巴西专利BR112015023666A2 iris expander

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专利摘要:
iris expander summary. It is an iris expander that is provided that includes a non-metallic, unitary, multithreaded body that is expandable from a first state to a second state. the second state defines a larger coverage area than the first state with the body being defined by a plurality of hinged segments. In an additional aspect, an iris expander is provided that includes a multithreaded body that is expandable from a first state to a second state with a larger coverage area. at least one aperture is formed in the body with a channel extending therethrough incorporated into the body such that no part thereof is externally exposed from the body. The channel is formed to accommodate a portion of an instrument for body adjustment to prevent direct contact of the instrument with iris tissue.
公开号:BR112015023666A2
申请号:R112015023666
申请日:2014-03-17
公开日:2020-03-10
发明作者:M Cote Dana；J Hughes James
申请人:Beaver Visitec Int Us Inc；
IPC主号:

专利说明:

“IRIS EXPANDER”.
Fundamentals of the Invention [001] In order to minimize intra and postoperative complications of cataract surgery, a surgeon must have the best possible view of intraocular tissue. There may be occasions when a small pupil is found, such as with pseudoexfoliation, posterior synechia, the use of miotics or uveitis.
[002] If the pupil is not properly dilated for cataract extraction, there is a risk of: damage to the iris; incomplete aspiration of lens fragments and cortical material; damage to the posterior capsule; compromised capsulorhexis; vitreous loss; and nucleus fallen into the vitreous cavity.
[003] An increase in the incidence of intraoperative flaccid iris syndrome, or IFIS, has been observed. The results cited from a retrospective and prospective study indicate that IFIS is found approximately 2% of the time. (Chang, DF, Campbell J.R., Intraoperative Floppy Iris Syndrome Associated With Tamsulosin, J. Cataract Refract. Surg. 2005; 31: 664 to 673). Most affected patients were taking alpha 1 blockers, such as tamsulosin (Flomax), to treat benign prostatic hyperplasia. Alpha 1 blockers can cause the iris dilator muscle to relax, which makes pupil dilation difficult.
[004] Treatments prior to cataract extraction may include: a pharmacological approach (NSAID’s, preservative-free epinephrine, viscoelastic substances); mechanical manipulation (iris hooks / retractors, iris rings / dilators); and iris surgery.
Summary of the Invention [005] In a first aspect of the present invention, an iris expander is provided that includes a non-metallic, unitary, multisegmented body that is expandable from a first state to a second state. The second state defines
2/11 a space larger than the first state with the body being defined by a plurality of segments connected by hinges. Advantageously, with the present invention, an iris expander can be introduced discreetly into a patient's eye and expanded into it.
[006] In another aspect of the present invention, an iris expander is provided, which includes a multi-segmented body that is expandable from a first state to a second state. The second state defines a coverage area larger than the first state. At least one opening is formed in the body with a channel extending from there to a part of the body with the channel being incorporated in the body, such that no part of it is exposed externally to the body. The channel is formed to accommodate a part of an instrument for adjusting the body. Advantageously, with the present invention, an iris expander can be provided, which can be adjusted by an instrument to avoid direct contact of the instrument with the iris tissue.
[007] These and other characteristics of the invention will be better understood through a study of the detailed description below and the accompanying drawings.
Brief Description of the Drawings [008] Figure 1 shows an iris expander formed in accordance with the present invention;
[009] figure 2 shows the iris expander of figure 1 in a flattened state;
[010] figure 3 shows the lobes that can be used with the present invention;
[011] figures 4 to 6 are different views of an additional iris expander formed according to the invention;
[012] figures 4A and 4B show different channel configurations that can be
3/11 be used with the present invention;
[013] figures 7 to 10 are different views of the iris expander of figures 4 to 6 in a flattened state;
[014] figures 11 to 13 are different views of an additional iris expander formed according to the invention;
[015] figures 14 to 16 are different views of an iris expander similar to the iris expander of figures 11 to 13, but with lobes in the shape of a frame, in a flattened state;
[016] figures 17 to 19 are different views of an additional iris expander formed according to the invention;
[017] figure 20 shows the iris expander of figures 17 to 19 in a flattened state; and [018] figures 21 to 29 show various aspects of the introduction and use of an iris expander formed in accordance with the present invention.
[019] Detailed description of the invention [020] With reference to the figures, an iris expander 10 is provided, which includes a body 12 which is expandable from a first flattened state to a second expanded state. Body 12 defines a larger coverage area in the second state than in the first state. The expansion of the body 12 allows the introduction of the iris expander 10 in a discrete state and the expansion in situ to expand an iris for an ophthalmic process, such as cataract extraction, and the maintenance of that expanded state for the duration of the process. After the procedure, the iris expander 10 can be flattened and removed.
[021] In a first embodiment, the body 12 is multi-segmented and defined by a plurality of segments 14 connected by hinges 16. With this arrangement, the body 12 can be uniquely formed from materials
4/11 non-metallic, such as polymeric materials that include, but are not limited to, thermoplastic elastomers, and combinations thereof (for example, thermoplastic / elastomer copolymers). Body 12 needs to be biocompatible and sterilizable. With the hinges 16, the segments 14 can rotate with respect to each other to allow the body 12 to be initially prepared in the first state and then expanded into the second state. The hinges 16 provide pivot points and / or relief points to facilitate the elastic deformation of the segments 14, when they are in the first state.
[022] The hinges 16 can be formed by cutting sections of the body 12 in order to define isthms between the adjacent pairs of the segments 14. The hinges 16 can be formed by the initial formation (for example, molding) of the body 12, so to have thin flexible profiles and / or can be prepared by secondary manufacturing processes that allow material removal (eg, cutting) to define the cutting sections. The hinges 16 are flexible enough to allow reversible flexing of the hinges by allowing angular rotation between two adjacent segments 14 on the joint hinge 16.
[023] Based on material selection and / or manufacturing technique for body 12, body 12 can be adapted to be manually expandable (for example, where body 12 is made of thermoplastic material (for example, polypropylene) ) or to be self-expanding (for example, where the body 12 is formed of elastomeric or elastomeric / thermoplastic material (for example, elastomeric polyurethane)). Where the body 12 is adapted to be manually expandable, the hinges 16 need not be provided with any inherent memory or other deviations for the expansion of the body 12. Instead, as described below, manual force can be applied to the body 12 to achieve expansion. Hinges 16 can be formed rigidly enough to remain in a state once pushed into that position (for example,
5/11 remain in certain states with body 12 in the second expanded state). This allows the body 12 to be in a fixed state, such as the second state. Alternatively, when the body 12 is adapted to be self-expanding, the hinges 16 may include the inherent memory, so as to have an internal deviation towards the second expanded state. This memory can generate a force that drives the hinges 16 to the expanded state. This force will also act in segments 14. A sufficient force must be generated, not only to cause the expansion of the body 12, but also to overcome any resistance force of the iris in causing the expansion of the same. In addition, the inherent memory will transmit a force to the hinges 16 to keep the hinges 16 in the expanded state. Preferably, the body 12 is initially formed in the second expanded state, where self-expansion is desired.
[024] The body 12 is formed as a closed circuit that is intended to engage the margin of the iris with at least the parts, preferably the entire outer perimeter, when its state is expanded. The body 12 can be of various shapes, including elliptical (for example, circular) or polygonal (for example, square). It is preferable that the segments 14 and the hinges 16 extend continuously over the length of the body 12, without any interruptions in order to prevent any part of the iris from extending through the body 12. It is further expanded that the body 12 is, in general, plan with the expansion from the first state to the second state that occurs in a single expansion plan.
[025] It is known that an iris of 5.0 mm or less may require expansion to allow correct visual access into the eye during an ophthalmic procedure. It is preferred that the coverage area of the body 12 in the second state, as defined by the outer lateral surface 29 of the body 12 (figures 4, 4A, 4B) defines a diameter of at least 6 mm, more preferably at least 7 mm.
[026] With reference to the figures, segments 14 can be supplied in
6/11 different lengths and shapes to provide the desired first and second states of the body 12. The body 12 in the second state can generally have a circular shape. In a variant, as shown in figures 1 and 2, eight hinges 16 can be provided, which separate the body 12 into eight of the segments 14, the segments 14 are not of equal length. As shown in figure 2, the primary segments 14A are each provided in an arcuate manner, with the primary segments 14A being positioned to curve outwards from each other with the body 12 being in the first state. The remaining segments 14 are configured to be located within segments 14A with the main body 12 being in the first state. As a non-limitative example, four secondary segments 14B can be provided, each, in general, of the same length with one of the secondary segments 14B extending from each end of the primary segments 14A. Two tertiary segments 14C are provided, each connecting a pair of secondary segments 14B. With this arrangement, as shown in figure 2, the secondary segments 14b and the tertiary segments 14C can be folded and maintained within the primary segments 14a, as shown. The lobes 18 formed on the body 12 must be configured to minimally, if not completely avoid, the complete flattening of the body 12, especially when the lobes 18 are located inside at least some of the segments 14 with the body 12 in the first state. Thus, the lobes 18 formed in the tertiary segments 14C must be shaped so as not to inhibit the total collapse of the secondary segments 14B within the primary segments 14a.
[027] With reference to figures 4 to 19, the body 12 can be formed with the segments 14 having equal lengths. Figures 4 to 10 show the body 12 which has eight hinges 16 that separate the body 12 into eight segments 14. Alternatively, as shown in figures 11 to 19, the body 12 can be formed with
7/11 four hinges 16 that separate the body 12 into four segments 14.
[028] The locations of the hinges 16 and the lengths of the segments 14 will affect the configuration of the body 12 in the first state. Figure 2, discussed above, provides a first state that is expandable to the outside along two Cartesian axes (represented in figure 2 by X and the arrows Y). Figures 7 to 10, 11 to13 and 14a16 each show the body 12 in a first state, which is expandable outwardly along a Cartesian axis (represented in Figure 7 by arrows X). Here, the body 12 is flattened on two hinges 16, which can be opposed, to define the first and second ends 32, 34. The lobes 18 are located externally to all segments 14. The body 12 can be shortened along the Cartesian axis perpendicular during the expansion (represented in figure 7 by the arrows Y) with this configuration. The hinges 16 can be located at various midpoints between the first and second ends 32, 34 according to the lengths of the corresponding segments 14. When the segments 14 are of equal length, the hinges 16 will generally be located in the center between the first and second ends 32, 34. Hinges 16 not located at ends 32, 34 can act as relief points to facilitate the elastic deformation of segments 14 in the first state. This allows the segments 14 to have natural arcuate forms at rest in the second state, and still be deformed, in general, in straight forms with the body 12 in the first state. The release of the segments 14 of the deformed straight states to their natural states at rest can confer expansion force on the body 12 where self-expansion is desired.
[029] One or more of the lobes 18 can be provided on the body 12 to extend over a part of the iris during implantation and / or expansion of the iris expander 10. A plurality of lobes 18 can be spaced around the
8/11 body 12 at equal intervals along a single end of body 12, such as the first end 24 of body 12. The lobes 18 are positioned so that a part of the iris is received adjacent to it. This provides a positioning function for the iris expander 10 in relation to the iris and additional stability when expanding the body 12 and holding the body 12 in the expanded state.
[030] With reference to figure 3, the lobes 18 can be provided along both the first end 24 and the second end 26 of the body 12. The lobes 18, on the first and second ends 24, 26 can be aligned around from the perimeter of the body 12, so as to form U-shaped pockets 28 directly between a pair of lobes 18 located above and below. Pockets 28 can receive parts of the iris. Alternatively, with reference to figures 4 to 6, the lobes 18 can be spaced at equal intervals over each of the first end 24 and the second end 26, but out of phase between the first and second end 24, 26 so that the lobes 18 protrude alternately from opposite edges 24, 26 over body 12. This arrangement provides upper and lower stabilization without defining pockets 28.
[031] The lobes 18 can be formed in a solid way (figure 3), in order to be continuous or in the form of a frame (figure 14) with the parts of it being opened. In addition, lobes 18 can be located centrally (figure 4), or off center (figure 17) in segments 14. This allows different positions of lobes 18 with body 12 in the first state, as shown in the comparison of the figures 14 to 16 and in figure 20.
[032] As shown in figure 3, one or more of the lobes 18 may include an opening 20 from which a channel 22 extends. The channel 22 is formed to accommodate a part of an instrument for positioning the body 12 and / or cause the body to expand 12. The channel 22 can be blind or it can extend through the respective lobe 18 to a second opening 30 in order to be exposed outside
9/11 of the adjacent segment 14. If the lobes 18 have a frame shape, the instrument can be inserted in an open part of it.
[033] In a second embodiment of the invention, and with reference to figures 4 to 19, channel 22 is located to extend through one of the segments 14 with the opening 20 being exposed at the first end 24 of the body 12 along the segment corresponding 14. In this way, channel 22 is incorporated into segment 14 with no part of it being exposed externally of body 12, as shown schematically in figures 4A and 4B. The channel 22 is completely spaced inwards from both the inner side surface 27 and the outer side surface 29 of the body 12. This arrangement locates an instrument received in channel 22 outside the axial alignment with the iris tissue. The channel 22 can be blind (figure 4A) or it can extend to the second opening 30 (figure 4B), which is exposed externally on the second end 26. With this arrangement, an instrument involved in the channel 22 is located within the margin of the iris. Thus, even with the instrument extending through the second opening 30, the instrument is not in direct contact with the iris. Preferably, the channel 22 extends along a longitudinal axis that is transversal to the expansion plane. In addition, a plurality of channels 22 can be provided in the body 12, each with a corresponding opening 20. The channel 22 can be evenly spaced over the body 12. In addition, one of the lobes 18 can be located adjacent to each of the channels 22. This allows for the stabilization of additional tissue at potential sites of application of the expansion force.
[034] With regard to the second modality, the positioning of channel 22, entirely within the body 12, can be used with various configurations of the body 12, as described above in relation to the first modality. The body 12 can be multisegmented, with a plurality of segments 14. However, the
10/11 hinges 16 are not necessary for the second embodiment of the invention; several hinges and other connections between segments 14 can be used. In all other respects, the second modality can be practiced in the same way as in the first modality.
[035] With reference to figures 21 to 29, the various aspects of the introduction and use of the iris expander 10 are shown. Although a specific shape of the body 12 is shown, it is to be understood that the body 12 can be formed by any configuration discussed herein, including both the first and second embodiments. With reference to figure 21, an incision of the cornea 36 is initially made in the eye of a patient to be treated. A typical corneal incision can be used for cataract extraction. The iris expander 10 is introduced into the eye with the body 12 being in the first flattened state. With the iris expander 10 being manually expandable, forceps F or other instruments can be used to insert the iris expander 10 through the corneal incision 36 and locate the iris expander 10 within the iris I. Subsequently, the iris expander 10 is positioned so that the edge of the iris is aligned with at least part of the lobes 18 (figure 23). One or more instruments, such as H hooks (for example, Sinskey hooks) can be used to correctly position the iris expander 10 (figure 24). Secondary incisions 38 in the cornea can be used as needed. Preferably, as shown in figure 25, the iris expander 10 is expanded manually by applying force in opposite directions, in general. As shown here, certain segments 14, such as primary segment 14A, may first be extended externally. This partial expansion of iris expander 10 allows partial expansion of iris I. Then, the remaining parts of body 12 can be expanded, as shown in figure 26. This continues until complete expansion of iris expander 10 is achieved . Once fully expanded (figure 28), an ophthalmic procedure
11/11 can be accomplished. After the procedure, the iris expander 10 is flattened and removed using a reverse procedure.
[036] With self-expansion, the iris expander 10 can be maintained in the first state by an introducer C inserted through the corneal incision 36 (figure 29). The introducer C (for example, a push plunger instrument) drives the iris expander 10 from there to be located inside iris I. With the release, iris expander 10 expands to the second state. An instrument, such as one or more hooks (for example, Sinskey hooks), can be used to adjust the position of the iris expander 10, if necessary. Once fully expanded (figure 28), an ophthalmic procedure can be performed. After the procedure, the iris expander 10 is flattened, for example, by retraction to introducer C.

权利要求:
Claims (21)
[1]
1. Iris expander, FEATURED by the fact that it comprises:
a non-metallic, unitary, multisegmented body that is expandable from a first state to a second state, said second state which defines a coverage area greater than said first state, said body being defined by a plurality of segments connected by hinges.
[2]
2. Iris expander, according to claim 1, CHARACTERIZED by the fact that the expansion of said expanding body from said first state to said second state is, in general, on an expansion plan.
[3]
3. Iris expander, according to claim 1, CHARACTERIZED by the fact that said body includes at least one projection lobe.
[4]
4. Iris expander, according to claim 3, CHARACTERIZED by the fact that a plurality of lobes protrude alternatively from opposite ends of said body.
[5]
5. Iris expander, according to claim 3, CHARACTERIZED by the fact that at least one pair of lobes protrude from said body to define a U-shaped pocket between them.
[6]
6. Iris expander, according to claim 1, CHARACTERIZED by the fact that a first of said segments and a second of said segments are configured collectively, in general, connected to all other segments with said body being in the said first state.
[7]
7. Iris expander, according to claim 6, CHARACTERIZED by the fact that said first segment is arcuate shaped and said second segment is arcuate, said first and second segments being positioned to bend outwards from each other with said body being in the first state.
[8]
8. Iris expander, according to claim 1, CHARACTERIZED
2/3 due to the fact that said body includes elastomeric material.
[9]
9. Iris expander, according to claim 1, CHARACTERIZED by the fact that said body includes thermoplastic material.
[10]
10. Iris expander, according to claim 1, CHARACTERIZED by the fact that said body includes thermoplastic / elastomeric copolymer.
[11]
11. Iris expander, CHARACTERIZED by the fact that it comprises:
a multisegmented body that is expandable from a first state to a second state, said second state which defines a coverage area greater than said first state, at least one opening to be formed in said body with a channel that extends from there to a part of said body, said channel being incorporated into said body, in such a way that no part of it is exposed externally of said body, said channel being formed to accommodate a part of a instrument for adjusting said body.
[12]
12. Iris expander, according to claim 11, CHARACTERIZED by the fact that said channel ends in a second opening formed in said body.
[13]
13. Iris expander, according to claim 11, CHARACTERIZED by the fact that the expansion of said expanding body from said first state to said second state is, in general, on an expansion plan.
[14]
14. Iris expander, according to claim 13, CHARACTERIZED by the fact that said channel extends along a longitudinal axis arranged transversely to said expansion plane.
[15]
15. Iris expander, according to claim 11, CHARACTERIZED by the fact that said body includes a plurality of segments connected in an articulated manner.
[16]
16. Iris expander according to claim 11, CHARACTERIZED by the fact that a plurality of said openings is provided spaced around
3/3 of said body, a channel extending from each of said opening that is incorporated in said body, in such a way that no part of it is exposed externally of said body.
[17]
17. Iris expander, according to claim 16, CHARACTERIZED by the fact that said plurality of openings is equally spaced around said body.
[18]
18. Iris expander, according to claim 11, CHARACTERIZED by the fact that said body is non-metallic.
[19]
19. Iris expander, according to claim 18, CHARACTERIZED by the fact that said body includes elastomeric material.
[20]
20. Iris expander, according to claim 18, CHARACTERIZED by the fact that said body includes thermoplastic material.
[21]
21. Iris expander, according to claim 18, CHARACTERIZED by the fact that said body includes thermoplastic / elastomeric copolymer.

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引用文献:

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

US2053868A|1934-01-09|1936-09-08|Patrick P Grosso|Universal self-retaining retractor|

US2845925A|1953-11-24|1958-08-05|Jayle Gaetan Jean|Automatic eyelids eyeball fixing device for a surgical intervention|

US3490455A|1965-05-17|1970-01-20|Karl M Illig|Surgical device|

US4037589A|1975-10-03|1977-07-26|William U. McReynolds|Ocular surgical system|

US4257406A|1979-05-18|1981-03-24|Schenk Alan G|Iris retractor and pupil dilator|

SU944558A1|1980-06-25|1982-07-23|Иркутский Государственный Медицинский Институт|Pupil dilator|

US4387706A|1981-04-10|1983-06-14|Glass Robert M|Iris retractor|

US4782820A|1987-10-22|1988-11-08|Woods Randall L|Iris retaining device|

US4991567A|1990-01-16|1991-02-12|Mccuen Ii Brooks W|Micro-iris retractor|

US5174279A|1991-03-06|1992-12-29|Duke University Medical Center|Iris retractor for use in operations on the eye of a living creature|

US5163419A|1991-04-04|1992-11-17|Goldman Kenneth N|Device for expanding the pupil of a human eye|

US5318011A|1992-02-04|1994-06-07|Escalon Ophthalmics, Inc.|Iris protector/dilator and method of using the same|

US5427088A|1992-02-18|1995-06-27|Graether; John M.|Apparatus for inserting a pupil expander|

US5634884A|1992-02-18|1997-06-03|Graether Development Corporation|Apparatus for inserting a pupil expander|

US5322054A|1992-02-18|1994-06-21|Graether John M|Pupil expander carrier and means for manipulating a pupil expander|

US5267553A|1992-02-18|1993-12-07|Graether John M|Pupil expander and method of using the same|

US5299564A|1992-09-23|1994-04-05|Kabi Pharmacia Ophthalmics Inc.|Expandable dilator and method for intraocular surgery|

US5374272A|1993-06-29|1994-12-20|Vitrophage, Inc.|Apparatus and method for mechanically dilating the pupil of an eye|

US5514076A|1994-01-27|1996-05-07|Flexmedics Corporation|Surgical retractor|

US5607446A|1995-01-31|1997-03-04|Beehler; Cecil C.|Pupil dilator|

AU712377B2|1996-03-26|1999-11-04|Milvella Pty Ltd|Device for dilating a pupil and/or maintaining a pupil in a dilated state|

US6068643A|1996-03-26|2000-05-30|Milvella Pty. Ltd.|Device for dilating a pupil and/or maintaining a pupil in a dilated state|

DE19538951C2|1995-10-19|1998-04-30|Detlef H Dr Holzwig|Device for spreading an eye iris|

US5716328A|1996-08-07|1998-02-10|Grieshaber & Co. Ag Schaffhausen|Iris retractor for use in surgical procedure on the eye of a living being|

US5807244A|1996-11-15|1998-09-15|Barot; Jagdish Shantilal|Single use disposable iris retractor|

US5846192A|1997-10-31|1998-12-08|Teixido-Longworth Partnership|Polymeric surgical retractor|

US6162172A|1998-01-30|2000-12-19|Edwards Lifesciences Corporation|Methods and apparatus for retracting tissue|

US6332866B1|2000-03-21|2001-12-25|Grieshaber & Co. Ag Schaffhausen|Iris retractor for use in surgical procedure on the eye of a living being|

US6561974B1|2000-05-31|2003-05-13|Grieshaber & Co. Ag Schaffhausen|Device for use in a surgical procedure on an eye of a living being, and method of retracting the iris|

FR2827497A1|2001-07-19|2003-01-24|Francois Deschatres|Support for holding eyelids open during surgical procedure comprises one-piece component with grooves for lids and central aperture for access|

US6648819B2|2001-11-15|2003-11-18|Yau Wing Lee|Pupil dilator|

WO2004010876A1|2002-06-28|2004-02-05|3062696 Nova Scotia Limited|Pupil dilating device and apparatus for use therewith|

DE102004027236B4|2004-06-03|2006-04-13|Morcher Gmbh|Capsular equatorial ring|

RU2295941C1|2005-09-07|2007-03-27|Федеральное государственное учреждение "Межотраслевой научно-технический комплекс "Микрохирургия глаза" им. акад. С.Н. Федорова Федерального агентства по здравоохранению и социальному развитию"|Method and device for extracting cataract with intraocular lens being implanted under narrow pupil condition|

WO2007141588A1|2006-06-02|2007-12-13|Nokia Corporation|Split exit pupil expander|

CN200966677Y|2006-11-15|2007-10-31|姚晓明|Pupilla extending device|

US20080188860A1|2007-02-07|2008-08-07|Vold Steven D|Ophthalmic surgical apparatus|

US8323296B2|2007-03-15|2012-12-04|Boris Malyugin|Ring used in a small pupil phacoemulsification procedure|

US9918710B2|2007-03-15|2018-03-20|Microsurgical Technology, Inc.|Expansion ring for eyeball tissue|

US20080243139A1|2007-03-15|2008-10-02|Vaclav Dusek|Method for assembling a ring used in a small pupil phaco procedure|

DE202007010335U1|2007-07-23|2007-10-11|Rümpler, Lars, Dr.|Tensioning ring for temporary implantation in the human eye for pupil dilation|

US9078995B2|2010-05-13|2015-07-14|Xygent Vision Care Insight|Iris retraction balloon for phacoemulsification|

WO2012037550A1|2010-09-17|2012-03-22|Henry Ford Health System|Pupil ring|

US20120289786A1|2010-11-09|2012-11-15|Microsurgical Technology, Inc.|Extension ring for eyeball tissue|

US8439833B2|2011-10-18|2013-05-14|Oasis Medical, Inc.|Ophthalmic structure|

US8852091B2|2012-04-04|2014-10-07|Alcon Research, Ltd.|Devices, systems, and methods for pupil expansion|

RU122576U1|2012-07-10|2012-12-10|Федеральное государственное бюджетное учреждение "Межотраслевой научно-технический комплекс "Микрохирургия глаза" имени академика С.Н. Федорова Министерства здравоохранения и социального развития Российской Федерации"|DEVICE FOR EXTENSION OF THE PUPPET AND FIXATION OF THE CAPSULE BAG|

US8496583B1|2012-11-03|2013-07-30|Michael Reynard|Pupil dilation system|

US20140221759A1|2013-02-06|2014-08-07|Impex, Inc.|Pupil expansion apparatus|

KR20210089246A|2013-03-15|2021-07-15|비버-비지텍 인터내셔날 인코포레이티드|Iris expander|

JP5528600B1|2013-03-29|2014-06-25|株式会社ＦｒｏｎｔｉｅｒＶｉｓｉｏｎ|Pupil dilator|US8323296B2|2007-03-15|2012-12-04|Boris Malyugin|Ring used in a small pupil phacoemulsification procedure|

US9918710B2|2007-03-15|2018-03-20|Microsurgical Technology, Inc.|Expansion ring for eyeball tissue|

US8439833B2|2011-10-18|2013-05-14|Oasis Medical, Inc.|Ophthalmic structure|

US20140221759A1|2013-02-06|2014-08-07|Impex, Inc.|Pupil expansion apparatus|

EP2961329B1|2013-02-27|2018-02-21|Med Invent Devices Private Limited|Device providing enlargement and preventing collapse of the pupil of the eye|

KR20210089246A|2013-03-15|2021-07-15|비버-비지텍 인터내셔날인코포레이티드|Iris expander|

JP5528600B1|2013-03-29|2014-06-25|株式会社ＦｒｏｎｔｉｅｒＶｉｓｉｏｎ|Pupil dilator|

JP5528599B1|2013-03-29|2014-06-25|株式会社ＦｒｏｎｔｉｅｒＶｉｓｉｏｎ|Pupil dilator|

US20140378773A1|2013-06-19|2014-12-25|Ronald Dykes|Intraocular Expansion and Retention Devices and Methods|

US10307150B2|2014-06-26|2019-06-04|The Regents Of The University Of Colorado, A Body Corporate|Ocular tissue expansion ring|

US20160367397A1|2014-08-12|2016-12-22|Katalyst Surgical, Llc|Multi-function capsulorhexis guide|

US9504459B1|2015-06-30|2016-11-29|Ravi Nallakrishnan Revocable Trust|Surgical apparatus and method of use thereof|

EP3329859B1|2015-07-31|2020-10-07|Canabrava, Sergio Félix|Iris dilating ring for cataract surgery without injector|

KR101592975B1|2015-08-19|2016-02-12|위캔메디케어 주식회사|Surgical retractor|

WO2019040836A1|2017-08-25|2019-02-28|Zacharia Peter|Eye surgery device|

CN109998613A|2019-04-19|2019-07-12|郑州大学第一附属医院|The iris extension fixture of corneal incision wound can be reduced|

CN111345937A|2020-03-12|2020-06-30|江苏康视佳医疗器械有限公司|Integral type iris expander|

US20210353457A1|2020-05-18|2021-11-18|Refocus Group, Inc.|Apparatus and method for securing ocular tissue and providing surgical tool positioning points|

WO2021261551A1|2020-06-26|2021-12-30|株式会社Mirai Eye|Pupil expansion device|

法律状态:
2018-11-13| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

2020-07-21| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

2021-10-13| B350| Update of information on the portal [chapter 15.35 patent gazette]|

2021-12-07| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|

优先权:

申请号 | 申请日 | 专利标题

US201361788350P| true| 2013-03-15|2013-03-15|

PCT/US2014/030550|WO2014145739A1|2013-03-15|2014-03-17|Iris expander|

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