![]() Intraocular lens
专利摘要:
An intraocular lens assembly suitable for implantation into either the anterior or posterior chamber of the human eye has a lens body supported in the eye by first and second support members extending from the lens body for engaging adjacent portions of the anterior or posterior chamber of the eye, at least one of the support members comprising an asymmetric spring-like support loop of circular cross-section extending outwardly from the peripheral edge of the lens body; the support loop has first and second leg portions attached to the periphery of the lens body diverging outwardly from the lens body, each leg portion containing a sloped portion with the sloped portion of each leg being of nearly equal lengths; the outer edge of the support loop is received in and biased against the natural cavities and angles of the eye from which the natural lens has been removed and has one or more contact portions for engaging the adjacent portions of the eye. 公开号:SU1386017A3 申请号:SU833575704 申请日:1983-04-01 公开日:1988-03-30 发明作者:Джеффри Аркелл Джеймс;Николс Хамлин Роберт 申请人:Миннесота Майнинг Энд Мануфакчуринг Компани (Фирма); IPC主号:
专利说明:
G b oo 00 O5 CN The invention relates to medicine, namely to ophthalmology. The purpose of the invention is to increase stability, reduce rotation and axial movement of the lens in the eye by using support elements in the form of asymmetric cantilever loops that fold in a radial direction when the lens is compressed. Fig, shows the inner eye - on the lens, front view; FIG. 2 is the same side view; Fig. 3 is a front view lens located in the rear chamber; Fig, 4 - the same, side view in cross section; Fig. 5 shows an embodiment of a lens, front view; Fig. 6 is a lens (embodiment) placed in the front chamber, side view in cross section. The intraocular lens contains an optical element 1 and. Two identical support elements in the form of elastic asymmetric loops 2 and 3 fixed to the periphery of the optical element and divorced one relative to the other around the optical axis a-a of the optical element through 180 ° O Loops 2 and 3 consist of the upstream part 4 ( over the lengths of the AB and BBjjno-transverse part 5 (over the CG segment) and downstream part 6 (over the CG and DC segments), with the ascending and descending parts 4 and 6 containing inclined sections 7 and 8 -respectively rack-mount (segment AB) and cantilever (segment ED) forms, differing The length is not more than 30%. The transverse parts of the 5 loops lie in a plane parallel to the plane 9 of the optical element 1 and 0.3–1 mm from it. Inclined sections 7 and 8 of the ascending and descending parts 4 and 6 the supporting elements lie between two imaginary lines bb and in-in, parallel to each other and forming an angle with the inclined section 7 of the rack-shaped form. The lens is used as follows. The lens can be installed in both the anterior and posterior chambers of the eye after removing the lens. To install the lens, for example, in the back chamber, loops 2 and 3 are compressed radially towards the dent. Wherein the loops move at a certain angle along the spiral path around the optical element 1, approaching the periphery of the latter. As a result of squeezing the loops, the inclined sections 7 and 8 of the upward and downward parts of the supporting elements are closer to each other, and the transverse parts 5 are close to the center of the optical element In this position, the lens is inserted into the posterior chamber, and after the loops are released from the compressive force, the transverse loops 5 occupy the ciliary gyrus 10, Due to the displacement of the plane of the transverse parts 5 of the loops from the plane 9 of the optical element, contact of the latter with the iris 1 is excluded, The design of the supporting elements prevents the axial displacement of the optical element when radially directed forces occur, which increases the stability of the lens, reduces the likelihood ness of postoperative complications.
权利要求:
Claims (1) [1] 1. Inside lens containing an optical element and two identical supporting elements in the form of elastic asymmetric loops fixed to the periphery of the optical element About and divorced one relative to another around the optical axis of the optical element at 80 °, and the loops consist of 1 hour, transverse and downward movement, characterized in that, in order to increase stability, reducing the rotation and axial movement of the lens in the eye, the ascending and descending parts contain inclined sections of the rack and cantilever forms, respectively, differing in the length is not more than 30%, with the transverse parts lying in a plane parallel to the plane of the optical element and 0.3–1 mm away from it. 2, Lens according to claim 1, characterized in that the inclined portions of the ascending and descending portions of the supporting elements lie between two imaginary lines parallel to one another and forming an angle with the inclined portion of the rack-shaped form. Fi.Z FIG. li B FIG. five 2 eleven Phi5.6
类似技术:
公开号 | 公开日 | 专利标题 SU1386017A3|1988-03-30|Intraocular lens US5015254A|1991-05-14|Intraocular posterior chamber lens US4990159A|1991-02-05|Intraocular lens apparatus with haptics of varying cross-sectional areas US7510578B2|2009-03-31|Intraocular lenses with fixated haptics US6083261A|2000-07-04|Crossed haptics for intraocular lenses US4551864A|1985-11-12|Anterior chamber lens KR0127747B1|1997-12-26|Anterior chamber intraocular implant US4254510A|1981-03-10|Implant lens with biarcuate fixation US4261065A|1981-04-14|Artificial intraocular lens with forward-positioned optics US4911715A|1990-03-27|Overlapping two piece intraocular lens CA2109590A1|1993-01-21|Intraocular refractive lens US4365360A|1982-12-28|Lens designed for implantation into a lens capsule of a human eye GB2171912A|1986-09-10|Hinged intraocular lens CA1318467C|1993-06-01|Intraocular lens with variable circumference encircling haptic CA1210204A|1986-08-26|Intraocular lens GB1525161A|1978-09-20|Artificial intraocular lens US4588405A|1986-05-13|Intraocular lens assembly CA1186853A|1985-05-14|Multi-positionable intraocular lens US4589147A|1986-05-20|Intraocular lens EP0032835B1|1985-08-14|Intraocular lens US4681586A|1987-07-21|Intraocular lens having unitary integral haptic means KR0162655B1|1998-12-15|Intraocular lens US4473910A|1984-10-02|Intraocular lens US4778464A|1988-10-18|Intraocular prosthetic lens US4513456A|1985-04-30|Intraocular lens
同族专利:
公开号 | 公开日 DE3377895D1|1988-10-13| CS248038B2|1987-01-15| JPS58185153A|1983-10-28| AU1308183A|1983-10-06| CA1226402A|1987-09-08| EP0091242B1|1988-09-07| EP0091242A3|1984-09-19| US4578078A|1986-03-25| JPH0453542B2|1992-08-26| EP0091242A2|1983-10-12| AU564602B2|1987-08-20|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 US2834023A|1957-02-06|1958-05-13|Titmus Optical Company Inc|Anterior chamber lenses for refractive correction of aphakia, high ametropia, and anisometropia| US3866249A|1974-03-07|1975-02-18|Leonard Flom|Posterior chamber artificial intraocular lens| US3913148A|1974-12-26|1975-10-21|Ernst W Potthast|Intraocular lens apparatus| US3994027A|1975-05-28|1976-11-30|California Intraocular Lens Corporation|Prepupillary lens for implanting in a human eye| US4014049A|1976-04-07|1977-03-29|American Optical Corporation|Artificial intraocular lens and supporting system therefor| US4073015A|1976-05-07|1978-02-14|Peyman Gholam A|Artificial intraocular lens attachment| US4092743A|1976-10-04|1978-06-06|Kelman Charles D|Intraocular lenses| US4134160A|1977-03-16|1979-01-16|Bayers Jon Herbert|Intraocular lens| US4198714A|1977-05-06|1980-04-22|Jensen Ronald P|Intraocular lens for implantation into the posterior chamber of a human eye| US4110848A|1977-05-06|1978-09-05|Ronald P. Jensen|Intraocular lens for implantation into the posterior chamber of a human eye| US4159546A|1977-06-15|1979-07-03|Shearing Steven P|Intraocular lens| GB1582657A|1977-12-22|1981-01-14|Choyce David P|Intraocular anterior chamber implants| US4174543A|1978-06-01|1979-11-20|Kelman Charles D|Intraocular lenses| US4249271A|1979-07-13|1981-02-10|Stanley Poler|Intraocular lens| US4328595A|1979-08-30|1982-05-11|Sheets John H|Intraocular lens| CA1165056A|1980-01-21|1984-04-10|William H. Grinder|Intraocular lens| JPS5657446A|1980-03-25|1981-05-19|Choyce David P|Inserting body for front atrium|US4502162A|1983-10-07|1985-03-05|Coopervision, Inc.|Haptic for intraocular lens| US4787904A|1984-07-06|1988-11-29|Severin Sanford L|Hydrophillic intraocular lens| US4678469A|1986-10-20|1987-07-07|Kelman Charles D|Intraocular lens with glare-inhibiting closure, the method of inhibiting glare, and the closure for same| US4936849A|1988-03-15|1990-06-26|Minnesota Mining And Manufacturing Company|Intraocular lens| US4964206A|1988-03-15|1990-10-23|Minnesota Mining And Manufacturing Company|Intraocular lens anchoring filament to lens element fixation method| US4919662A|1988-09-16|1990-04-24|Minnesota Mining And Manufacturing Company|Hydrogel implant lens construction reconfigured dehydrated re-hydrated in situ| US4990159A|1988-12-02|1991-02-05|Kraff Manus C|Intraocular lens apparatus with haptics of varying cross-sectional areas| FR2780271B1|1998-06-26|2000-11-10|Corneal Ind|INTRAOCULAR IMPLANT OF FLEXIBLE MATERIAL| US6228115B1|1998-11-05|2001-05-08|Bausch & Lomb Surgical, Inc.|Intraocular lenses with improved axial stability| US6190410B1|1999-04-29|2001-02-20|Bausch & Lomb Surgical, Inc.|Intraocular lenses| US6200344B1|1999-04-29|2001-03-13|Bausch & Lomb Surgical, Inc.|Inraocular lenses| US6241777B1|1999-09-01|2001-06-05|Robert E. Kellan|Phakic intraocular lenses| EP1696831B1|2003-12-05|2014-01-15|Innolene LLC|Method of producing a refractive ocular lens| US20070032868A1|2005-08-08|2007-02-08|Randall Woods|Capsular shape-restoring device| GB0623657D0|2006-11-27|2007-01-03|Rayner Intraocular Lenses Ltd|Intraocular lens| EP1974705B1|2007-03-26|2014-03-05|Fameccanica.Data S.p.A.|Absorbing element for sanitary products, having expandable pockets containing superabsorbent material and manufacturing process|
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申请号 | 申请日 | 专利标题 US06/364,396|US4578078A|1982-04-02|1982-04-02|Intraocular lens with asymetric vaulted support loops| 相关专利
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