye; advancing a needle bevel to an intermediate position of a surface layer and a deep layer; and injecting a fluid from the bevel to create a space between the surface layer and the deep layer.
[00103] Modality 94. The method of modality 93, wherein advancing comprises advancing the bevel such that a plane of the bevel is substantially parallel with respect to a surface of the surface layer.
[00104] Modality 95. The method of any of embodiments 93 to 94, wherein the fluid comprises a balanced salt solution.
[00105] Modality 96. The method of any of the modes 93 to 95, wherein the surface layer comprises the conjunctiva.
[00106] Modality 97. The method of any of embodiments 93 to 95, wherein the surface layer comprises intra-Tenon adhesion layer.
[00107] Modality 98. The method of any of embodiments 93 to 97, wherein the deep layer comprises sclera.
[00108] Modality 99. The method of any of embodiments 93 to 95 or 97, wherein the deep layer comprises intra-Tenon adhesion layer.
[00109] Modality 100. The method of any of embodiments 93 to 95, wherein the surface and deep layers comprise surface and deep layers of the intraTenon adhesion layer.
[00110] Additional features and advantages of the subject technology will be defined in the following description, and in part will be apparent from the description or may be learned by practicing the present subject technology. The advantages of the subject technology will be perceived and achieved by the structure particularly pointed out in the written report and its modalities, as well as in the attached drawings.
[00111] It is to be understood that both the above general description and the following detailed description are exemplary and explanatory and are intended to provide a further explanation of the subject technology. BRIEF DESCRIPTION OF THE DRAWINGS
[00112] Various features of illustrative embodiments of the invention are described below with reference to the drawings. The illustrated embodiments are intended to illustrate, but not limit, the inventions. The drawings contain the following figures:
[00113] Figure 1A is a schematic view of a process for implanting an intraocular shunt in an eye using an insertion device, according to some modalities.
[00114] Figure 1B is a perspective view of an inserter for implanting an intraocular shunt in an eye, according to some modalities.
[00115] Figure 2 is an exploded perspective view of the inserter shown in Figure 1B, according to some embodiments.
[00116] Figure 3 is an exploded perspective view of a lead assembly of the inserter shown in Figure 1B, according to some embodiments.
[00117] Figures 4A-4B are perspective views of a conductor component of the conductor assembly shown in Figure 3, according to some embodiments.
[00118] Figures 5A-5B are perspective views of a piston conductor of the conductor assembly shown in Figure 3, according to some embodiments.
[00119] Figures 6A-6B are perspective views of a needle conductor of the conductor assembly shown in Figure 3, according to some embodiments.
[00120] Figure 7 is a perspective view of a needle assembly of the conductor assembly shown in Figure 3, according to some embodiments.
[00121] Figures 8A-8B are perspective views of a rotational adjustment component of the conductor assembly shown in Figure 3, according to some embodiments.
[00122] Figure 9A is a perspective view of a sleeve assembly of the conductor assembly shown in Figure 3, which has a needle component directly coupled thereto, according to some embodiments.
[00123] Figure 9B is a perspective view of a sleeve assembly of the conductor assembly shown in Figure 3, which has a curved needle component coupled thereto, according to some embodiments.
[00124] Figure 10 is a perspective view of a cap component for use with an inserter, according to some embodiments.
[00125] Figure 11 is a schematic view of an outer surface of the conductive component, illustrating groove paths, according to some embodiments.
[00126] Figures 12A-12B are perspective views of a sliding component of the inserter shown in Figure 1B, according to some embodiments.
[00127] Figures 13A-13B are perspective views of an inserter housing shown in Figure 1B, according to some embodiments.
[00128] Figures 14A-14E are side cross-sectional views of the inserter shown in Figure 1B, which illustrates the phases of movement of the conductor assembly, according to some embodiments.
[00129] Figures 15A-15E are perspective views of the conductor assembly represented in Figure 3, which illustrates the phases of movement of the conductor assembly, according to some modalities.
[00130] Figures 16A-16E are perspective views of the phases of movement of a needle and sleeve of the conductor assembly illustrated in Figures 15A-15E, according to some embodiments.
[00131] Figure 17 is a cross-sectional side view of a rotational adjustment mechanism of the inserter shown in Figure 1B, according to some embodiments.
[00132] Figure 18 is a top view of the rotational adjustment mechanism shown in Figure 17, according to some embodiments.
[00133] Figures 19A-19C illustrate rotational alignment positions of the needle in response to movement of the rotational adjustment mechanism, according to some embodiments.
[00134] Figure 20 is a perspective view of another insertion device, according to some embodiments.
[00135] Figure 21 is an exploded perspective view of a lead assembly of the inserter shown in Figure 20, according to some embodiments.
[00136] Figure 22 is a cross-sectional side view of the inserter shown in Figure 20, according to some embodiments.
[00137] Figures 23A-23B are perspective views of a needle conductor of the inserter shown in figure 20, according to some embodiments.
[00138] Figure 24 is a perspective view of another insertion device, according to some embodiments.
[00139] Figure 25 is an exploded perspective view of the inserter shown in Figure 24, according to some embodiments.
[00140] Figures 26A-26B are cross-sectional side views of the inserter of figure 24, illustrating the phases of movement of a respective conductor assembly, according to some embodiments.
[00141] Figures 27A-27B are cross-sectional side views of a needle, sleeve, and plunger of the inserter of Figure 24, illustrating the phases of movement corresponding to the ocean illustrated in Figures 26A-26B, according to some embodiments.
[00142] Figures 28A-28B are perspective views of first and second halves of an inserter housing shown in figure 24, according to some embodiments.
[00143] Figure 29 is a perspective, cross-sectional view of the inserter of figure 24, according to some embodiments.
[00144] Figures 30A-30B are top and perspective views of yet another insertion device, illustrating the phases of movement of the loop component thereof, according to some embodiments.
[00145] Figure 31 is a perspective view of yet another insertion device, which illustrates a conductor assembly for the conductor assembly, according to some embodiments.
[00146] Figures 32A-32C are side cross-sectional views of spring loaded, button-actuated conductor assemblies for an inserter, according to some embodiments.
[00147] Figure 33 is a cross-sectional side view of an implant retaining device received within a needle lumen of an inserter, according to some embodiments.
[00148] Figures 34A-34C are schematic views of a process for implanting an intraocular shunt, according to some modalities.
[00149] Figures 35A-35C are schematic views of another procedure for the implantation of an intraocular shunt, according to some modalities.
[00150] Figures 36A-36C are schematic views of yet another procedure for implanting an intraocular shunt, according to some modalities.
[00151] Figures 37-39 are schematic views of a preparation process for intraocular implantation of a shunt, according to some modalities. DETAILED DESCRIPTION
[00152] In the following detailed description, several specific details are established in order to provide a complete understanding of the subject technology. However, it is understood that object technology can be practiced without these specific details. In other cases, well-known structures and techniques have not been shown in detail so as not to obscure the subject technology.
[00153] Furthermore, while this specification defines specific details of various embodiments, it will be understood that the description is illustrative only and should not be construed as limiting in any way. Furthermore, it is contemplated that while particular modalities may be disclosed or shown in the context of ab interno processes, such modalities may be used in ab external procedures. Furthermore, various applications of such modalities and modifications, which may occur to those skilled in the art, are also encompassed by the general concepts described herein.
[00154] Glaucoma is a disease in which the optic nerve is damaged, leading to progressive and irreversible loss of vision. It is usually associated with increased fluid pressure (ie, aqueous humor) in the eye. Untreated glaucoma leads to permanent optic nerve damage and resulting visual field loss, which can progress to blindness. Once lost, this damaged visual field cannot be recovered.
[00155] In glaucoma conditions, the aqueous humor pressure in the eye (anterior chamber) increases and this resulting pressure increase can damage the vascular system in the fundus of the eye and especially the optic nerve. The treatment of glaucoma and other conditions that lead to elevated pressure in the anterior chamber involves relieving pressure within the anterior chamber to a normal level.
[00156] Glaucoma filtration surgery is a surgical procedure typically used to treat glaucoma. The process involves placing a shunt in the eye to relieve intraocular pressure by creating a pathway for the drainage of aqueous humor from the anterior chamber of the eye. The shunt is typically positioned in the eye in such a way that it creates a drainage pathway between the eye's anterior chamber and a region of lower pressure. Various structures and/or regions of lower pressure in the eye that have been oriented toward drainage of aqueous humor include Schlemm's canal, subconjunctival space, episcleral vein, suprachoroidal space, or subarachnoid space. Methods of implanting intraocular shunts are known in the art. Shunts can be implanted using an external ab approach (entering through the conjunctiva and inward through the sclera) or an internal ab approach (entering through the cornea, across the anterior chamber, through the trabecular meshwork and sclera).
[00157] Embodiments of the present invention are discussed below with reference to various illustrations which are intended to illustrate, but not limit, the embodiments of the present invention. In addition to the various features and embodiments discussed herein, various methods of operating these embodiments can also be provided. These methods are shown and illustrated in many of the images and figures included in the annex.
The present invention relates to various embodiments of the invention and device concepts for an intraocular shunt inserter used in eye surgery. Some inserter modalities can be designed to be used with the AqueSys Xen™ implant. The insert can be made from injection molded plastic to be an inexpensive disposable device. The shunt can be preloaded into the insertion device. One Hand Inserter Designs
[00159] In accordance with some embodiments described herein, the inserter may function as a one-handed device in order to allow an operator to hold it on the other side of an eye-catching fixture, such as a hook. This can improve surgical control and placement accuracy and makes surgery easier as well. An illustration of a process for treating an eye 12 is shown in Figure 1A. Figure 1A illustrates the use of a hook 14 to hold the eye 12 and an inserter 100 for introducing an intraocular shunt into the eye.
[00160] Figures 1B-19C illustrate more details of the inserter 100 shown in Figure 1A. Inserter 100 can be operated using a single hand, thus facilitating the use of the inserter by an operator. Inserter 100 may comprise a housing 102, a needle assembly 104, and a slide member 106. As shown in Figure 1B, the inserter 100 may be configured such that the slide member 106 is coupled to the housing 102 and is slidable thereon. along an elongated slot 110 of housing 102. Slide member 106 may be selectively movable by an operator in order to drive movement of components of needle assembly 104.
[00161] For example, when the slide member 106 moves distally along the slot 110 (i.e., toward the needle assembly 104), the slide member 106 may result in or cause a deviation (not shown) to be advanced. within needle assembly 104, and in some embodiments, released from needle assembly 104. In accordance with some embodiments discussed further below, movement of sliding member 106 can result in movement of components of needle assembly 104. of the sliding member 106 can be converted to rotary movement, which can then be converted to movement along a longitudinal axis of the inserter 100. One of the benefits of this innovative and complex movement conversion mechanism is that it allows for different modalities. of the inserter provide precise and measured movements of its components within a compact package.
[00162] As illustrated in Figure 2, the needle assembly 104 may comprise a needle component 120, a plunger 122, and a sleeve component 124. The needle component 120 may comprise a needle 25 or 27GA. Plunger 122 may be slidably movable within a lumen of needle member 120 along a longitudinal axis 178 of inserter 100. In addition, needle member 120 may be slidably movable within a lumen of needle member 100. sleeve 124 along longitudinal axis 178. Each needle component 120 and plunger 122 may be coupled to respective conductive components of a conductive assembly 130 disposed within housing 102. When in an assembled state, inserter 100 may be configured in such a manner. that the needle member 120, the plunger 122 and the sleeve member 124 are aligned along or coaxial with the longitudinal axis 178. Some lead assemblies for actuating a plunger and for withdrawing a needle from an inserter are disclosed in pending patent applications US Nos. 13/336,803, 12/946645, 12/620,564, 12/946653,12/946,565 and 11/771,805, all of which are incorporated herein by reference.
[00163] Referring to Figures 2-3, the needle member 120, the plunger 122 and the sleeve member 124 may be operatively coupled to the conductor assembly 130 and/or the housing 102. For example, the needle member 120 may be coupled to a needle assembly 140. The needle assembly 140, shown in Figures 2-3 and 7, can be fixedly attached to a proximal end portion of the needle member 120 such that rotational and longitudinal movement between the needle member. needle 120 and the assembly of needle 140 is restricted or impeded. Needle assembly 140 can be placed within a distal end portion of housing 102 when inserter 100 is assembled. Furthermore, as illustrated in Figure 3 and discussed further below, needle assembly 140 may be coupled to a needle conductor 164 (and in the illustrated embodiment, via a rotational adjustment member 370) of conductor assembly 130.
[00164] In addition, as shown in Figure 3, plunger 122 can be coupled to a plunger assembly 142. The plunger assembly 142, shown in Figures 3 and 5A-5B, can be fixedly coupled to a proximal end portion. or center section of plunger 122 to restrict or prevent rotational and longitudinal movement of plunger 122 relative to plunger assembly 142. In addition, as illustrated in Figure 3 and discussed further below, plunger assembly 142 may be coupled to a conductor. of piston 162 of driver assembly 130.
[00165] In addition, the sleeve component 124 can be coupled to a sleeve assembly 144. The sleeve assembly 144, shown in Figures 2-3 and 9, can be coupled to a proximal end portion of the sleeve member 124. so as to prevent rotational and longitudinal movement between the sleeve member 124 and the sleeve assembly 144. Sleeve assembly 144 can be coupled to a portion 148 of housing 102, as discussed below.
[00166] As noted above, the needle component 120, the plunger 122 and the sleeve component 124 can be operatively coupled to the conductor assembly 130 and/or the housing 102. This coupling can occur via needle assembly 140, plunger assembly 142, and sleeve assembly 144. In turn, needle assembly 140, plunger assembly 142 and sleeve assembly 144 may be coupled to one or more conductive components that engage with conductive assembly 134 to housing 102.
[00167] According to some embodiments, the mounting unit 130 can be coupled to the needle component 120 and plunger 122 to trigger movement along the longitudinal axis 178 of the needle component 120 and plunger 122 relative to the housing 102. By For example, conductive assembly 130 may be configured to rotate or slide within housing 102. Conductor assembly 130 may transfer a longitudinal or axial force along longitudinal axis 178 to needle member 120 and/or plunger 122, of independently, or at the same time, to result in movement of needle member 120 and plunger 122 relative to housing 102 along longitudinal axis 178.
[00168] As discussed herein, movement of the sliding member 106 may result in movement of the conductor assembly 130 and thereby result in movement of components of the conductor assembly 130 relative to the housing 102. Some arrangements can be configured such that the component slide 106 may be movable longitudinally or slide along longitudinal axis 178 relative to housing 102 in order to drive or result in linear movement of needle member 120 and plunger 122.
[00169] As shown in Figures 2-6B, the conductor assembly 130 may comprise a conductor component 160, a plunger conductor 162, and a needle conductor 164. In some embodiments, the longitudinal or linear movement of the slide member 106 along of longitudinal axis 178 can be converted to result in rotation of conductive member 160 of conductive assembly 130, which can then be converted to result in longitudinal or linear movement of needle member 120 and plunger 122 along longitudinal axis 178 relative to the housing 102. In some embodiments, the movement of the components along the longitudinal axis 178 may be parallel to the longitudinal axis 178. Figures 14A-16E, discussed further below, illustrate the interactions between the components of the needle assembly 104 and driver assembly 130, in some embodiments.
[00170] Figures 2 and 9A-9B illustrate configurations by which sleeve assembly 144 may be coupled to housing 102. For example, sleeve assembly 144 may comprise a protrusion or groove 146 that may mate with a protrusion or groove corresponding 148 of one or more portions of housing 102. When housing 102 is assembled, protrusion 148 may be received within slot 146, thereby securing assembly sleeve 144 relative to housing 102. Also, in some embodiments, when inserter 100 is assembled, needle member 120 and plunger 122 are movable relative to one another, housing 102, and sleeve member 124.
[00171] As illustrated, Figure 9A is a perspective view of a sleeve assembly 144 coupled to a straight sleeve component 124. Figure 9B illustrates a sleeve component 124 that has a slight curve or bend 290. The curve 290 may be adjacent to sleeve assembly 144 and provide an angular offset 292 from longitudinal axis 178 within a range of between about 5° and about 30°, between about 8° and about 15°, between about 9° and about 13°, or at about 10° to the longitudinal axis of the inserter.
The curve of the sleeve 124 can improve accessibility to areas of the eye, such as when the inserter approaches the eye from a position where the inserter is positioned over the cheekbone.
[00173] Furthermore, as illustrated, a distal end portion 294 of the sleeve component 124 may be substantially straight, while a proximal end portion 296 of the sleeve component 124 may comprise a curve or curvature. Proximal end portion 296 can be about one-quarter to about one-half the total length of sleeve member 124. In some embodiments, the length of proximal end portion 296 can be about one-third the length of the member. of sleeve 124. Therefore, in some embodiments, the distal end portion 294 may be about one-half to about three-quarters the length of the sleeve portion 124, and in some embodiments, about two-thirds the length of the sleeve portion. sleeve 124. Advantageously, then, the distal end portion 294 of the sleeve member 124 may be of sufficient length such that the entirety of the sleeve member 124 entering the eye is substantially straight.
[00174] While the sleeve component 124 may comprise a rigid structure that can withstand the bending stresses typical in performing embodiments of the procedures described herein, the needle component 120 may be made from a flexible shaft that can deflect during withdrawal proximal of the needle member 120 into the sleeve member 124.
Thus, a proximal portion of the needle component 120 that extends along the fold 290 of the sleeve component 124 can be withdrawn proximally into the sleeve component 124 proximal to or adjacent to the sleeve assembly 144. After such movement , although the proximal portion of needle member 120 has been bent, the same portion of needle member 120 may flex and straighten as needle member 120 is pulled proximally into a straight portion of needle member 124 or other components. inside the insertion device. Furthermore, portions of the needle member 120 that reside in the distal end portion of the sleeve member 124 (and therefore in a linear configuration) may be flexed or deflected to a curved or bent configuration, when the needle member 120 is proximally retracted through fold 290 of sleeve member 124.
[00176] Consequently, the use of an arcuate or curved component 124 in combination with a flexible or conformable needle component 120 may allow some inserter modalities to provide better accessibility to areas of the eye.
[00177] Some embodiments may implement aspects of the sleeve structures and methods of use described in applicant's US Patent Application Publ. No. 2012/0123434, the entirety of which is incorporated herein by reference.
[00178] The present invention may refer to a "slot" or "slots" as a structure that can be implemented in some embodiments. Where the word "groove" or "groove" appears, this reference should include (and vice versa) other structures that can guide movement or receive a corresponding protrusion, including a band, the space between the teeth, recess, cut, depression , hole, indentation, channel, path, slit or opening that extends at least partially into or through a component, and their equivalents. Furthermore, the present invention may refer to a "protrusion" or "protrusions" as a structure that can be implemented in some embodiments. Where the word "overhang" or "overhang" appears, that reference must include (and vice versa) other structures, including a ridge, ledge, tooth, bump, or other protrusion, as well as their equivalents. Furthermore, when used on mating structures, grooves and protrusions can be interchanged with each other. Thus, although various permutations of structures are available through the description and teachings herein, the present invention provides only a few examples of boss/groove configurations, but is not limited to these configurations.
[00179] Figure 3 illustrates an exploded view perspective of the components of the conductor assembly 130. The conductor component 160 is shown as a two-part structure which, when assembled, at least partially envelops one or more portions of other components of the conductor assembly 130 (shown in Figure 2). The two parts of the conductive component 160 can be secured together using a series of interlocking protrusions and recesses, thereby facilitating mechanical and/or adhesive bonding of the parts to form a composite component.
[00180] The conductor component 160, as will be discussed below, may comprise one or more grooves and/or one or more protrusions to facilitate the engagement and transfer of movement to the other components of the conductor assembly 130. The embodiment illustrated in the figures demonstrates that the conductive member 160 may comprise a series of grooves that engage with respective protrusions or grooves on the other components of the conductive assembly 130 to facilitate the conversion of movement from one form to another. The operation and movement of the components of the driver assembly 130 in the illustrated embodiment represent one of a variety of embodiments that can be implemented in accordance with the description and teachings herein.
[00181] In the embodiment illustrated in Figure 3, the slider component 106, the plunger driver 162, and the needle driver 164 may comprise a radial protrusion extending within a groove of the driver component 160 in order to facilitate transmission axial or longitudinal forces between the components and the conductors to drive the inserter 100. The rigid component 160 may comprise one or more coupling grooves for engaging with the sliding member 106, the plunger driver 162 and the needle driver 164.
[00182] Figures 3-4B illustrate an embodiment of the conductive member 160. As shown in Figures 4A-4B, the conductive member 160 may comprise a slot 170 that may be configured to engage with a corresponding protrusion of the sliding member 106. In addition, the conductive member 160 may also comprise first and second lead slots 172, 174, which may be configured to slidingly engage with corresponding protrusions of the plunger driver 162 and the needle driver 164. Thus, the slider member 106 may comprise a protrusion 180 (shown in Figure 12B), the plunger driver 162 may comprise a protrusion 182 (shown in Figures 5A-5B), and the needle driver 164 may comprise a protrusion 184 (shown in Figures 6A-6B ). This arrangement of grooves and protrusions can facilitate the transfer of movement from slide member 106 to respective ones from needle member 120 and plunger 122.
[00183] As mentioned above, some embodiments can be configured such that the protrusions and grooves are inverted so that one or more of the sliding member 106, the plunger driver 162 or the needle driver 164 comprise a groove in that a protrusion of the conductive member 160 can be received. In such embodiments, the inner protrusion may be slidably coupled or mounted to the conductive member 160 so as to slide within grooves of the conductive member 160 and result in rotational movement of the conductive member 160 to give rise to longitudinal movement of the plunger driver 162 and the needle conductor 164. In still other embodiments, the conductive member 160 may comprise a radially protruding bead along which the plunger driver 162 or the needle driver 164 can slide (such as by a bead-and-groove engagement, thereby enabling that a bead of lead member 160 slides through a groove of plunger lead 162 or needle lead 164). Such protrusions of conductive member 160 may project radially inward (toward longitudinal axis 178) or radially outward (from longitudinal axis 178) from a surface of conductive member 160. Various modifications of interactive structures of the sliding member 106, plunger driver 162, needle driver 164, and driver component 160 can be implemented in accordance with some embodiments of inserter 100.
[00184] In some embodiments, although the driver component 160 can rotate relative to the housing 102, the slide component 106, the plunger driver 162 and the needle driver 164 can be prevented from rotating (about the longitudinal axis 178) with respect to housing 102. In some embodiments, a portion of the sliding member 106, the plunger conductor 162 and/or the needle conductor 164 can be prevented from rotation relative to the housing 102 by means of direct or indirect coupling with the housing 102 The sliding member 106 can slide along the slot 110 of the housing 102 and be engaged with the slot 110 through the protrusion 180. This coupling can allow longitudinal movement of the sliding member 106 while restricting the rotation of the sliding member 106 relative to the housing. 102. In addition, the plunger conductor 162 and/or the needle conductor 164 (which may be disposed radially inwardly relative to the conduit member. or 160) may comprise one or more guide surfaces or structures that are shaped to engage with a corresponding inner guide surface or conductor structure 102, thereby restricting rotational movement of the plunger conductor 162 and/or the needle conductor 164 in relation to housing 102.
[00185] For example, in some embodiments, the plunger driver 162 and the needle driver 164 may comprise elongated bodies having a respective portion that includes a substantially rectangular cross-sectional profile. As illustrated in Figures 5A-6B, the plunger conductor 162 and the needle conductor 164 may comprise transverse profiles that allow the plunger conductor 162 and the needle conductor 164 to be mounted together in a manner that allows the conductor of corresponding plunger driver 162 and needle driver 164 will slide along longitudinal axis 178 relative to one another while restricting rotation of plunger driver 162 relative to needle driver 164 about longitudinal axis 178.
[00186] As shown in Figures 5A-5B, the piston conductor may comprise an elongated body portion 190. The elongated body portion 190 may comprise a substantially rectangular cross-sectional profile. The elongate body portion 190 may be coupled to an alignment portion 192. The plunger driver 162 may also comprise an alignment portion 192 that is coupled to a proximal end 194 of the elongate body portion. Alignment portion 192 may comprise protrusion 182, as discussed above. In addition, the alignment portion 192 may comprise an outer or outer guide surface 196 that is configured to abut or mate with an inner or inner guide surface of the conductive member 160. For example, as shown in Figure 3, the surface outer 196. Guide surface 196 may be configured to abut a corresponding guide surface 198 of conductive member 160.
Referring now to Figures 6A-6B, the needle conductor may also comprise an elongate body portion 200 having a proximal end 202 and a distal end 204 of the needle conductor 164 may comprise an alignment portion 210 coupled to the proximal end 202. Alignment portion 210 may comprise protrusion 184, as discussed above. Alignment portion 210 may also be configured to include at least one engaging structure or guide surface 212. As illustrated, engaging structure 212 may comprise a cavity having a substantially rectangular cross-sectional profile. The cross-sectional profile of the engagement structure 212 may correspond to an external cross-sectional profile of the elongated body portion 190 of the plunger driver 162.
[00188] Therefore, as illustrated in Figure 3, when assembled, the elongated body portion 190 of the plunger driver 162 can slidably engage the cavity of the engagement structure 212 of the needle conductor 164. The sliding engagement between the portion of elongate body 190 and engagement structure 212 may allow longitudinal movement of plunger conductor 162 relative to needle conductor 164 while close fit of the transverse rectangular profiles of elongate body portion 190 and coupling structure 212 substantially restricts the rotation of the plunger lead 162 relative to the needle lead 164.
[00189] Furthermore, the rotation of the plunger conductor 162 and the needle conductor 164 relative to the housing 102 can be restricted by coupling the cross profiles of one or both of the plunger conductor 162 or the needle conductor 164 with /between a mating engagement structure or surface guide within a cavity 228 of the housing 102. In this way, the plunger lead 162 and the needle lead 164 can be prevented rotational relative to the housing 102, in accordance with some embodiments.
[00190] In some embodiments, in order to restrict the rotation of the plunger conductor 162 and the needle conductor 164 relative to the housing 102, the projection 182 of the plunger conductor 162 and the projection 184 of the needle conductor 164 may extend. it engages through conductive member 160 and engages with a corresponding slot 220 of housing 102 (shown in Figure 13B). Since the protrusions 182, 184 extend through the conductive member 160 and into the slot 220 of the housing 102, the protrusions 182, 184 may engage with the housing 102 in order to limit or control the rotational movement of the conductor. of plunger 162 and needle driver 164 with respect to housing 102. Protrusions 182, 184 may control a given path, whether linear or curvilinear, defined by slot 220 formed in housing 102. In illustrated embodiments, slot 220 of housing 102 can be used for both the plunger driver 162 and the needle driver 164. In addition, the slot 220 can define a path that is substantially parallel with respect to the longitudinal axis 178 of the housing 102.
[00191] Furthermore, according to some embodiments, the sliding member 106 may be configured such that the protrusion 180 of the sliding member 106 extends through the housing 102 and into the slot 170 of the drive member 160.
[00192] As illustrated in Figures 4A-4B, the sliding slot 170 may extend in a helical path around the drive member 160. The helical path of the sliding slot 170 may extend in a substantially straight path when viewed in a planar arrangement as shown in Figure 11 (for example, the sliding slot 170 may have a substantially constant pitch). Protrusion 180 of slide member 106 may move or pass within slide slot 170 from a first position to a second, third, fourth, and fifth position. As the sliding member is moved longitudinally along housing 102, protrusion 180 moves between the positions illustrated in Figure 11. This longitudinal movement of protrusion 180 along longitudinal axis 178 can result in rotational movement of drive member 160 And, as discussed herein, rotational movement of drive member 160 can result in longitudinal movement along longitudinal axis 178 for plunger driver 162 and/or needle driver 164.
Referring again to Figures 4A-4B, the first and second drive grooves 172, 174 of the drive member 160 may be configured to engage with the lugs 182, 184. In the illustrated embodiment, the first and second drive grooves 172, 184. drive 172, 174 may each comprise a straight or linear portion through which the protrusion can pass without causing longitudinal movement of the respective rigid member and an angular portion through which the protrusion can pass which results in longitudinal movement of the drive member respective. For example, the first drive slot 172 may comprise a straight portion 230 and an inclined portion 232. The protrusion 182 of the plunger driver 162 may move or pass along various positions within the first drive slot 172. This movement may be driven as a result of the movement of the sliding member 106.
[00194] Figure 11 illustrates the paths of the first and second driving slots 172, 174 and the sliding slot 170 of the drive component 160 in a planar representation, according to some embodiments. Referring to first drive slot 172, protrusion 182 is movable from a first position to second, third, fourth, and fifth positions within first drive slot 172, as shown. As illustrated, as the first protrusion 182 moves from the first position to the second position within the slanted portion of the first drive groove, such movement results in the piston driver moving relative to the drive member 160 along the longitudinal axis 178 The movement of the plunger driver 162 from the first position to the second and third positions is illustrated in the cross-sectional side views of Figures 14A-14C. As shown, as protrusion 182 moves through sloping portion 232 of first groove 172, plunger driver 162 can be advanced distally along longitudinal axis 178 until protrusion 182 enters straight portion 230 of first groove. drive 172. Then, in the third, fourth, and fifth positions, protrusion 182 will maintain a generally constant longitudinal position along longitudinal axis 178 relative to drive member 160. In this way, plunger driver 162 will not change its longitudinal position along longitudinal axis 178, as the drive member continues to rotate, causing protrusion 182 to move from the third position to the fifth position.
[00195] Similar to the arrangement of the protrusion 182 within the first drive slot 172, the protrusion 184 may extend within the second drive slot 174 and pass along the path defined by the second drive slot 174. The second drive slot 174. guide 174 may comprise a straight portion 240 and an inclined portion 242. Protrusion 184 of needle driver 164 may move from a first position to a second, third, fourth and fifth position. In the first, second, and third positions, protrusion 184 will substantially maintain its longitudinal position along longitudinal axis 178 relative to drive member 160. However, as protrusion 184 leaves straight portion 240 of second drive groove 174 and enters angled portion 242, the longitudinal position of needle driver 164 along longitudinal axis 178 will begin to change. Thus, during initial rotation from the first position to the third position, the needle lead 164 will maintain its longitudinal position along the longitudinal axis 178 relative to the drive member 160. However, the needle lead 164 will be retracted proximally along longitudinal axis 178 relative to drive member 160 as protrusion 184 is moved through sloping portion 242 of second drive slot 174.
[00196] The movement of the sliding component 106 and the resulting movement of the components of the drive assembly 130 will be described with reference to Figure 11 and Figures 14A-16E. In position 1 (from Figure 11), as shown in Figures 14A and 15A, slider 106 can be moved distally to position 2. Movement from position 1 to position 2 results in rotation of drive member 160, which also results in longitudinal movement of the plunger driver 162, as shown in Figures 14B and 15B. As shown in Figure 16B, the resulting movement of plunger driver 162 in a distal direction along the longitudinal axis results in movement of a shunt 300 such that shunt 300 is initially exposed from needle member 120.
[00197] Then, with continued movement of the sliding member 106 to position 3, the plunger driver 162 continues to move distally, while the needle controller 164 maintains its same longitudinal position along the axis longitudinally with respect to the drive member 160, as illustrated in Figures 14C and 15C. As a result, shunt 300 is pushed out of or more out of needle member 120, as shown in Figure 16C.
[00198] Furthermore the distal movement of the sliding member 106 along the longitudinal axis results in coincidence with the protrusion 180 in motion from position 3 to position 4. This continued rotation of the drive member 160 no longer results in the longitudinal movement distal of the plunger driver 162 along the longitudinal axis. Instead, continued rotation of drive member 160 begins to result in proximal longitudinal retraction of needle controller 164 relative to drive member 160 along the longitudinal axis. As a result, the needle begins to retract into sleeve 124, as shown in Figures 14D, 15D, and 16D or 16E.
[00199] Thereafter, continued movement of sliding member 106 to position 5 will continue to result in proximal retraction of needle driver 164 relative to drive member 160, while plunger driver 162 maintains its relative longitudinal position relative to to drive member 160. As a result, needle member 120 can be withdrawn into sleeve 124, as shown in Figure 16D or Figure 16E. Shunt 300 can be left in the desired or target area, as the needle and sleeve 124 are removed. While needle member 120 is proximally retracted, as illustrated in Figures 16D-16E, plunger 122 (although not shown in Figures 16A-16E) can maintain its longitudinal position relative to sleeve 124 to provide a proximal stop and prevent proximal retraction of shunt 300 as needle member 120 is proximally retracted on sleeve 124.
[00200] Figure 16D illustrates an end position of the needle component 120 relative to the sleeve 124, and Figure 16E illustrates an embodiment in which the needle component 120 is fully retracted within the proximal sleeve 124. According to some embodiments, the Position of needle member 120, as shown in Figure 16D, can help resist or prevent damage to eye tissue or shunt during shunt implantation.
[00201] For example, when withdrawing the needle component 120 into the sleeve 124, the operator may inadvertently move the needle with respect to the sclera, thus creating a lateral or vertical tension or force, which may bend or stress the component of the needle 120. This lateral or vertical force can result when an operator attempts to position the inserter above a patient's facial feature. Often, since one of the eye's preferred implantation sites requires the operator to position and hold the inserter above the patient's cheekbone, jaw, and/or know that it may obstruct proper placement of the inserter in relation to the eye.
[00202] Due to the high potential strain of the force operator in a lateral or vertical direction, it may be preferable to leave at least a portion of the bezel exposed from a distal end of the sleeve 124 and to withdraw the entire inserter from the eye in one. time in the configuration shown in Figure 16D. Thus, until proximal withdrawal of the inserter (including the sleeve 124) is performed to release the shunt 300 into the eye, a portion of the bevel of the needle component 120 may be exposed and/or in contact with the eye tissue (by example, sclera). As a result of leaving the needle component 120 exposed or involved with the ocular tissue, the coupling of the needle component 120 with the eye tissue may tend to provide resistance against any lateral or vertical forces. Thus, the inserter will not tend to "jump" or undergo a substantial shift prior to proximally withdrawing the sleeve 124 away from the eye tissue.
One of the advantageous results of keeping a portion of the bevel exposed from the distal end of the sleeve 124 includes preventing damage to eye tissue, which can occur if the sleeve suddenly moves laterally or vertically, maintaining its longitudinal position relative to the tissue eye. In such situations, the distal end of sleeve 124 can scrape or otherwise damage eye tissue. In some situations, damage to the eye can include damage to the iris, such as dissecting the iris.
[00204] Furthermore, because the shunt 300 may extend at least partially into the sleeve 124 after the needle member 120 is fully retracted within the sleeve 124, a substantial lateral or vertical force exerted on the sleeve 124 can result in substantial contact between the lumen of the sleeve 124 and the shunt 300. In some situations, this contact can pull the shunt 300 out of the eye tissue or otherwise damage the proximal end or inflow end of the shunt 300.
[00205] Under some embodiments, between about a quarter and over a full longitudinal length of the bevel (as measured along the longitudinal axis) may be exposed from the distal end of the sleeve component 124, as shown in Figure 16D. In some embodiments, the needle bevel may extend from the distal end of the sleeve a distance of about one-quarter of the longitudinal bevel length to about three-quarters of the longitudinal bevel length. Also, in some embodiments, the bevel may extend from the sleeve 124 for a length of about half the longitudinal length of the bevel. For example, in some embodiments, a distal tip of the bevel may extend or protrude a distance of about 1 mm, about 2 mm, or about 3 mm or more from a distal end of the component. of sleeve 124. Other improvements and modalities can be made using the teachings disclosed herein.
[00206] As an alternative to Figure 16D, the needle component 120 may be fully retracted into the sleeve 124 prior to proximal retraction of the sleeve 124 of the eye.
[00207] After holding the needle component 120 at least partially exposed or involved with the ocular tissue, as illustrated in Figure 16D, the proximal retraction of the sleeve component 124 and the needle component 120 may mitigate or prevent lateral and/or vertical forces being exerted on shunt 300. Thus, as the operator's hand moves proximally when withdrawing the inserter from the eye, most or all of any lateral or vertical tension is removed from the inserter.
[00208] Although the slot pathways illustrated in Figure 11 demonstrate one modality of relative movement and actuation of the drive set components 130, other pathways can be used to create different types of movement of the respective drive set components 130.
[00209] For example, the slanted portion of the grooves may have a curvilinear path that increases or decreases the longitudinal displacement of a given component per rotational unit, as the drive component 160 rotates. The sliding groove 170 may be linear or have a curved section so as to provide variable actuation or increase or decrease the rotational rate per unit of longitudinal movement of the sliding member 106.
[00210] Likewise, the sloping portions of the first and second drive slots 172, 174 may have curvilinear portions that increase or decrease the amount of longitudinal displacement per rotation of the unit. The first and second drive grooves 172, 174 may be configured as a substantially curvilinear groove which transitions from a straight portion to an angular portion or allows longitudinal displacement of a respective member while maintaining the longitudinal position of said respective member. The first and second slots 172, 174 may therefore have a better defined transition between the slot portions along which movement of the protrusions result in movement along the axis 178 and the slot portions that maintain a position. along axis 178 of a respective component. Alternatively, the first and second slots 172, 174 may have a path that provides a gradual, smooth, or less noticeable transition between a portion of the slot, along which movement of the protruding results in motion of a given component along the axis. 178, to another part of the groove, along which movement of the protruding results in maintaining a position along axis 178 of the administered component.
[00211] In addition, the first and second slots 172, 174 and/or the sliding slot 170 (any one or any combination thereof) may have various sections or portions thereof that provide a different drive mechanism or rotational rate or longitudinal displacement along the longitudinal axis. Thus, persons skilled in the art can implement various modalities to achieve desired articulations of the inserter components disclosed herein.
[00212] According to some embodiments, as shown in Figures 4A-4B, the drive component 160 may comprise a two-piece design using first and second parts 252, 254. The two-piece design may allow two or more grooves are implemented in an injection moldable process using two parts. Thus, a single composite unit component 160 can be injection molded while allowing the drive component 160 to comprise one or more grooves that extend partially or completely along the body of the component 160. This allows the grooves to change towards a separation line 256 between the first and second portions 252, 254, so that the complex groove lines become moldable. For example, due to the limitations of injection molding processes, a single molded part would not allow groove lines that change direction since the component is not removable from the mold. Therefore post-molding processing would be required. However, some embodiments disclosed herein advantageously overcome this problem using the manufacture of a two-piece component by injection molding.
[00213] As shown in Figure 10, the inserter 100 may also comprise a cap component 310. The cap component 310 may comprise a first end 312 and a second end 314. The cap of the first end component 312 can be opened and be configured to engage with a portion of housing 102 in order to secure cap member 310 to a distal portion of housing 102 in order to cover and protect sleeve member 124 and needle member 120.
[00214] Figures 12A-12B are perspective views of a sliding member 106 of the inserter shown in Figure 1B, in accordance with some embodiments. Figure 12A illustrates a top perspective view of the slider component 106. The slider component 106 may comprise a proximal end 316 and a distal end portion 318. The distal end of the portion 316 and the distal end portion 318 may comprise raised boundaries or edges that project radially from the sliding member 106 to provide a secure, ergonomic grip with an operator's thumb or finger during use.
[00215] In some embodiments, the proximal end portion 316 may comprise one or more radial lugs 324. Radial lugs 324 may allow the operator to have a structure that is easy to engage with the finger to provide rotational or of torsional force to the inserter so as to rotate the inserter about the longitudinal axis 178 of the inserter.
[00216] Furthermore, although Figure 12A illustrates that the sliding member 106 may comprise one or more slots or intermediate protrusions 326, one or both of the protrusions 326 may be omitted from the sliding member 106. In fact, in some embodiments, omitting the protrusions 326 may allow an operator's finger to sit more deeply and securely between the proximal and distal end portions 316, 318 of the sliding member 106. In still other embodiments, the protrusions 326 may have a reduced profile, profile variable, or be given as a series of random or symmetrically placed protrusions or thorny protrusions or thorns.
[00217] Referring momentarily to Figure 12B, protrusion 180 may be formed integrally with the sliding member body 106. However, in some embodiments, protrusion 180 may also be formed as a separate member which is then bonded together. to the body of the sliding member 106.
[00218] Figures 13A-13B illustrate one embodiment of housing 102. As shown, housing 102 may comprise a first portion 320 and a second portion 322. The first and second portions may define an interior cavity 228 when assembled together . As generally illustrated in Figure 2, interior cavity 228 may include drive assembly 130 therein.
[00219] The housing 102 may also comprise a slot 334 through which the protrusion 180 of the sliding member 106 may pass. Thus, sliding member 106 may be coupled to first portion 320 of housing 102 and protrusion 180 of sliding member 106 may extend through slot 110. By extending through slot 110, protrusion 180 may engage sliding slot 170 of the drive component 160.
[00220] The second portion 322 of housing 102 may also comprise slot 220, as discussed above. Slot 220 may engage with protrusions 182, 184 of plunger driver 162 and needle driver 164, respectively. When assembled, as illustrated in Figure 1B, the slide member 106, the plunger driver 162, and the needle driver 164 will have a substantially fixed rotational position relative to the housing 102. In effect, it is because of the free rotation of the housing member. It drives 160 with respect to housing 102 (in response to movement of sliding member 106) that longitudinal displacement of plunger driver 162 and needle driver 164 along the longitudinal axis can occur.
[00221] As also illustrated in Figures 13A-13B, housing 102 may comprise a clamping section 340 comprising a saddle-shaped identification on housing 102. Clamping section 340 may comprise first and second portions 342, 344 extend radially outwardly from a longitudinal axis of housing 102. First and second portions 342, 344 may comprise proximal and distal annular ribs or protrusions extending from an outer surface of housing 102. First portion 342 may providing resistance against proximal movement of an operator's hand relative to housing 102. In addition, second portion 344 may extend radially outwardly to provide resistance against proximal movement of an operator's hand relative to housing 102. In some embodiments, clamping section 340 may comprise a trough portion 346 disposed between first and second portions 342, 344. comprising an inner diameter, and the first and second portions 342, 344 may comprise a maximum outer diameter. The maximum outside diameter can be between about 1.5 and about 5 times larger than the inside diameter, between about 2.5 and about 4 times larger than the inside diameter, or between about 3 and about 4 times larger than the inside diameter.
[00222] The clamping section 340 may allow an operator to firmly grip the distal portion of the housing 102 with or between the fingers while longitudinally actuating or moving the sliding member 106 to the clamping section 340. Thus, some arrangements allow for actuation one-handed feature of the inserter 100. This advantageous feature of some modalities may allow an operator to freely enjoy the other side during a surgical procedure while being in full control of the inserter 100 with a single hand.
[00223] Furthermore, various arrangements can be provided in which a length of the step or slots in the drive component 160 can be modified in order to adjust the total stroke of the sliding component required to drive the inserter. Although a greater travel distance may be preferred in order to provide smooth movement and controlled forces exerted on and by the inserter components, various aspects of the drive assembly 130 can be modified to adjust the initial position of the sliding member with respect to the clamping section 340. Such modifications or variations may be made in order to provide a specific ergonomic design for a particular operator. Other features and modifications can be made to further customize the inserter's ergonomics or operation. Rotational Adjustment of the Bevel Needle
[00224] Referring now to Figures 17-19C, an aspect of some embodiments of the inserter can be implemented to provide rotational control of the needle assembly. As illustrated in Figure 1B, the inserter may comprise needle assembly 104. In accordance with some embodiments, needle assembly 104 may be configured to allow control of rotational alignment of needle member 120 relative to housing 102. , depending on the operator's position in relation to a patient (eg, whether the operator approaches a left or right eye, or whether the operator is on the left or right side of a patient), the rotational alignment of the needle component 120 can be adjusted such that a bevel 360 of the needle can be rotatably positioned to a desired orientation relative to the tissue of the eye. This feature can allow the operator greater flexibility to grip the inserter while still making sure the bezel is in during needle penetration through the sclera. It can also accommodate using the same inserter for left or right eye surgeries. In different surgical configurations (upper temporal, right eye, left eye, right-handed, left-handed) it may be advantageous to hold the inserter slightly rotated for ease of access. By pre-rotating the needle bevel, such rotation can be precompensated to ensure that the needle bevel is up during the scleral penetration phase.
[00225] The needle assembly 104 may comprise various interconnectable components to allow longitudinal displacement of the needle component 120 relative to the housing 102 while allowing a rotational alignment of the needle bevel 360 to be adjusted. As shown in Figure 2, needle assembly 104 may comprise a needle assembly 140, needle member 120 coupled to the assembly needle, a rotational adjustment member 370, and needle driver 164. As shown in the side view in cross-section of Figure 17, the rotational adjustment of component 370 may comprise a central opening 372 into which a distal engagement portion 374 of needle driver 164 may be passed and engaged. As illustrated, the engagement portion 374 can be received within the opening 372 and a locking protrusion or hook portion 376, which can secure the longitudinal position of the needle conductor 164 relative to the rotational adjustment member 370. opening 372 and coupling portion 374 may be configured to allow free rotational movement of rotational adjustment member 370 relative to needle driver 164. For example, opening 372 may comprise a generally cylindrical shape and engagement portion 374 may comprise a generally cylindrical shape with a smaller outside diameter.
[00226] In addition, the needle assembly 140 may comprise a proximal cavity 380 having an interior surface configured to engage with the outer surface 382 of the rotary coupling component 380. The engagement between the outer surface 382 and the cavity 380 may rotationally and longitudinally securing the rotational adjustment member 370 relative to the mounting needle 140. Therefore, while the rotational adjustment member 370 transfers longitudinal movement from the needle driver 164 to the needle assembly 140, the rotational adjustment member 370 may allow an operator to adjust a rotational alignment of the mounting needle 140 relative to the needle driver 164. Therefore, the needle member 120, which is coupled to the needle mounting 140, can be rotationally aligned such that the bevel 360 is rotated to a desired relative alignment for housing 102, as shown in Figures 19A-19C.
[00227] Figure 18 illustrates the potential paths and positions of adjustment or rotational alignment of an adjustment pin 390 of the rotational adjustment component 370. The adjustment pin 390 can move within one or more tracks 392 of a path of guide slot 394 formed in housing 102. As illustrated in Figure 18, slot guide track 394 may comprise three bands 392 that allow adjustment pin 390 to be moved relative to housing 102, thus transferring a rotational movement to the mounting needle 140 and the needle member 120 so as to adjust a rotational position of the bevel 360 with respect to the housing 102. Although the guide slit pathway 392 is shown as having three bands 392, other embodiments may be provided in which two, four, five, or more ranges are used. Furthermore, the guide slit track 394 can also be configured as an open space that allows free adjustment of the rotational position at any position along an arcuate path or along an outer circumferential arc. Bevel Needle Inserter with Fixed Rotational Orientation
[00228] As discussed above, some embodiments may implement the rotational adjustment component 370 to provide a drive mechanism (shown as the adjustment pin 390 and the embodiment shown in Figure 17) that may allow adjustment of the 360 bevel rotational orientation. for the relative accommodation 102 . However, other modalities can be envisioned to eliminate the rotational adjustment component 370, thus simplifying the needle drive and assembly assembly and allowing the operator to exercise rotational control of the entire inserter during the procedure by rotating the inserter , as a unit.
[00229] For example, Figures 20-23B illustrate an embodiment of an inserter 400 in which the rotational adjustment of the needle relative to the housing 102 has been removed. Thus, although the drive assembly and other components of the inserter 400 can be substantially configured the same as the other respective components of inserter 100 discussed in Figures 1-16D, inserter 400 demonstrates a simplified design that does not utilize a rotational adjustment mechanism for needle assembly 104. As shown in Figure 20, the inserter can comprise the housing 402 a needle assembly 404, and a sliding member 410. The needle assembly 404 may comprise a needle assembly 412 that can be coupled to a needle driver 414 such that the needle driver 414 and the needle assembly 412 have a substantially fixed rotational and longitudinal coupling. Therefore, longitudinal movement of needle controller 414 along the longitudinal axis will be transferred directly to needle assembly 412. Furthermore, needle assembly 412 will not tend to rotate with respect to needle driver 414 about the longitudinal axis. of inserter 400. Other features and components of inserter 400 are identical to those discussed above with regard to inserter 100 and will not be repeated here for brevity.
[00230] Figures 23A and 23B illustrate the needle driver 414 of the inserter 400. Some features of the needle driver 414, such as the proximal portion and the boss, are the same as the needle driver 164 discussed above. However, the distal portion of needle driver 414 has an engagement surface 420 configured to engage with needle assembly 412 in order to correct the longitudinal and rotational orientation of needle driver 414 relative to needle assembly 412. , a rotational adjustment component is omitted. Inserter with Double Actuation Mechanism
[00231] Referring now to Figures 24-29, another embodiment of an inserter and alternative features of an inserter will now be described. Figures 24-25 illustrate an inserter 500 that has a rotational mechanism 502 that is coupled to the housing 504 of the inserter 500. The rotational mechanism 502 can be used as an alternative means for rotating the drive member 160 of the drive assembly 130. However, the inserter may also comprise a sliding member 506, which may function similarly to the sliding member 106 of the inserter 100 discussed above and provide a means for rotating the drive member. Other features and functions of inserter 500 may be similar or identical to inserter 100 and will not be repeated here for brevity.
[00232] The rotational mechanism 502 may comprise a drive portion 520 and a coupling portion 522. The coupling portion 522 may be configured to be positioned within the housing and engage with a drive assembly portion 130. For example, engagement portion 522 may include an outer surface that engages with guide surface 198 of drive member 160. In some embodiments, engagement portion 522 may be glued or secured to guide surface 198. However, in some embodiments, engagement portion 522 may be glued or secured to guide surface 198. embodiments, the engagement portion may be mechanical or by friction with the guide surface 198.
[00233] The coupling between the rotational mechanism 502 and the drive component 160 allows the operator to rotate the drive component 160 by manually rotating the drive 520 portion of the rotational mechanism 502. Thus, instead of and/or in addition to the driving the drive assembly 130 using the slider member 506, the operator may manually rotate the rotational mechanism 502 in order to facilitate the rotation of the drive member 160. Such a mode may allow an operator to use the longitudinal movement of the slider member 506 to actuate the inserter 500 and/or use the rotational actuation through the rotational mechanism 5022 to activate the inserter 500.
[00234] Figures 26A-26B illustrate the starting and ending positions of the plunger driver 162 and the needle controller 164 in response to actuation of the rotational mechanism 502. starting position shown in Figure 26A to the end position shown in Figure 26B, and the interaction between the drive component 160 and the plunger driver 162 and the needle controller 164 is identical to that of the inserter 100 and will not be repeated here for reasons of Brevity.
[00235] In some embodiments, the slider member 506 may also comprise a slider manipulator 510. The slider manipulator 510 may be coupled to the radially protruding knob 512 of the slider member 506 (similar to the slider member 106 of the inserter 100). Sliding manipulator 510 can provide a larger physical area to facilitate grasping or exerting force against slide member 506. Thus, instead of using just one finger or fingers to actuate button 512, slide member 506 can be actuated through the 510 slide manipulator using a palm or otherwise.
[00236] Figures 27A-27B illustrate the position of shunt 300 within component 120 and needle with respect to sleeve 124 when inserter 500 is in the initial position of Figure 26A and the final position of Figure 26B, respectively. The movement and function of the plunger 122, the needle member 120, and the sleeve 124, as well as the resulting movement of the shunt 300, can be substantially identical to the function and movement of these components in the inserter 100.
[00237] Figures 28A-28B illustrate housing 504 of inserter 500. Figure 28A illustrates a first portion 530 of housing 504, and Figure 28B illustrates a second portion 532 of housing 504. Similar to housing 102 of inserter 100, The housing 504 may include slots that correspond with and facilitate engagement between the movable projections of the drive assembly 504 and the housing.
[00238] For example, Figure 28A illustrates a guide groove 550 that may allow a sliding member protrusion to extend through the housing and engage with the unit assembly 130. In addition, the second portion 532 of the housing 504 may comprise a slot 552 that corresponds with the protrusions of the plunger driver 162 and the needle driver 164 and can provide the same advantages as discussed above with respect to the inserter 100. In addition, the housing 504 can comprise a proximal end 560, which comprises a opening 562 extending therethrough in a longitudinal direction. The opening 562 may be formed together by cutouts in the first and second portions 530, 532 of the housing 504. As is generally shown in Figures 25-26B, the engaging portion 522 may be positioned within the housing 504 and a section of the mechanism. rotation 502 can extend through opening 562 such that the actuator portion 520 can be easily gripped by the operator. Figure 29 illustrates the positioning of the rotational mechanism 502 and the other components of the present embodiment.
The inserter 500 may also comprise a locking component 528. The locking component 528 may comprise a head portion 527 and a coupling portion 528. The coupling portion 528 may extend through the slot 550 of the housing 504 Coupling portion 528 may be coupled to a portion of drive member 160 such that sliding member 506 is unable to move distally through the slot and/or drive member 160 is unable to rotate relatively. to housing 504. However, locking member 526 can be withdrawn from engagement with drive member 160, thus allowing rotational movement of drive member 160 relative to housing 504. sliding member 506 and/or rotational mechanism 502 may be initiated, thereby actuating the functions of inserter 500.
[00240] Referring now to Figures 30A-32C, additional features may be incorporated into some embodiments of the inserter. In particular, some inserter modalities may comprise different manipulation components that facilitate manual actuation of the inserter. However, in some embodiments, a spring mechanism or driven motor can be incorporated into the inserter in order to facilitate inserter actuation without the need for longitudinal movement of a sliding component.
[00241] Initially, with reference to Figures 30A-30B, an embodiment of an inserter 600 is shown which comprises a manipulator component 602 which is coupled to a knob 604 of the slider component 606. Other features and aspects of the inserter 600 can be configured to be identical or similar to inserter 100. However, manipulator member 602 may be configured to encircle, surround, or attach a proximal end of inserter 600. Upon actuation of manipulator member 602, manipulator member 602 may be positioned on more and more of the 102 housing of the inserter 600. Alternative Inserter Handling Designs and Features
[00242] Figure 30A illustrates the manipulating member at a first position 610, and Figure 30B illustrates the manipulating member at a second position 612. Similar to the discussion above with respect to Figures 26A-26B, the movement and function of the inserter 600 may be similar or identical to the movement and function of inserter 100 when manipulating member 602 is moved from first position 610 to second position 612.
[00243] The configuration of the manipulation component 602 may tend to allow an operator to more easily grip and/or actuate the inserter 600 and the sliding member 606. Similar to the inserter 500, the inserter 600 may also comprise a locking member 620, which can extend through the slot and engage the drive member of the drive assembly positioned within the housing 102. When the locking member 620 is removed, the manipulator member 602 can be driven and moved distally from the first position 610 for the second position 612.
[00244] The function and operation of the blocking component 620 may be identical to the function and operation of the blocking component 526 and will not be discussed here for brevity.
[00245] In some modalities, the mechanical or electrical drive of the drive assembly can allow discrete steps or component movements that can be performed separately. For example, the step of advancing the plunger driver can be performed and still moving the drive assembly can cease until unless the operator initiates a new movement or presses an actuator button to start a new step. Each step may require additional operator action. However, all steps of the process can also be carried out after a single movement or a single actuation of a button.
[00246] Furthermore, in some embodiments, the inserter may comprise one or more lights (or one or more colored indicators) that can visually indicate a process step or that a component of the inserter is currently undergoing movement. Inserter Unit Assemblies Developed
[00247] Figures 31-32C illustrate additional inserter modalities that are powered, for example, in which a mechanical force other than or in addition to a force exerted by the operator can be implemented to actuate the inserter drive assembly. The rotational force exerted on the drive assembly can be derived from either an electric motor or one of a variety of mechanical systems that can control the rotational movement of the inserter drive assembly.
[00248] Figure 31 illustrates an inserter 700, which comprises a housing 702 and a needle assembly 704 that can be actuated using a actuation assembly 706 that is disposed within the housing 702. The actuation assembly 706 may comprise a button 710 which can drive rotational movement of the drive member of drive assembly 130 (which may be the same as the drive assembly illustrated in inserter 100). Drive assembly 706 can be powered. For example, drive assembly 706 may comprise an electric motor that has an output unit that allows a needle assembly 704 connected to inserter 700 to be driven in a manner such as disclosed above.
[00249] The inserter 700 shown in Figure 31 can be configured to provide a drive assembly driven by a motor 706 that allows an operator to drive movement of the needle assembly 704 using a single button 710. The drive assembly 706 may comprise a drive motor 720. The drive motor 720 may comprise an electric motor that provides rotational force to one or more components or provides longitudinal force to one or more components. For example, drive motor 720 can provide longitudinal distal force to the plunger and proximal retract force to the needle. The drive motor 720 can drive one or more, such as a, three, or more components, and provide a driving force in a distal or proximal direction.
[00250] In some embodiments, drive assembly 706 may be detachably coupled to a given needle assembly 704 in order to allow drive assembly 706 to be a reusable component of inserter 700. For example, inserter 700 may be separable such that a removable portion of inserter 700 (such as drive assembly 130 and/or needle assembly 704) can be replaced after use.
[00251] Any of the modalities disclosed herein can be implemented in such a way that the inserter is part of a kit with replaceable drive sets and/or needle sets, in order to facilitate the reuse of a part of the inserter. In such embodiments, the reusable portion of the inserter can be tailored (eg, size, length, cross-section, or ergonomically) to a given operator's hand or based on operator preference to ensure maximum comfort and control. of the inserter during use. However, any of the modalities disclosed herein can also be configured as single-use devices.
[00252] Referring now to Figures 32A-32C, different embodiments of the inserts are illustrated that utilize a spring-loaded force to drive rotation of the drive member. These embodiments also illustrate inserters comprising a push-button actuation mechanism. As noted above, with reference to Figure 31, some embodiments of the drive assembly may comprise an electric motor that provides a motive force to the needle assembly to drive the inserter. In the embodiments of Figures 32A-32C, the drive assembly may be driven using spring force. For example, as shown in Figures 32A-32C, the drive assembly can comprise a spring that can be preloaded so as to selectively direct the movement of one or more components of the inserter.
[00253] Figure 32A illustrates an inserter 740 comprising a drive assembly 742. The drive assembly 742 may comprise a drive knob 744 that can be moved in a longitudinal direction along the longitudinal axis in order to disengage a stop member 746 of a rotational drive motor 750. The drive motor 750 may comprise an output component 752 coupled to the drive assembly 130. The output component 752 may be rotatable within a housing 102 of the inserter 740. The output component 752 may comprise a proximal end 754 which is coupled to a drive spring 756. The drive spring 756 may comprise a proximal end which is coupled to a base 760. The drive spring 756 may be preloaded or coiled in such a manner that the drive spring 756 exerts a rotational or torsional force against the proximal end 754 of the output member 752. Stop 746 and a brake portion 762 of output component 752 can restrict or prevent rotational movement of output component 752. Preloaded drive spring 756 can be allowed to drive movement of output component 752 (and therefore , drive assembly 130) only when the operator moves drive button 744 in a distal direction, which results in stop member 746 being released from engagement with brake portion 762.
[00254] In some embodiments, the actuation button 744 and the stop element 746 may be formed at opposite ends of a actuation element 764. The actuation element 764 may be longitudinally movable relative to the housing 102. Coupling between the element of stop 746 and the brake portion 762 of output component 752 may be a friction fit. In some embodiments, the engagement between the stop element 746 and the brake portion 762 of the output member 752 may be a mechanical coupling between the complementary structures of the stop element 746 and the brake portion 762. Stop 746 may comprise one or more lugs or grooves which may mate with one or more grooves or lugs of corresponding stop portion 762. Stop element 746 may comprise a tooth that can engage with one of a plurality of teeth formed in brake portion 762. Therefore, when actuation knob 744 is moved in a distal direction, actuation element 764 can be moved in the distally, thereby separating the stop member 746 from the brake portion 762 and disengaging the stop member 746 such that the output member 752 is allowed to rotate. This trigger can allow the completion of just a single step of the shunt deployment process (thus requiring multiple pushes of the 744 button to complete the process) or the completion of all steps in the process (thus requiring only a single tap on the button 744).
[00255] Rotation of output component 752 can drive or result in rotation of drive assembly 130 of inserter 740. Drive assembly 130 can be configured to provide the same function and features as inserter drive assembly 100 described above . Thus, the details and function of its components are not repeated here for brevity. Therefore, the inserter 740 may have a single push-button actuation mechanism that is spring driven and allows for incremental actuation and movement of the actuation assembly 130 of the inserter 740.
[00256] Other modalities of a spring-loaded drive assembly can also be implemented. For example, Figure 32B illustrates an inserter 780 comprising a drive element 782 that can selectively engage a brake portion 784 of an output component 786 of a drive assembly 790 of the inserter 780. Similar to the embodiment discussed earlier in Figure 32A, the inserter 780 can utilize a preloaded spring, which drives the rotation of the output component 786. The rotation of the output element 786 can be limited by the contact between the drive element 782 and the brake part 784. In the embodiment shown in Figure 32B, the drive element 782 uses radial engagement or coupling by which the brake portion 784 of the drive assembly 790 moves in a radial direction. This radial engagement contrasts with the longitudinal coupling between the drive element 764 and the brake part 762 in which the brake part 762 moves along the longitudinal axis (Figure 32A). Thus, inserter 780 may incorporate a radially actuated push-button actuation assembly that allows an operator to selectively actuate one or more functions or movement steps of the inserter 780 actuation assembly.
[00257] In order to provide a radial engagement with the brake portion 784, the drive element 782 may comprise a stop member 792 extending from the drive element 782. In some embodiments, the drive element 782 may comprise a circular ring or a portion thereof extending from an actuation button 794. The actuation element 782 may comprise a complete or partial ring. Drive element 782 may circumferentially travel or extend through output member 786 so that stop element 792 is positioned in an opposite position relative to drive button 794.
[00258] In some embodiments, the output component 786 may comprise a generally circular cross-section in the brake portion 784 thereof that may engage with the stop element 792 of the drive element 782. As illustrated in Figure 32B, the element stopper 792 may be positioned at the lower end of the circular cross-section of the output member 786, while the actuation button 794 may be positioned at an opposite end, at the top of the circular cross-section. Actuation element 782 can be biased into an engaged position (shown in Figure 32B) by force of a spring 796 acting against actuation button 794. Spring 796 can push against housing 102 and a lower or driven or driven surface. structure of the actuation button 794. Thus, the spring 796 can provide a radial force that urges the actuation button 794 in a direction away from the output member 786 such that the stop member 792 is forced into engagement with the end portion. brake 784, as shown in Figure 32B.
[00259] The coupling between the stop element 792 and the brake part 784 can be overcome by compressing the actuating button 794 to the housing 102, thus overcoming the force of the spring 796. The coupling between the stop element 792 and the brake portion 784 can be overcome by depressing the drive element 782, which can result in the rotation of the output component 786 and consequent movement of the drive assembly 130. Other features and components of the drive assembly 790, including base and drive spring, as well as friction or mechanical coupling between stop member 792 and brake portion 784, can be implemented as described above with respect to the inserter embodiment 740 shown in Figure 32A. Thus, this discussion is not repeated here for brevity.
[00260] Although the modalities shown in Figures 32A and 32B illustrate alternative engagement modes for a spring loaded drive assembly and spring loaded drive assembly, Figure 32C illustrates an alternative configuration in which the inserter drive assembly is positioned distally in with respect to the drive assembly, in contrast to the configurations illustrated in Figures 32A and 32B.
[00261] Figure 32C illustrates an inserter 800 that may comprise a drive assembly 802 that uses the same radial drive as in the embodiment illustrated in Figure 32B. However, in contrast to the embodiment shown in Figure 32B, drive assembly 802 can be positioned between drive assembly 130 and needle assembly 104. Such an arrangement can provide an inserter configuration using radial coupling to have a push button. trigger 804 which is positioned closer to the distal end of inserter 800 as compared to inserter 780. Thus, various inserter modalities can be implemented to position the trigger button in a variety of locations.
[00262] In order to position the drive assembly 802 distally to the drive assembly 130, the configuration and longitudinal length of the drive components of the drive assembly 130 can be modified. For example, the plunger driver and needle driver may be longitudinally larger than the plunger driver and needle driver of the embodiments shown in Figure 32A-32B. In addition, a drive assembly base 806 may comprise a central opening or opening through which drive assembly drive components 130 may pass. Other features and modifications of inserter 800 may be similar to those described above with regard to inserters 740 and 780 and will not be repeated here for brevity.
[00263] In any of the embodiments illustrated in Figures 32A-32C, the drive component of the drive assembly 130 can be modified to comprise a brake part for engaging with a stop element. In addition, the drive component can also be directly coupled to the drive spring. Consequently, some modalities can be implemented that do not use an output component. In addition, the base, against which one end of the spring is coupled, may be a structure formed in an interior of the housing. Implant Retention Device
According to some embodiments, an implant retaining device may be provided to facilitate the retention of a shunt within the inserter needle during transport and transport of the inserter or needle assembly. Thus, the inserter can be used in combination with a shunt retaining device that engages with an inserter needle in order to prevent the shunt from accidentally coming off the needle.
[00265] For example, Figure 33 illustrates a distal end of an inserter, where a needle component 120 carries a shunt 300. The shunt retaining device 820 may engage with a distal end 822 of the needle component 120. Retainer 820 may comprise an elongated body 824 comprising a first portion 826 and a second portion 828. First portion 826 may taper from a larger diameter cross section to a smaller diameter cross section. The smallest diameter cross section may be less than an inside diameter of distal end 822 of needle member 120. Thus, first portion 826 may be inserted into a lumen 830 of needle member 120.
[00266] The elongate body 824 may be configured such that the taper of the first portion 826 provides the elongate body 824 with a variable diameter cross section. The diameter can taper gradually or stepwise.
[00267] As shown in the embodiment illustrated in Figure 33, the cross-section adjacent to the second portion or end 828 may be larger than the cross-section near the first portion 826. The cross-sectional diameter of the elongated body 824 may increase from from a diameter that is less than an inner diameter of the lumen 830 of the needle member 120 to a diameter that is greater than the inner diameter of the lumen 830. Thus, the elongated body 824 can be inserted into the lumen 830 of the needle member 120 and advanced to a position where the cross section of the elongated body is approximately equal to the inside diameter of lumen 830, thereby further restricting the advancement of retainer 820 into lumen 830.
[00268] In some embodiments, the elongate body 824 may frictionally engage with the distal end 822 of the needle member 120. For example, the retainer 820 may have a bias fit to the needle member 120 to create a friction fit between the outer surface of the elongate body 824 and an inner surface of the lumen 830. This frictional engagement can be overcome by exerting a withdrawal force on the second portion 828 of the retainer 820, thereby advancing the retainer 820 out of the 830 lumen.
[00269] Although retainer 820 is illustrated as having a circular or diametrical cross-section, other cross-sections may also be used, such as triangular, square, rectangular, polygonal, star-shaped, or other similar profiles. In addition, the retaining device 820 can be made of steel. According to some embodiments, device 820 can only contact the interior of the needle bevel, and therefore advantageously does not affect the sharpness of the needle, which is guided by the outer edges of the needle.
[00270] The retaining device 820 can therefore ensure that the shunt 300 does not inadvertently fall or become exposed from the needle component 120. Such a device 820 can ensure that this shunt 300 is protected and undamaged during transport or handling insertion of the inserter or needle assembly. When the operator is prepared to implant the shunt 300, the retainer 820 can be removed from the needle member 120 and the procedure can be performed. Shunt Deployment Procedures
[00271] Figures 34A-39 illustrate various procedures that can be performed according to some of the embodiments disclosed herein. Such processes can allow an operator to position an exit end of an intraocular shunt within a lower pressure zone or region within the eye, leaving an entry end of the shunt in fluid communication with the anterior chamber of the eye. In some embodiments, a process for creating a space for the initial advancement of the distal end of a shunt into the eye, by insertion between a more superficial layer of the eye (eg, the conjunctiva or another layer, such as such as the intra-Tenon adhesion layer) away from a deep layer of the eye (eg, the sclera or another layer such as the intra-Tenon adhesion layer) into an efflux zone of the eye, can greatly facilitate initial placement and shunt advancement. Through such a procedure, the distal end of the shunt can be protected during advancement into the eye and the integrity of the shunt can be preserved. In contrast, previous methods in which a shunt was simply pushed into the eye (eg, into a subconjunctival, suprachoroidal, or sub-Tenon space) can often damage the shunt, by closing or breaking a distal portion of the shunt or causing the shunt to become twisted or bent due to the distal pressure force acting on the proximal end of the stent, while a distal end of the stent is being limited by the conjunctiva and is unable to move out of the needle.
[00272] For example, Figure 34A illustrates an eye 850 that has an anterior chamber 852, a cornea 854, sclera 856, conjunctiva 858, and intra-Tenon adhesion space or layer 860. Upon implantation of an intraocular shunt, a needle 870 of an inserter can be introduced through the cornea into the anterior chamber 852 and positioned adjacent to the angle of the anterior chamber 862. The needle 870 can comprise a bevel 872. The bevel 872 can be moved through of the anterior chamber 852 until the bevel 872 is positioned adjacent the angle of the anterior chamber 862. When in position, the bevel 872 can be rotated or oriented such that the bevel extends generally parallel to the conjunctiva 858.
[00273] For example, as shown in Figure 34A, the bevel 872 may be rotationally oriented such that a face of the bevel 872 or a plane through which the face of the bevel passes is aligned with or extends substantially parallel with respect to a plane or surface through which the conjunctiva 858 passes. Prior to or during advancement of needle 870 into sclera 856, the operator can visually verify and adjust a rotational orientation of bevel 872 until the bevel face is substantially parallel to the plane or surface of conjunctiva 858. When bevel 872 reaches the conjunctival interface - sclera or subconjunctival space (adjacent to conjunctiva 858), the bevel face may be positioned adjacent to, against, or substantially coincident with a conjunctival plane, as shown in Figure 34A.
[00274] After reaching the position illustrated in Figure 34A, the operator may rotate needle 870 until bevel 872 begins to push conjunctiva 858 away from sclera 856, as shown in Figure 34B. This procedure, which may be referred to as "tenting" the conjunctiva 858, can create a small space or gap between the conjunctiva and sclera adjacent to the bevel of the 870 needle. Since the 876 space was created by tenting the conjunctiva 858, a shunt 300 can be advanced into gap 876 of needle 870. As a result, shunt 300 can be substantially easier to push into gap 876 because conjunctiva 858 has been pushed away and is not immediately obstructing the advancement of shunt 300 in subconjunctival space.
Figures 34A-34C illustrate placement of a shunt using the tenting procedure into a subconjunctival space 876 superficial to the sclera 856. Figures 35A-35C illustrate another tenting procedure that can be performed using the same steps as in that the tenting procedure is illustrated and described in relation to Figures 34A-34C. However, the procedure illustrated in Figures 35A-35C is performed by tenting the conjunctiva 858 which is superficial to the intra-Tenon adhesion layer 860. As such, the needle 870 can be advanced at a different angle to that illustrated. in Figures 34A-34C such that bevel 872 of needle 870 passes through sclera 856 and exits sclera 856 until bevel 872 passes through a portion of intra-Tenon adhesion layer 860. needle 872 is located adjacent to the conjunctiva 858 above or superficial to the intra-Tenon adhesion layer 860, as shown in Figure 35A, the bevel 872 of needle 870 can be rotated to create a space 880 between the conjunctiva 858 and the layer of intra-Tenon adhesion 860. Subconjunctival space 880 can then provide a slit or opening that allows a distal end of shunt 300 to exit needle 870 without providing substantial resistance to distal advancement of shunt 300.
[00276] Similar to the tenting process modalities shown in Figures 34A-35C, 36A-36C illustrates a procedure for tenting adjacent layers of an efflux area of the eye. The procedure can be performed similarly to those described above. However, as shown in Figure 36A, needle 870 is advanced until bevel 872 reaches the interface between sclera 856 and intra-Tenon adhesion layer 860. Thereafter, bevel 872 can be rotated until adhesion layer intra-Tenon 860 is pushed away from sclera 856 to create a space 884 between intra-Tenon adhesion layer 860 and sclera 856. After this, as shown in Figure 36C, shunt 300 can be advanced into space 884.
[00277] In any of the above procedures, bevel 872 can be rotated between about 10° and about 60° in order to tenting a surface layer relative to a deep layer. However, the needle can be rotated between about 25° and about 135°, between about 50° and about 120°, and between about 70° and about 110°, and in some embodiments, about 90°. °. Thus, various procedures can be performed in which a space is created between a superficial layer, such as the conjunctiva or intra-Tenon adhesion layer, and a deep layer, such as the sclera or intra-Tenon adhesion layer. The space created between the surface and deep layers can be in any of a variety of locations relative to the anterior chamber 852. Thus, in performing procedures, the operator can judge the optimal location for the space based on the desired outflow area to be Reached.
[00278] While the procedures and Figures 34A-36C illustrate procedures for tenting a surface layer to a deeper layer, the processes illustrated in Figures 3739 illustrate processes where a surface layer can be separated from a layer. deep or through which a target efflux area can be increased in size to facilitate advancement of the shunt to the target efflux area without damaging the shunt or needing to overcome substantial resistance. These objectives are similar to those obtained using the procedures described above with respect to Figures 34A-36C.
[00279] Referring to Figure 37, a needle 870 is moved to a position similar to that shown in Figure 35A, wherein the bevel 872 is positioned just deep into the conjunctiva 858 (shown in Figure 35A as being superficial to the intra-adhesion layer. Tenon, bevel 872 can also be positioned superficial to the sclera alone). In the illustrated embodiment, bevel 872 may be positioned at an intersection, boundary, or interface of conjunctiva 858 and intra-Tenon adhesion layer 860. When bevel 872 is in position, fluid may be ejected from needle 870 in order to filling or inflating a space 890 between the conjunctiva and the intra-Tenon adhesion layer 860. As such, space 890 can be created and maintained such that a shunt can be advanced into space 890 to position an outflow end of the shunt within the 890 space, without causing damage to the shunt housing or otherwise obstructing the shunt's movement.
The fluid used to inflate a space, as described in some embodiments, may comprise a balanced salt solution ("BSS"), a viscoelastic material, water, or lidocaine, or equivalents thereof. For example, in modalities, a space created in the sub-Tenon (between the intra-Tenon bonding layer and the sclera) can be filled with a viscoelastic. Also, in some embodiments, a space created in the intraTenon bonding layer may be filled with water.
[00281] Similarly, Figure 38 illustrates a process in which a needle 870 is advanced until a bevel 872 is positioned within the intra-Tenon adhesion layer 860. When the bevel 872 is positioned within adhesion layer layers intra-Tenon 860, such as between surface and deep layers of the intra-Tenon 860 adhesion layer, fluid may be ejected from the 870 needle to result in expansion or swelling of the 860 intra-Tenon adhesion layer, increasing the spacing in a intra-Tenon 860 adhesion layer. For example, such swelling can decrease the density of the intra-Tenon 860 adhesion layer, causing adhesions (the structures that interconnect surface and deep layers of the intra-Tenon 860) adhesion layer to be further apart by increasing the spacing between adjacent adhesions or by stretching the adhesions to allow a distal end of the shunt to be advanced with reduced resistance than into an untreated area.
[00282] Yet another example of a procedure for creating a space between adjacent layers of a target region is shown in Figure 39. In this figure, a needle 870 has been advanced until the bevel 872 is positioned at an interface or between the intra-Tenon adhesion layer 860 and sclera 856. As illustrated, fluid can be ejected from needle 870 until a space 892 is created by inflating the interface between intra-Tenon adhesion layer 860 and sclera 856. Similarly To the other processes described above, space 892 can be used to provide an initial area through which the distal end of the shunt can be advanced so that the shunt is not damaged and does not experience significant resistance when being advanced into the area. of target efflux.
[00283] These processes, illustrated in Figures 34A-39, demonstrate various techniques by which an outflow space or outflow area can be arranged to receive an outflow end of a shunt so that the shunt is undamaged and/or the shunt experiences less resistance as it is being advanced to the target efflux area (compared to an untreated area). Other efflux regions, such as the suprachoroidal space, the intrascleral space, and others can be targeted using one or more of the techniques described herein. In addition, some of the techniques can be combined (eg, a surface layer can be mechanically tented by rotating the bevel and then inflated using fluid ejected from the needle). Other modifications and implementations of such methods may be performed by a person skilled in the art and are within the scope of the present invention.
[00284] The above description is provided to enable an individual of skill in the art to practice the various configurations described in this document. While the technology in question has been sufficiently described with reference to the various figures and configurations, it should be understood that these are for illustrative purposes only and should not be taken as limiting the scope of the technology in question.
[00285] There may be many other ways to implement the technology in question. Various functions and elements described in this document can be divided differently from how they were represented without departing from the scope of the technology in question. Various modifications to these configurations will be readily apparent to those skilled in the art, and the generic principles defined in this document can be applied to other configurations. Thus, many changes and modifications can be made to the technology in question, by an individual of common knowledge in the technique, without departing from the scope of the technology in question.
[00286] It is understood that the specific order or hierarchy of steps in the disclosed processes are an illustration of exemplary approaches. Based on design preferences, it is understood that the specific order or hierarchy of steps in the processes can be rearranged. Some of the steps can be performed simultaneously. The attached method claims the actual multi-step elements in a sampling order, and is not intended to be limited by the specific order and hierarchy presented.
[00287] As used in this document, the phrase "at least one of" preceding a series of articles, with the terms "and" or "or" to separate any of the items, modifies the list as a whole, rather than each member of the list (ie each item). The phrase "at least one of" does not require selection of at least one of each listed item; rather, the phrase allows for a meaning that includes at least one of any of the items, and/or at least one of any combination of the items, and/or at least one of each of the items. By way of example, the phrases "at least one out of A, B, and C" or "at least one out of A, B, or C" each refer to just A, just B, or just C; any combination of A, B and C; and/or at least one of each of A, B and C.
[00288] Terms such as "top", "bottom", "front", "rear" and the like as used in the present invention are to be understood as referring to an arbitrary frame of reference, rather than to the gravitational frame standard reference. Therefore, an upper surface, a lower surface, a boundary surface, and a back surface can extend up, down, diagonally, or horizontally in a gravitational frame of reference.
[00289] Furthermore, to the extent that the term "includes", "have" or the like are used in the specification or claims, it is intended to be inclusive in a similar way to the term "comprising", since "comprising" is interpreted, when used, as a transitional word in a claim.
[00290] The word "exemplary" is used in this document to mean "serving as an example, instance or illustration". Any modality described in this document as "exemplary" should not necessarily be interpreted as preferential or advantageous over other modalities
[00291] A reference to a singular element is not intended to mean "one and only one", unless this is specifically stated, but rather "one or more". Pronouns in masculine (eg yours) include feminine and neuter genders (eg she and yours) and vice versa. The term “some” refers to one or more. Underlined and/or italicized positions and subheadings are used for convenience only, are not limited to the subject technology, and are not referred to in connection with the interpretation of the subject technology description. All structural and functional equivalents to elements of the various configurations described throughout this description that are known or may become known to individuals of ordinary skill in the art are expressly incorporated herein by reference and are intended to be encompassed by the technology in question. Furthermore, nothing disclosed herein is intended to be dedicated to the public regardless of whether that description is expressly recited in the description above.
[00292] Although this document contains many details, these should not be interpreted as limitations on the scope of the technology in question, but rather as illustrations of different examples and aspects of the technology in question. It should be appreciated that the scope of application of the technology in question includes other modalities that will not be discussed in detail above. Various other modifications, alterations and variations can be made in the arrangement, operation and details of the method and apparatus of the subject technology disclosed herein, without departing from the scope of the present invention. Unless otherwise stated, reference to a singular element is not intended to mean "one and only one" unless explicitly stated, but is intended to mean "one or more". Furthermore, it is not necessary for a device or method to solve all the problems that are soluble (or possess all the achievable advantages) by different embodiments of the present invention, so as to be encompassed within the scope of the description. The use here of "may" and its derivatives is to be understood in the sense of "eventually" or "optionally", as opposed to an affirmative capacity.

权利要求:
Claims (17)
[0001]
1. Insertion device (100) for the treatment of glaucoma, characterized in that it comprises: a housing (102); a needle (120) that has a lumen; a plunger (122) movable within the lumen; a conductive component (160) comprising a cylindrical element being coupled to the needle (120) through a needle slot (174) and the plunger (122) through the plunger slot (172) to cause movement to the needle (120 ) and the plunger (122) along a longitudinal axis (178) of the inserter (100) upon rotation of the conductive component (160), the conductive component (160) comprising a sliding groove (170) which longitudinally overlaps with the minus one needle slot (174) or one plunger slot (172); and a sliding member (106) coupled to the housing (102) and slidable along the sliding slot (170) such that movement of the sliding member (106) along the longitudinal axis rotates the conductive member (160 ) within the housing (102) and results in movement of the needle (120) and plunger (122) along the longitudinal axis.
[0002]
2. Insertion device according to claim 1, characterized in that the conductive component (160) comprises a hollow cylindrical element.
[0003]
3. Insertion device according to claim 1, characterized in that the conductive component (160) comprises the piston groove (172), the piston groove (172) configured to engage with the piston (122) of so that upon rotation of the conductive member (160), the engagement results in movement for the plunger (122) along the longitudinal axis in response to a rotational movement of the conductive member (160).
[0004]
4. Inserter according to claim 1, characterized in that the conductive component (160) comprises the needle slot (174), the needle slot (174) configured to engage with the needle (120) of so that upon rotation of the conductive component (160), engagement results in movement for the needle (120) along the longitudinal axis in response to a rotational movement of the conductive component (160).
[0005]
5. Inserter according to claim 1, characterized in that it comprises a housing (102) having an interior cavity, wherein the conductive component (160) is supported within the cavity.
[0006]
6. Inserter according to claim 5, characterized in that the housing (102) comprises an elongated slit (110) extending from an outer surface of the housing (102) into the inner cavity, the sliding member (106) being slidable along the slot (110).
[0007]
7. Insertion device according to claim 5, characterized in that it comprises a locking member (526) configured to engage an external housing frame (102) to restrict movement of the sliding member (106) within the elongated slit (110).
[0008]
8. Insertion device according to claim 5, characterized in that it comprises a puller component coupled to a proximal end of the housing (102), the puller component being rotatably coupled to the conductive component (160) such that the rotation of the pulling component results in a rotational movement for the leading component.
[0009]
9. Insertion device according to claim 1, characterized in that the needle component (120) of the needle is coupled to a rotational adjustment component (370), the adjustment component (370) being coupled to a needle conductor (164) of a needle assembly (104), the adjustment member (370) being rotatable relative to the needle conductor (164) such that rotation of the adjustment member (370) alters a rotational alignment of the needle (120) with respect to the housing (102), wherein the adjustment member (370) is translatable along the longitudinal axis of the inserter (100) to correct rotational alignment of the needle (120) with respect to the housing (102).
[0010]
10. Insertion device according to claim 1, characterized in that the sliding slot (170) extends helically from a proximal portion towards a distal portion of the conductive component (160), the slot of the plunger (172) having (1) a first portion (232) which extends helically around the conductive member (160), and (2) a second portion (240) which extends circumferentially around the conductive member ( 160), the needle slot (174) having (i) a first portion (230) that extends circumferentially around the conductive member (160), and (ii) a second portion (242) that extends helically across around the conductive component (160).
[0011]
11. Inserter according to claim 10, characterized in that the second portion (240) of the piston groove (172) extends in a plane oriented substantially perpendicular to a longitudinal axis of the piston groove (172), and wherein the first portion (230) of the needle slot (174) extends in a plane oriented substantially perpendicular to a longitudinal axis of the conductive member (160).
[0012]
12. Insertion device according to claim 10, characterized in that the first portion (232) of the piston groove (172) extends helically from the second portion (240) of the piston groove (172) at a direction toward the proximal portion of the conductive member (160), and wherein the second portion (242) of the needle slot (174) extends helically from the first portion (230) of the needle slot (174) in a towards the proximal portion of the conductive component (160).
[0013]
13. Insertion device according to claim 10, characterized in that the hollow cylindrical element comprises two pieces (252, 254), attachable together, in which at least one of the sliding groove (170), the groove the plunger (172), or the needle slot (174) extends along both parts.
[0014]
14. Insertion device according to claim 10, characterized in that at least one sliding groove (170), the needle groove (174) and the plunger groove (172) extend along a half rotation. of the conductive component (160).
[0015]
15. The inserter of claim 10, characterized in that the first portion (230) of the needle slot (174) extends within a perpendicular plane substantially oriented to the longitudinal axis of the conductive member (160 ).
[0016]
16. Insertion device according to claim 1, characterized in that the first end of the sliding groove (170) is positioned in a proximal position on the conductive member (160) with respect to the plunger groove (172) and a the second end of the sliding groove (170) longitudinally overlaps the piston groove (172).
[0017]
17. Insertion device according to claim 1, characterized in that the sliding groove (170) longitudinally overlaps both the needle groove (174) and the plunger groove (172).

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法律状态:
2020-03-17| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

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2021-03-30| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

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2021-05-11| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 13/11/2014, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

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申请号 | 申请日 | 专利标题

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US201361904429P| true| 2013-11-14|2013-11-14|

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US61/904,429|2013-11-14|

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PCT/US2014/065515|WO2015073705A1|2013-11-14|2014-11-13|Intraocular shunt inserter|BR122020011777-0A| BR122020011777B1|2013-11-14|2014-11-13|Insertion device for the treatment of glaucoma|