• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    TRANSFORMER ASPIRATION/IRRIGATION POSITIVE. In various embodiments, a cannula device includes an irrigation manual portion portion (with a first aspiration tip for aspiration and an irrigation fluid outlet for irrigation) and a manual aspiration portion portion (configured to aspirate fluid into a second suction tip extending from a distal end of the manual suction portion portion). The cannula device is transformable between: (a) a coaxial mode in which the aspiration handpiece portion is coupled to the irrigation handpiece portion so that fluid is aspirated through the first aspiration tip and then of the second aspiration tip in series, and fluid irrigation is provided through the irrigation fluid outlet, and (b) a bimanual mode, in which the manual aspiration portion portion is separated from the irrigation manual portion portion for providing aspiration through the second aspiration tip, while the irrigation manual portion portion continues to supply the irrigation fluid through the irrigation fluid outlet.
    公开号:BR112015030230B1
    申请号:R112015030230-0
    申请日:2014-05-08
    公开日:2021-05-11
    发明作者:Charles Beauvais；G. Lamar Kirchhevel
    申请人:Alcon Inc；
    IPC主号:
    专利说明:

    Priority claim
    [0001] This application claims the priority benefit of US Provisional Patent Application Serial No. 61/831,665 entitled "Transformer Irrigation/Aspiration Device", filed June 6, 2013, whose inventors are G. Lamar Kirchhevel and Charles Kittridge Beauvias, incorporated herein by reference, in its entirety as if fully and completely set forth. FIELD OF THE INVENTION
    [0002] The present invention generally relates to surgical devices. More particularly, but not by way of limitation, the present invention relates to irrigation/aspiration devices. DESCRIPTION OF RELATED TECHNIQUE
    [0003] Cataract surgery may include removing an opaque natural lens and enveloping the cortex and replacing it with a clear artificial lens. Removing the natural lens can include using a powder, irrigating, vibrating the tip (for phacoemulsification and lens removal), followed by an irrigation tip and aspiration to remove the cortex.
    [0004] Predicate cortex removal devices include coaxial and bimanual devices. The one-handed, coaxial device may include an aspiration tip surrounded by an irrigation glove. Two-hand two-hand devices can include two separate instruments - one providing an irrigation cannula and the other an aspiration cannula. The coaxial device may include two tubing connections, one for supplying irrigation fluid and one for aspiration vacuum, while bimanual devices may include a tubing connection for irrigation fluid from the irrigation cannula device and a separate tubing connection for the vacuum in the cannula aspiration device. SUMMARY
    [0005] In various embodiments, a cannula device can be transformable between a coaxial mode and a bimanual mode by coupling (for coaxial) and dissociation (for bimanual) of a portion of the manual suction part and a portion of the manual irrigation part comprising the cannula device. In some embodiments, the irrigating manual portion portion and the suction manual portion portion may include interlocking elements for releasably engaging the distal end of the suction manual portion portion to the proximal end of the irrigation manual portion portion.
    [0006] In coaxial mode, the manual aspiration portion portion can be coupled to the irrigation manual portion portion, such that the fluid is aspirated into a main incision by a first aspiration tip, in the irrigation manual portion portion and then aspirated through a second suction tip into the hand suction portion portion (the second suction tip being located at least partially within the irrigation manual portion portion in fluid communication with the first suction tip). In coaxial mode, irrigation fluid can be supplied through an irrigation fluid outlet in the manual irrigation portion portion. In some embodiments, the irrigation fluid outlet may be a port in an irrigation sleeve coupled to a distal end of the hand portion of the irrigation handpiece. The irrigation sleeve may at least partially surround the first suction tip, extending from the portion of the irrigation handpiece.
    [0007] In bimanual mode, the manual aspiration portion portion can be dissociated from the irrigation manual portion portion to provide aspiration through the second aspiration tip (placed in a second incision) while the irrigation of the manual portion portion of continues to deliver irrigation fluid through the irrigation fluid outlet (in the main incision). In two-hand mode, the hand-irrigation portion cannot provide aspiration through the first aspiration tip.
    [0008] In some embodiments, the cannula device may also include a seal on a proximal end of the portion of the irrigation handpiece that is configured to receive the second aspiration tip when the handpiece portion of aspiration is coupled to the portion. of the manual irrigation part. In some embodiments, the seal is conical in shape and configured to fit within a portion of the distal portion of the hand-irrigation portion, such that the walls of the seal press against the inner wall of the hand-irrigation portion to inhibit fluid flow between the walls of the seal and the inner wall of the hand-irrigation portion. In some embodiments, the seal may include a sealing ring configured to press against the inner wall of the irrigation hand portion portion to inhibit fluid flow between the gasket and the inner wall of the irrigation hand portion portion. In some embodiments, the seal may be configured to inhibit the flow of aspiration fluid from the irrigation handpiece portion when the aspiration handpiece portion is removed from the irrigation handpiece portion. In some embodiments, the cannula device may also include a retainer for retaining the seal in the hand irrigating portion, as the hand suction portion portion is inserted and the hand portion irrigating portion withdrawn.
    [0009] In some embodiments, a suction tip of a portion of the manual suction part may be inserted into a seal in a portion of the manual irrigation part to place the suction tip of the manual suction part portion in fluid communication with an aspiration path of the irrigation manual part portion, such that fluid enters an aspiration tip in the irrigation manual part portion and passes through the interior of the irrigation manual part portion, to the aspiration tip of the manual part portion and then off the manual part of suction. When the tip is inserted, the suction handpiece portion can be coupled to the irrigation handpiece portion to form a coaxial handpiece portion. Coupling the suction manual portion portion to the irrigation manual portion portion may include twisting interlocking elements over the suction manual portion portion and the irrigation manual portion portion. After coupling, the coaxial handpiece portion can then provide aspiration through the aspiration tip in the irrigation handpiece portion and irrigation fluid through an irrigation fluid outlet in the irrigation handpiece portion. To place the cannula device in bimanual mode, the manual suction portion portion can be detached from the irrigation manual portion portion and the suction tip of the suction manual portion portion can be removed from the seal in the manual suction portion portion. irrigation to form two separate manual parts. Irrigation fluid can be supplied through the irrigation fluid outlet in the irrigation manual part portion while aspiration is provided by the aspiration tip in the aspiration manual part portion. In some embodiments, supplying irrigation fluid through the irrigation fluid outlet may include supplying irrigation fluid through a port on an irrigation sleeve coupled to a distal end of the portion of the irrigation handpiece (the irrigation sleeve can at least partially surround the suction tip in the hand-irrigation portion). BRIEF DESCRIPTION OF THE DRAWINGS
    [00010] For a more complete understanding of the present invention, refer to the following description, taken in conjunction with the accompanying drawings, in which:
    [00011] FIGs. 1a-c illustrate the cannula device in coaxial mode, according to an embodiment;
    [00012] FIG. 1d illustrates the cannula device in bimanual mode, according to an embodiment;
    [00013] FIG. 2a illustrates a cross section of the coupling part of the irrigation manual part, according to an embodiment;
    [00014] FIG. 2b illustrates a cross-section of an alternative embodiment of the coupling portion of the hand-irrigation portion;
    [00015] FIGs. 3a-g illustrate various embodiments of the check valve;
    [00016] FIGs. 4a-d illustrate the insertion of the snap-in retainer and non-return valve into an aspiration tube, according to an embodiment;
    [00017] FIG. 5 illustrates the suction tube with an outer sealing ring, according to an embodiment;
    [00018] FIGs. 6a-b illustrate the fit between the outer sealing ring of the suction tube and the inner wall of the outer casing of the irrigation handpiece, according to an embodiment;
    [00019] FIGs. 7a-d illustrate various views of the suction manual portion portion, according to an embodiment;
    [00020] FIG. 8 illustrates a flowchart of a method for assembling the cannula device, according to an embodiment;
    [00021] FIG. 9 illustrates a flowchart of a method for transforming the cannula device between coaxial and bimanual modes, according to an embodiment; and
    [00022] FIG. 10 illustrates the cannula device in bimanual mode, in accordance with an embodiment.
    [00023] It is to be understood that both the above general description and the following detailed description are only exemplary and explanatory and are intended to provide a further explanation of the present invention as claimed. DETAILED DESCRIPTION OF MODALITIES
    [00024] In some embodiments, an ophthalmic suction/irrigation cannula device 101 can support both a coaxial (one-hand) mode and a two-hand (two-hand) mode. Cannula device 101 can be configured to transform between a single coaxial handpiece (as shown in FIGs. 1a-c) and separate bimanual handpiece (as indicated in FIG. 1d). In both modes, irrigation fluid may be supplied (e.g., in a first incision in the eye) through the irrigation fluid outlet opening 129 in the sleeve 107 at the distal end 133 of the irrigation manual portion portion 103. In the mode coaxial, suction can be provided through the first suction tip 111 in the sleeve 107, suction while in bimanual mode, can be provided by the second suction tip 109 in a portion of the separate suction manual part 105 (e.g., inserted into a second incision in the eye). In some embodiments, suction cannot be provided through the first suction tip 111 while in two-hand mode. When the cannula device 101 is mounted for coaxial mode, the aspiration path can be through both the first and second aspiration tips in the series, with first aspiration tip 111 within sleeve 107 second aspiration tip 109 within the identifier of the cannula device (formed at least partially from the lining of the external irrigation handpiece 121). Fluid may initially enter a hole at the distal end 417 of the first aspiration tip 111, flow through the aspiration tube 117, be aspirated by the second aspiration tip 109 into the loop and then exit the device from the cannula 101 through the connector 115 at the end proximal 137 of the suction manual portion portion 105.
    [00025] In some embodiments, for bimanual operation, the cannula device 101 can be separated into the two manual parts (i.e. irrigation manual part 103 and aspiration manual part portion 105) by decoupling the aspiration manual part portion 105 of the irrigation handpiece portion 103 and by removing the aspiration handpiece portion 105 from the irrigation handpiece portion 103. For example, as seen in FIG. 1d, the suction manual portion portion 105 can be twisted to disengage guide 123 of the suction manual portion portion 105 from slot 125 in the irrigation manual portion portion 103 and then pulled axially into the separate suction manual portion portion. 105 of the irrigation manual portion portion 103. In some embodiments, cannula device 101 can be transformed into the two separate manual portions without adding, removing or changing the tubing connections or removing the sleeve 107. With portion portion of the portion of the manual aspiration portion 105 separate from the portion of the irrigation manual portion 103, second aspiration tip 109 then can be inserted through a secondary incision in the eye for aspiration (e.g., to allow removal of the subincision cortex). In some embodiments, cannula device 101 can be transformed back into a unitary hand portion portion for coaxial operation by coupling the suction hand portion portion 105 to the irrigation hand portion portion 103. For example, the second tip of the suction 109 of the suction manual part portion 105 can be inserted into the proximal end 131 of the irrigation manual part portion 103, and then the suction manual part portion 105 can be twisted so that the guide disengages 123 with a slot 125 to lock the manual suction portion portion 105 to irrigation manual portion portion 103. In some embodiments, guide 123 and groove 125 may be sized to provide a friction fit when suction manual portion portion 105 is twisted into hand portion portion. irrigation tube 103 to couple guide 123 and groove 125. Other engagement mechanisms are also contemplated (eg guide and snap groove configuration, fri tube tion of the tube fit together, etc.)
    [00026] As seen in FIG. 2a, in some embodiments, the check valve 201 in the irrigating manual portion portion 103 of the cannula device 101 can inhibit the outflow fluid from the irrigation manual portion portion 103 as the irrigation manual portion portion 103 and portion portion manual aspiration 105 are separate but may allow fluid communication through tip 109 when irrigation manual portion portion 103 and suction manual portion portion 105 are coupled together. In some embodiments, the sealing ring 203 can increase the prevention of suction fluid from flowing around the check valve 201 between the irrigation manual portion portion 103 and the suction manual portion portion 105 when the irrigation manual portion portion 103 and the manual suction part portion 105 are coupled together. In some embodiments, the check valve 201 and seal ring 203 may be elastomeric (e.g., made of a polymer). Other materials for the check valve and seal ring are also contemplated. In some embodiments, shallow grooves 213 in the inner wall of the outer irrigation hand-part liner 121 (eg, see FIG. 2a) may receive corresponding ribs 501 (See FIG. 5) in aspiration tube 117 for alignment and retention of aspiration. of tube 117 within the casing of the external irrigation handpiece 121 and to inhibit rotation of the suction tube 117 within the casing of the external irrigation handpiece 121. In some embodiments, the suction tube 117 may be smooth and does not include ribs 501 In some embodiments, the inner wall of the outer irrigation manual part liner 121 may be smooth (i.e., does not include shallow grooves 213) and the suction tube 117 may have a friction that fits with the inner walls of the part liner irrigation manual 121. For example, ribs 501 in suction tube 117 can be configured to squash against the inner walls of the lining of the irrigation manual part 121 like you Suction tube 117 is inserted to provide a secure friction that fits between the suction tube 117 and the liner of the irrigation handpiece 121.
    [00027] FIG. 2b shows an alternative embodiment of the irrigation handpiece portion 103 and the aspiration handpiece portion 105. FIG. 2b shows a different profile for check valve 201 with a base portion smaller than indicated in FIG. 2nd. As indicated in FIG. 2b, check valve 201 may include a seal ring 203 with a flat face on the side of the seal ring facing a corresponding flat face on the suction tube 117. Rounded portion of the seal ring 203 opposite away from the smooth face may be configured to press axially and seal against the suction hand portion 105 when the suction hand portion portion 105 is coupled to the irrigation hand portion portion 103.
    [00028] As seen in FIGs. 3a-b, in some embodiments, check valve 201 may be cone-shaped with opening 207 at the tip of check valve 201 to suction tip 109 through the passage. In some embodiments, the opening/tip interface can be comfortable, such that aspiration fluid is inhibited from flowing around aspiration tip 109 when aspiration tip 109 is inserted into opening 207. In addition, opening 207 can close or downsize when suction tip 109 is withdrawn to inhibit fluid flow through the reduced opening when suction tip 109 is not present. For example, as shown in FIG. 3c, opening 207 can be configured as a slit 207a in which both sides of slit 207a come together when suction tip 109 is withdrawn to prevent fluid from passing through opening 207. Aperture 207 can also include two through slits 207b as indicated in FIG. 3d. Other opening shapes are also contemplated (for example, opening 207 may be in the form of a small circular hole 207c as indicated in FIG. 3e). As can be seen from FIGs. 3f-g, in some embodiments, check valve 201 may include a small circular opening 207c with a hinged fin 301. Hinged tab 301 may be formed from a transverse slot 303 (transverse as seen in the cross section of FIGs. 3f- g). Hinged flap 301 can act as a valve flap very close to forming a seal when suction tip 109 is not present. The pressure of any fluid present in draft tube chamber 211 will also act to press hinge flap 301 closed. Aperture 207c may have a depth (as shown) to allow greater tolerance for the axial position of transverse slot 303.
    [00029] In some embodiments, the check valve 201 may include side walls that fit against the inner walls of the aspiration tube 117 within the portion of the irrigation manual part 103. The perfect fit between the side walls of the check valve 201 and the inner wall of suction tube 117 can inhibit the flow of suction fluid between valve 201 and the inner wall of suction tube 117. O-ring 203 can provide an additional barrier to fluid flow by inhibiting fluid flow between sealing ring 203 and the inner wall of suction tube 117. In some embodiments, sealing ring 203 and check valve 201 may be formed in one piece (in some embodiments, sealing ring 203 and check valve 201 may be separate pieces).
    [00030] In some embodiments, the snap-in retainer 205 can secure the sealing ring 203 and check the valve 201 in the manual irrigation part portion 103, the suction manual part portion 105 is separate from the irrigation manual portion portion 103 As can be seen in FIGs. 4a-b, during assembly, check valve 201 and seal ring 203 may be inserted into suction tube 117 followed by snap-in retainer 205 which may have guides 401 which fit into slots 403. As seen in FIG. 4c, in some embodiments, sub-grooves 405 may be sized for guides 401 by sliding up before tablatures 401, deforming slightly and then, as seen in FIG. 4d, snapping back into slots 403. As seen in FIG. 2a, once installed, snap-in retainer 205 may inhibit the removal of check valve 201 and seal ring 203. In some embodiments, snap-in retainer 205 may confine seal ring 203 or may be slightly spaced from the gasket 203. As per the alternative embodiment of FIG. 2b, check valve 201 cannot use snap-in retainer 205 (for example, the friction fit between the sealing ring 203 and the side walls of the casing of the external irrigation manual part 121 can keep valve 201 inside the casing of external irrigation 121 when manual suction part 105 is removed).
    [00031] As seen in FIG. 5, suction tube 117 may include an additional O-ring 119. As seen in Figs. 6a-b, the gasket 119 can provide a friction fit between the suction tube 117 and the external manual irrigation housing 121. As the gasket 119/suction tube 117 is inserted into the external manual irrigation housing 121 , the sealing ring 119 may compress internally and form a fluid-tight seal with a corresponding recess in the external hand irrigation compartment 121. In some embodiments, the fluid-tight seal may inhibit fluid from entering the portion of the hand irrigation portion. 103 of the existing proximal end connector 113 131 of the irrigation handpiece portion 103. Irrigation fluid may enter the irrigation handpiece portion 103 from the connector 113 and flow outside the aspiration tube 117 between the O-ring 119 and sleeve 107. Bars 407 (as seen in FIG. 4a) can space the distal end 415 of aspiration tube 117 from the inner walls of the manual compartment d. and external irrigation 121 to form a channel for the irrigation fluid. Irrigation fluid may then flow through opening 411 and around suction tip 111 which is screwed onto distal end 415 of suction tube 117. Sleeve 107 may engage or screw into edge 409 of external manual irrigation housing 121 and receiving irrigation fluid from connector 113. The irrigation fluid may then leave sleeve 107 through an irrigation fluid outlet (e.g., port 129).
    [00032] As seen in FIGs. 7a-d, the aspiration handpiece portion 105 may form a separate handpiece portion dedicated to aspiration for a second incision. Liquid can enter suction tip 109 through suction port 701 (both during bimanual and coaxial mode). The suction tip 109 on the suction manual portion portion 105 is shown curved, but other shapes are also contemplated (e.g. straight line, angled, etc.) In some embodiments, as seen in FIG. 2a, the curved suction tip 109 can be curved or angled to reach various anatomical structures in the eye. In some embodiments, the curved suction tip 109 may also be curved or angled towards a lower wall of the suction tube 117 to more easily reach the suction fluid being drawn into the suction tube chamber 211 (however, the device cannula 101 will also work in coaxial mode with a straight suction tip 109). In some embodiments, the suction tube chamber 211 may have a larger diameter than a front portion of the suction tube 117 to allow the suction fluid to create a reserve in the second suction tip 109 (when the coaxial handpiece is used at an angle) to be aspirated out of the second aspiration tip 109 when the cannula device 101 is in coaxial mode. A vacuum may be provided in aspiration tube 117 through aspiration tip 109 when cannula device 101 is in coaxial mode.
    [00033] In some embodiments, the suction tip 111 may include a sleeve 107 (such as a polymer sleeve) coupled to (e.g., overmolded, screw-on, adhesive bonded, etc.) to a needle (by example, a stainless steel cannula). Other materials for the sleeve 107 and needle are also contemplated. As can be seen in FIG. 1b, aspiration tip 111 may include a straight needle. As can be seen in FIG. 1c, the suction tip 111 and the sleeve 107 can be curved. In some embodiments, as seen in FIG. 1c, the suction tip 111 and the sleeve 107 can be bent in an opposite direction (i.e., in a far-pointing direction) from one side of the portion of the irrigation handpiece 103 with the irrigation connector 113 as the connector irrigation tube 113 will likely extend on top of a surgeon's grip and the opposite curve of aspiration tip 111 and sleeve 107 will utilize the "free" surgical space below the portion of the irrigation manual portion 103 ("free" in the sense that the space is not obstructed by the inlet irrigation line). As can be seen in FIG. 1d, aspiration tip 109 may also include a curved needle. Other needle shapes for suction tip 111 and suction tip 109 are also contemplated (eg angled, straight, etc.) Likewise, other sleeve shapes for sleeve 107 are also possible (eg. angular, straight, etc.) In some embodiments, the needle for suction tip 111 may be simple or be overmolded by a polymer coating. In some embodiments, the aspiration tip needle 109 may be simple or may be overmolded by a polymer coating.
    [00034] As seen in FIG. 2a, in some embodiments, the tube connections for the portion of the irrigation handpiece 103 may include a number of medical luer fittings. For example, the tube connection 113 may include a female Luer lock, as shown in FIG. 2a (eg to couple to male connector 209). The tube connections to the suction handpiece 105 may also include a number of medical luer fittings (e.g. male luer 115 at the proximal end 137 of the suction handpiece portion 105 to the female connector 127). Other types of connection are also contemplated (for example, as seen in Fig. 2b, connector 113 may be a female connector). Connector 113 can be configured to receive an irrigation line at an angle β (eg β can be approximately in the range of 10 degrees to 25 degrees) to reduce curves in the irrigation line (which can inhibit fluid flow) and make the aspiration handpiece portion 105 or irrigation handpiece portion 103 easier to hold in the hand). Other angles β are also contemplated (for example, β can be approximately in a range of between 5 degrees and 90 degrees). In some embodiments, the suction luer 115 for suction may be at the end of the manual suction portion 105 (other locations for the luer 115 are also possible). Other pipe connections for the irrigation inlet and suction outlet are also contemplated (eg friction fit, adhesives, etc.)
    [00035] FIG. 8 illustrates a flowchart for a method of assembling the cannula device 101. Elements provided in the flowchart are illustrative only. Several elements provided may be omitted, additional elements may be added, and/or several elements may be performed in a different order than provided below.
    [00036] At 801, the suction tip 111 can be coupled to the distal end 415 of the suction tube 117. For example, the suction tip 111 can be screwed into an opening in the suction tube 117.
    [00037] At 803, the check valve 201 can be inserted into the proximal end 413 of the suction tube 117 until the sealing ring 203 of the check valve 201 abuts a recessed feature 419 of the suction tube 117.
    [00038] On 805, snap-in retainer 205 can be inserted behind check valve 201 until one or more tabs 401 on snap-in retainer 205 fit into receiving holes 403 on suction tube 117. other attachment mechanisms for snap-in retainer 205. For example, snap-in retainer 205 can be attached to suction tube 117 via an adhesive, a friction fit, etc. In some embodiments, snap-in retainer 205 cannot be used (for example, as seen in the embodiment depicted in FIG. 2b).
    [00039] At 807, the assembled suction tube 117 can be inserted into the external manual irrigation compartment 121 until the sealing ring 119 on the suction tube 117 abuts the recessed feature 601 inside the external manual irrigation compartment 121. In some embodiments, bars 501 may be aligned with receiving grooves 213 within external manual irrigation compartment 121.
    [00040] At 809, the suction tip 109 can be coupled to the distal end 135 of the suction manual part portion 105. For example, the suction tip 109 can be screwed into receiving threads in the suction manual part portion 105.
    [00041] At 811, the manual suction tip 109 can be inserted into the check valve 201 at the proximal end 131 of the manual irrigation portion portion 103. As seen in FIGs. 3c-3e, check valve 201 may include opening 207 to allow manual suction tip 109 to pass through check valve 201.
    [00042] At 813, the suction manual portion portion 105 can be coupled to the irrigation manual portion portion 103. For example, the end of the suction manual portion portion 105 can be inserted into the proximal end 131 of the portion portion manual irrigation portion 103 and then rotated to engage tab 123 in manual suction portion portion 105 with slot 125 in manual irrigation portion portion 103. In some embodiments, manual irrigation portion portion 103 may have tab 123 and the suction hand-part portion 105 may have slits 125. Other coupling techniques are also possible (e.g. a friction fit between the irrigation hand-part portion 103 and the suction hand-part portion 105).
    [00043] The elements of flowchart 801-813 can also be reversed to disassemble the cannula device 101. The assembly/disassembly can allow parts or all of the cannula device 101 to be cleaned and/or sterilized in order to be reusable. In some embodiments, parts of the cannula device 101 can be reused, while other parts (e.g., suction tips 109 and/or 111) can be discarded between uses (with new tips installed for each subsequent use). In some embodiments, the entire cannula device 101 may be disposable. In some embodiments, the entire cannula device 101 may be reusable.
    [00044] FIG. 9 illustrates a flowchart for a method of using the cannula device 101. Elements provided in the flowchart are illustrative only. Several elements provided may be omitted, additional elements may be added, and/or several elements may be performed in a different order than given below.
    [00045] At 901, the cannula device 101 mounted in the coaxial mode can be inserted into the first incision 1001 in the eye (eg see incision 1001 in FIG. 10).
    [00046] At 903, irrigation can be provided through the sleeve 107, and aspiration can be provided through the aspiration tip 111 of the cannula device 101.
    [00047] At 905, the second incision 1003 can be made in the eye.
    [00048] At 907, the suction manual part portion 105 can be decoupled from the irrigation manual part portion 103. For example, as seen in FIG. 1d , the suction manual portion portion 105 can be twisted to disengage guide 123 in the suction manual portion portion 105 from the slot 125 in the irrigation manual portion portion 103 and then axially pulled to separate the portion portion. suction manual portion 105 of the irrigation manual portion portion 103. In some embodiments, the suction manual portion portion 105 may be removed from the irrigation manual portion portion 103, while the sleeve 107 and tip 111 remain incised. 1001. In some embodiments, the sleeve 107 and tip 111 may be withdrawn from incision 1001 prior to removing the suction handpiece portion 105 from the irrigation handpiece portion 103.
    [00049] At 909, the tip 109 of the manual aspiration portion 105 can be inserted into a second incision 1003 in the eye.
    [00050] At 911, as irrigation continues through the irrigating manual portion portion 103 through the sleeve 107, aspiration may be provided through the tip 109 of the aspirating manual portion portion 105 in a second incision 1003.
    [00051] At 913, the tip of the manual suction part 109 can be removed from the second incision 1003 in the eye.
    [00052] At 915, the tip of the suction handpiece 109 can be inserted into the check valve 201 at the proximal end 131 of the irrigation handpiece portion 103.
    [00053] At 917, the suction manual portion portion 105 may be coupled to the irrigation manual portion portion 103. In some embodiments, the suction manual portion portion 105 may be coupled to the irrigation manual portion portion 103, while sleeve 107 and tip 111 remain in incision 1001. In some embodiments, sleeve 107 and tip 111 may be withdrawn from incision 1001 prior to coupling the suction handpiece portion 105 to the irrigation handpiece portion 103.
    [00054] Various modifications can be made to the modalities presented by an individual skilled in the art. Other embodiments of the present invention will be apparent to persons skilled in the art considering the present specification and practice of the present invention disclosed herein. It is intended that the present descriptive report and examples be regarded as examples only with a true scope of the spirit of the invention being indicated by the following claims and equivalents thereto.
    权利要求:
    Claims (11)
    [0001]
    1. Cannula device (101) characterized in that it comprises: a portion of the irrigation handpiece (103) comprising a first aspiration tip (111) configured to provide aspiration and an irrigation fluid outlet configured to provide a irrigation fluid; a portion of the suction manual portion (105) comprising a second suction tip (109) configured to provide suction, the second suction tip extending from a distal end of the suction manual portion portion; wherein the cannula device (101) is transformable between: a coaxial mode in which the manual aspiration portion (105) is coupled to the irrigation manual portion portion (103) so that fluid is aspirated through the first. suction tip (111) and then the second suction tip (109) in series and the irrigation fluid is supplied through the irrigation fluid outlet (129), and a bimanual mode, in which the part portion The manual suction part (105) is separated from the portion of the manual irrigation part (103) to provide aspiration through the second suction tip (109), while the manual irrigation part continues to supply the irrigation fluid through the fluid outlet. irrigation, but not aspiration through the first aspiration tip (111).
    [0002]
    2. Cannula device according to claim 1, characterized in that the irrigation fluid outlet is a port (129) in an irrigation sleeve (107) coupled to a distal end (133) of the portion portion irrigation handpiece (103), wherein the irrigation sleeve (107) at least partially surrounds the first suction tip extending from the portion of the irrigation handpiece (103).
    [0003]
    3. Cannula device according to claim 1, characterized in that it further comprises a seal at a proximal end (131) of the portion of the manual irrigation part (103), wherein the seal is configured to receive the second suction tip (109) when the suction hand portion portion (105) is coupled to the irrigation hand portion portion (103).
    [0004]
    4. Cannula device according to claim 3, characterized in that the seal is cone-shaped and is configured to fit within a distal portion of the portion of the manual irrigation part (103) so that the walls seals press against an inner wall of the irrigation handpiece portion (103) to inhibit fluid flow between the seal walls and the inner wall of the irrigation handpiece portion (103).
    [0005]
    5. Cannula device according to claim 3, characterized in that the seal comprises an O-shaped sealing ring (203) configured to press against an inner wall of the portion of the irrigation manual part (103) to inhibit fluid flow between the gasket and the inner wall of the hand-irrigation portion.
    [0006]
    6. Cannula device according to claim 3, characterized in that the seal is configured to inhibit the flow of aspiration fluid out of the manual irrigation part portion (103) when the aspiration manual portion portion (105) is removed from the portion of the irrigation handpiece.
    [0007]
    7. Cannula device according to claim 1, characterized in that it further comprises a retainer (205) for retaining the seal in the manual irrigation portion portion (103) as per the manual suction portion portion (105) is inserted into and removed from the portion of the manual irrigation part.
    [0008]
    8. The cannula device of claim 1, characterized in that the manual irrigation portion portion (103) and the manual aspiration portion portion (105) include interlocking elements to releasably couple the end distal end of the suction handpiece portion to a proximal end of the irrigation handpiece portion.
    [0009]
    9. Cannula device according to claim 1, characterized in that the portion of the irrigation manual part (103) further comprises an irrigation connector (113) configured to couple to an irrigation line supplying the irrigation fluid. irrigation to the portion of the irrigation handpiece, and wherein the first aspiration tip (111) is curved in a direction that points away from one side of the portion of the irrigation handpiece comprising the irrigation connector.
    [0010]
    10. Cannula device according to claim 1, characterized in that both the first and second suction tips (109, 111) are curved.
    [0011]
    11. Cannula device according to claim 1, characterized in that the portion of the manual irrigation part (103) further comprises a sleeve (107) having a distal end and a proximal end, wherein the proximal end is coupled to the portion of the hand irrigation part (103) and wherein the irrigation fluid exits the sleeve through the distal end, and wherein, in coaxial mode, the first suction tip (111) extends to the distal end of the infusion sleeve (107).
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    KR200488954Y1|2019-04-09|Drainage set of medical suction unit
    JP2021505333A|2021-02-18|Multi-lumen lure connector
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    TWI565493B|2017-01-11|Needleless access connectors and valve elements therefor
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    同族专利:
    公开号 | 公开日
    PL2986331T3|2019-04-30|
    BR112015030230A2|2017-07-25|
    CA2912530C|2021-04-20|
    DK2986331T3|2019-02-18|
    JP6438015B2|2018-12-12|
    TW201507712A|2015-03-01|
    KR20160016824A|2016-02-15|
    WO2014197161A1|2014-12-11|
    KR102240262B1|2021-04-14|
    TR201900982T4|2019-02-21|
    CN105263539A|2016-01-20|
    US9839738B2|2017-12-12|
    CN105263539B|2017-08-29|
    PT2986331T|2019-02-01|
    RU2015156059A|2017-07-13|
    EP2986331B1|2018-10-24|
    US20140364799A1|2014-12-11|
    JP2016523610A|2016-08-12|
    AR096519A1|2016-01-13|
    RU2667184C2|2018-09-17|
    TWI611800B|2018-01-21|
    MX2015016649A|2016-04-04|
    PH12015502624A1|2016-03-07|
    ES2708357T3|2019-04-09|
    CA2912530A1|2014-12-11|
    RU2015156059A3|2018-03-06|
    AU2014275381A1|2015-12-03|
    EP2986331A4|2016-05-25|
    AU2014275381B2|2018-08-09|
    EP2986331A1|2016-02-24|
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    法律状态:
    2018-11-13| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-03-10| B25A| Requested transfer of rights approved|Owner name: ALCON INC. (CH) |
    2020-03-31| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-03-30| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-05-11| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 08/05/2014, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201361831665P| true| 2013-06-06|2013-06-06|
    US61/831,665|2013-06-06|
    PCT/US2014/037293|WO2014197161A1|2013-06-06|2014-05-08|Transformer irrigation/aspiration device|
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