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Publication numberCN101505684 A
Publication typeApplication
Application numberCN 200780027538
PCT numberPCT/US2007/074013
Publication date12 Aug 2009
Filing date20 Jul 2007
Priority date20 Jul 2006
Also published asCA2657952A1, CN101505684B, EP2049044A2, EP2049044B1, US7981155, US20070129801, WO2008011589A2, WO2008011589A3
Publication number200780027538.X, CN 101505684 A, CN 101505684A, CN 200780027538, CN-A-101505684, CN101505684 A, CN101505684A, CN200780027538, CN200780027538.X, PCT/2007/74013, PCT/US/2007/074013, PCT/US/2007/74013, PCT/US/7/074013, PCT/US/7/74013, PCT/US2007/074013, PCT/US2007/74013, PCT/US2007074013, PCT/US200774013, PCT/US7/074013, PCT/US7/74013, PCT/US7074013, PCT/US774013
InventorsJ斯图尔特卡明
ApplicantC&C影像国际有限公司
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
Hydrolic accommodating intraocular lens
CN 101505684 A
Abstract
An accommodating intraocular lens comprising an optic made from solid silicone and liquid silicone. The optic has a central anterior area or membrane that can vary in radius and thus charge power.
Claims(28)  translated from Chinese
1、一种可调节型人工晶状体,其具有由固态硅酮和液态硅酮形成的光学部,所述光学部是圆形的并且具有固态硅酮的后部,该后部延伸至固态硅酮的前环部,该前环部形成从所述晶状体的后侧延伸至前侧的外径部;所述光学部还包括固态且居中的前部,该前部延伸至所述前环部而且包括有膜,该膜大体上比固态的所述后部和固态的所述环部薄并能够变形,所述光学部内的液态硅酮通过上述多个固态部保持在其中,所述光学部设计为使得当玻璃体腔施加在固态的所述后部上的压力增大时,较薄的所述前部的曲率半径能够发生改变。 An adjustable intraocular lens having an optical section from solid silicone and liquid silicone is formed, the optical portion is circular and has a rear-solid silicone, which extends to the back of the solid silicone The front ring portion, the front ring portion is formed extending from the rear to the front of the lens outer diameter portion; the optical unit further includes a front portion of the solid and centered, the front portion extending to the front ring portion and comprises a film, the film is substantially solid than the rear portion and the ring portion of the thin solid and deformable, liquid silicone within the optical portion of the holding portion by a plurality of solid state therein, the design of the optical portion such that when pressure is applied to the vitreous cavity at the rear portion of the solid increases, the radius of curvature of the thin front portion can be changed.
2、如权利要求l所述的晶状体,其还包括从所述光学部的边缘开始延伸的延伸部,所述延伸部有助于将所述晶状体置入眼中。 2. A lens according to claim l, which further includes an extension portion extending from an edge of the optical portion, the extension portion of the lens into the eye helps.
3、 如权利要求2所述的晶状体, 3. A lens according to claim 2,
4、 如权利要求2所述的晶状体, 4. A lens according to claim 2,
5、 如权利要求l所述的晶状体, 述延伸部的外端向前和向后移动。 5. A lens according to claim l, said outer end portion extending forward and backward movement. 其中,所述延伸部是襻件。 Wherein said extending portion is a loop member. 其中,所述延伸部是襻板。 Wherein said extending portion is a plate haptic. 其中,所述光学部能够相对于所 Wherein the optical unit with respect to the
6、如权利要求l所述的晶状体,其中,所述固态硅酮和所述液态硅酮的比重与人眼的水溶液的比重大致相等。 6. The lens of claim l, wherein the proportion of the silicone and the solid specific gravity of the liquid silicone in an aqueous solution of the human eye is substantially equal.
7、如权利要求l所述的晶状体,其设计为使得玻璃体压力引起的对所述后部的后表面的压缩能够导致所述前部的前表面对称凸出。 7. A lens according to claim l, which is designed so that the pressure caused by the compression of the vitreous rear surface of the rear portion of the front surface of the front can result in a symmetric convex portion.
8、如权利要求l所述的晶状体,其中,所述光学部的固态部和液态部的折射率大致相等。 8. The lens of claim l, wherein the refractive index of the liquid portion and the solid portion of the optical portion is substantially equal.
9、如权利要求l所述的晶状体,其中,当睫状肌放松时,所述光学部的曲率半径使植入所述晶状体的患者屈光正常。 9. A lens according to claim l, wherein, when the ciliary muscle to relax, the radius of curvature of the optical portion of the lens implant patient emmetropic.
10、如权利要求l所述的晶状体,其中,在制造过程中可以对所述后部或所述前部的后固态表面或前固态表面的曲率半径进行改变,从而使指定的人眼屈光正常。 10. The lens of claim l, wherein, in the manufacturing process can be solid or rear surface of the rear portion of the front portion or the radius of curvature of the front surface of the solid state changes, so that the human eye refractive designated normal.
11、如权利要求l所述的晶状体,其中,在植入以后所述光学部的光焦度可以通过改变所述光学部中的液态硅酮的量而改变。 11. The lens of claim l, wherein, after implantation of the optical power of the optical portion can be changed by changing the amount of the optical portion of the liquid silicone.
12、如权利要求l所述的晶状体,其中,所述薄的前部的面积小于所述居中的后部的面积。 12. The lens of claim l, wherein said thin area smaller than the area of the front portion of the rear center.
13、如权利要求l所述的晶状体,其中,所述薄的前部的面积大于所述居中的后部的面积。 13. The lens of claim l, wherein said thin area greater than the area of the front portion of the rear center.
14、如权利要求l所述的晶状体,其中,所述薄的前部的更薄部分的直径小于所述居中的后部的直径。 14. The lens of claim l, wherein the diameter of the rear portion of the center of the thin portion thinner diameter smaller than the front portion.
15、如权利要求l所述的晶状体,其中,所述薄的前部比所述环形后膜更薄。 15. A lens according to claim l, wherein said thin front portion is thinner than the rear of the annular membrane.
16、如权利要求l所述的晶状体,其中,所述后部包括环形膜,而且所述薄的前部比所述环形后膜更薄。 16. A lens according to claim l, wherein said rear portion includes an annular membrane, and the front portion of said thin film is thinner than the rear annular.
17、如权利要求3所述的晶状体,其中,所述襻件具有邻近所述光学部的铰链。 17. A lens according to claim 3, wherein said haptic member has a hinge adjacent the optical part.
18、如权利要求l所述的晶状体,其中,在所述光学部的后表面上设置有360度的直角边缘。 18. A lens according to claim l, wherein, provided on the rear surface of the optical portion of the right angle edge 360 degrees.
19、如权利要求l所述的晶状体,其中,所述后部具有固定的中心半径,而所述前部的半径是可变形的。 19. The lens of claim l, wherein said rear portion has a fixed center radius, and the radius of the front portion is deformable.
20、如权利要求l所述的晶状体,其中,固态的周边区域继续延伸从而在铰接部与所述光学部的固态后部接合。 20. The lens of claim l, wherein the solid peripheral areas continue to extend to engage the rear of the hinge portion in the solid state and the optical portion.
21、如权利要求l所述的晶状体,其中,玻璃体腔压力的增大能够导致所述晶状体的光学部倾斜从而有助于进行调节。 21. The lens of claim l, wherein the vitreous cavity pressure can lead to an increase in the optical portion of the lens is inclined so as to contribute to adjustment.
22、一种组合式可调节型人工晶状体,其具有带光学中心的光学部, 该光学部由固态硅酮和液态硅酮形成,薄的硅酮膜位于所述晶状体的后表面和前表面上,所述前表面上的膜是居中的,而所述后膜是环形的并处于后光学部的光学中心的周边。 22. A modular adjustable intraocular lens having an optical unit with the optical center of the optical portion is formed by the solid silicone and liquid silicone, thin silicone membrane located on the rear surface of the lens and the front surface film on the surface of the front is centered, and after said film is annular and surrounding the optical center at the rear of the optical portion.
23、如权利要求22所述的晶状体,其中,所述晶状体包括从所述光学部的边缘开始延伸的延伸部,所述延伸部有助于将所述晶状体置入眼中。 23. The lens of claim 22, wherein said lens includes an extension portion extending from an edge of the optical portion, the extension portion of the lens into the eye helps.
24、如权利要求22所述的晶状体,其中,所述延伸部是襻件。 24. The lens of claim 22, wherein said extending portion is a loop member.
25、如权利要求22所述的晶状体,其中,所述襻件具有邻近所述光学部的铰链。 25. The lens of claim 22, wherein said haptic member has a hinge adjacent the optical part.
26、如权利要求22所述的晶状体,其中,所述后膜在所述光学部的后轴向部与前后外部之间延伸,并且所述前膜在所述晶状体的前侧上居中。 26. The lens of claim 22, wherein, after the film is between the rear and front axial portion extends outside of the optical portion, and before the film is centered on the front side of the lens.
27、 一种可调节型人工晶状体,其中光学部包括: 一体式居中光学系统,其由固态的、半径固定的、具有柔性环形周边的光学部件支撑;居中的前光学部件,其包括可变形的薄膜,居中的液态光学材料,其位于所述晶状体内,后部居中的固态柔性光学部,其通过环形膜悬置于固态的环形支撑件上,该环形膜比所述薄的前膜厚并且比所述薄的前膜的弹性小,所述后光学部设计为能够在睫状肌收缩使得玻璃体腔压力增大时向前移动并压缩所述居中的液态光学材料从而使所述薄的前膜向前凸出,进而导致其曲率半径减小并且光焦度增大,以及襻件,其将所述光学系统支撑在眼睛内。 27, an adjustable intraocular lens, wherein the optical unit comprises: an integral centered optical system consisting of a solid, fixed radius, having a flexible annular peripheral optical member support; front center of the optical component, which comprises a deformable film, middle liquid optical material, which is located inside the lens, the optical portion of the rear flexible solid center, which is suspended by an annular film on a solid annular support member, the annular membrane thinner than the thickness of the front and Flexible thinner than the previous film is small, the rear of the optical unit is designed to be able to make the ciliary muscle contraction to move forward when the vitreous cavity pressure increases and the compression of the middle of the liquid optical material so that the thin front membrane protrudes forward, leading to reduced radius of curvature and optical power is increased, and the loop member, which support the optical system in the eye.
28、 如权利要求27所述的晶状体,其包括位于所述襻件的远端上的固定装置。 28. The lens of claim 27 wherein said haptic including a distal end member located on the fixture requirements.
Description  translated from Chinese

液压可调节型人工晶状体 Hydraulic adjustable intraocular lens

背景技术 Background

多年来,人工晶状体一直沿用的设计是包括单个光学部和附接至所述光学部从而使晶状体居中并将晶状体固定在人晶状体的空囊袋中的环。 Over the years, the IOL design has been used to include a single optical section and attached to the optical portion of the lens so that the lens is centered and fixed in people's empty capsular bag lens ring. In

80年代中期出现了板式晶状体,其包括具有6毫米的光学部且长度为10.5 毫米的硅酮晶状体。 It appeared in the mid-1980s plate lens, comprising an optical portion having a 6 mm and a length of 10.5 mm silicone lens. 这些晶状体能够折叠但却不能4艮好地固定在嚢袋中, 而是居于前嚢膜和后囊膜之间的凹穴中。 The lens can be folded but not 4 Burgundy well secured Nang bag, but living in the pockets before Nang film and between the posterior capsule. 第一代可折叠晶状体完全由硅酮制成。 The first generation of foldable lenses made entirely from silicone. 在20世纪90年代中期提出了将丙烯酸树脂材料作为晶状体光学部的材料。 In the mid-1990s, it made an acrylic resin as a material of the optical portion of the lens. 丙烯酸树脂晶状体包括具有直边的双凸面光学部,环插置于其中以使晶状体在眼中居中并将晶状体固定在囊袋内。 Acrylic resin lens comprises a double convex optical element straight edge, ring interposed which centered so that the lens in the eye and the lens is fixed in the capsular bag.

最近市场上出现了可调节型人工晶状体,这种晶状体总体上为经过改型的襻(haptic)板式晶状体,并且和硅酮襻板式晶状体一样在板和光学部的后表面的连接处之间没有明显的分界。 Appeared on the market recently with adjustable intraocular lens, the lens is generally modified through haptic (haptic) lens plate, and the plate haptic silicone lens and the same connection between the plate and the rear surface of the optical part is not obvious boundaries. 襻板式晶状体可以定义为具有两个或更多个襻板的人工晶状体,所述襻板与光学部接合。 Plate haptic IOL lens can be defined as having two or more plate haptics, the haptics plate with the optical portion engaged.

柔性丙烯酸树脂材料明显受到眼科医生的青睐。 Flexible acrylic resin material has obviously been an ophthalmologist's favor. 以2003年为例, 超过50%的植入人工晶状体具有丙烯酸树脂的光学部。 In 2003, for example, more than 50% of the implanted intraocular lens optical portion having an acrylic resin. 目前也出现了水凝胶晶状体。 Currently there have been hydrogel lens. 丙烯酸树脂材料和水凝胶材料都不能在多次弯曲后不发生碎裂。 Acrylic resin material and the hydrogel material does not occur can not be broken after repeated bending.

通过反复弯曲以沿眼轴移动而起作用的可调节型晶状体的出现在某种程度上限制了能够制成晶状体的材料。 By repeated bending and axial movement along that functions Adjustable lens appear to some extent limited the material can be made lens. 硅酮是理想的材料,因为它是柔性的并且能够弯曲大概几百万次而不会出现任何损坏。 Silicone is the ideal material because it is flexible and can be bent probably several million times without any damage. 另外,在所述板上邻近光学部的地方可以贯穿地设置槽或铰链,其作为晶状体设计的一部分有助于光学部相对于襻的外端移动。 In addition, in place of the optical portion of the adjacent plate may be provided through the groove or hinge, as part of the help of the optical portion of the lens design with respect to the outer end of the movable loop. 另一方面,丙烯酸树脂材 On the other hand, an acrylic resin material

料如果被反复弯曲将会发生断裂。 If the material is repeatedly bending will fracture.

在J. Stuart dimming署名的美国专利No. 6,387,126以及其它专利中公开了这种类型的可调节型晶状体的示例。 J. Stuart dimming signed in U.S. Patent No. 6,387,126 and other patents disclose examples of this type of adjustable-type lens. 根据本发明的优选实施方式, 一种可调节型晶状体包括具有柔性固态光学部和内部液态光学部的晶状体,所述晶状体优选地具有两个或更多个从固态光学部开始延伸的延伸部,该延伸部可以是能够多次弯曲而不会断裂的襻板,优选地襻板的远端处设置有固定和对中的构件。 According to a preferred embodiment of the present invention, an adjustable type lens comprises a flexible solid optical lens unit and the internal liquid of the optical portion of the lens preferably has two or more extending portion extending from the solid portion of the optical, The extension may be capable of repeated bending without breaking the loop plate, the distal end of the plate is preferably provided with a fixed loop and the member. 在延伸部的邻近光学部的地方贯穿地设置有铰链或槽以便于光学部相对于延伸部的外端向前和向后移动。 In place of the optical portion extending adjacent portion provided through hinge or groove in the optical unit with respect to an outer end portion extending forward and backward movement. 另一方面,光学部可刚性地附接至襻。 On the other hand, the optical unit can be rigidly attached to the loop. 同样,襻也可以省略。 Similarly, the loop may be omitted. 根据本发明,光学部是具有液态硅酮内核的可折叠柔性硅酮、丙烯酸树脂或水凝胶材料,并且襻是能够经得住多次折叠而不会损坏的可折叠材料,比如硅酮。 According to the present invention, the optical portion is a foldable silicone having a flexible liquid silicone core, acrylic or hydrogel material, and haptics are capable of withstanding repeated folding without damage of foldable material, such as silicone. 优选地,襻板的端部具有T形固定装置而且该襻铰接至光学部。 Preferably, the end portion having a T-shaped plate haptics fixing means and the hinge loop to the optical portion. 本发明的晶状体由固态硅酮和液态硅酮制成,固态硅酮和液态硅酮的折射率相同,而且固态硅酮和液态珪酮的比重与自然人眼的水溶液的比重相同或非常近似。 The lens of the present invention are represented by the solid and liquid silicone into silicone, silicone-solid and liquid silicone same refractive index, and the same proportion of the solid and liquid silicone Gui-one proportion and natural eye solution or very similar. 晶状体的光焦度(power)在植入人眼之前可以通过下列方式改变:(1)改变光学部的后部的半径;和/或(2)在制造过程中改变晶状体的光学部中的液态硅酮的体积,或者在植入之后通过将相同或不同折射率的液态硅酮注入晶状体的空腔中来改变晶状体的光焦度。 Lens optical power (power) before implantation in a human eye can change in the following ways: (1) changes in the radius of the rear of the optical portion; and / or (2) changing the optical portion of the lens in the liquid during the manufacturing process volume of silicone, or after implantation by the same or different refractive indices injected liquid silicone lens cavity to change the optical power of the lens. 在适应睫状肌收缩以及玻璃体腔的压力增大的过程中,晶状体的固态硅酮后部的后表面被向前推动,这是因为其被珪酮膜所包围。 Adaptation ciliary muscle contraction and increases vitreous cavity pressure process, after the rear surface of the solid silicone lens is pushed forward, since it is surrounded by Gui ketone film. 这导致较薄的前膜凸出,从而增大了其曲率,因而为近视者减小了晶状体的前表面的半径。 This results in a thinner film before projection, thereby increasing its curvature, and thus to reduce the radius of the myopia of the front surface of the lens. 前薄膜可以在其周边稍厚一些,使得晶状体内的压力的增大将导致膜的中间部分凸出。 Before the film may be slightly thicker at its periphery, such that the pressure within the lens will lead to an increase in the intermediate portion of the film protruded. 这种结构模拟的是人体晶状体的前嚢层的结构和功能。 This configuration simulates the structure and function of the human lens before Nang layer. 后固态居中光学部可具有附加的单个或多个的球形部件或者可在其一个或两个表面上是非球面的,同样,玻璃体空腔的压力增大会使晶状体倾斜从而更容易进行调节。 After the solid center of the optical portion may have a spherical member attached or may be a single or a plurality of non-spherical surface on one or both surfaces of the same, the vitreous cavity pressure increases and thus make it easier for the lens inclination adjustment. 因此,本发明的特征在于提供一种由固态硅酮和液态硅酮形成的改进形式的可调节型晶状体。 Accordingly, the present invention is to provide a silicone from the solid and liquid form silicone modified form Adjustable lens. 附图说明图l是本发明的晶状体的优选实施方式的侧视截面图。 Brief Description of the Figure l is a side sectional view of a preferred embodiment of the lens of the present invention. 7图2是从后侧观察的该晶状体的俯视图。 7 FIG. 2 is a plan view of the lens viewed from the rear side. 图3是从前侧观察的该晶状体的俯视图。 Figure 3 is a plan view of the lens viewed from the front side. 图4是类似于图1的该晶状体的截面图,但其中示出的是晶状体的前部凸出或曲率增大的情形。 Figure 4 is a similar cross-sectional view of the lens of FIG. 1, but shows a case wherein the front portion of the projection lens or curvature increases. 图5和6示出的濕一截面的变型。 Figures 5 and 6 shows a cross-section of a variant wet. 图7-10示出的是具有不同形式的襻的本发明的晶状体。 Figure 7-10 shows a lens haptics with different forms of the present invention. 具体实施方式下面参照附图,图中详细示出了优选实施方式,其中包括具有光学部10和襻16的人工晶状体。 DETAILED DESCRIPTION Referring to the drawings, shown in detail in FIG preferred embodiments, including intraocular lenses having haptic 10 and 16. 光学部10由两个部件形成,即优选由珪酮、丙烯酸树脂或^胶制成的柔性固态部12 (12a-12d)和内部的液态硅酮部14。 The optical unit 10 is formed by two parts, one that is preferably made of Gui, acrylic flexible solid state section 12 (12a-12d) and liquid silicone resin within the Department or ^ 14 made of plastic. 固态部12a和12b足够坚硬以防止光学部10在;ti^A眼的纤维性组织的囊袋时发生变形。 Solid portions 12a and 12b are sufficiently hard to prevent the optical portion 10; ti ^ A deformation occurs when the fibrous tissue of the eye pouch. 柔性延伸部16可以是能够多次弯曲而不会损坏的襻板,而且柔性延伸部16由例如硅酮形成。 The flexible extensions 16 may be capable of repeated bending without damage to the haptic plates, such as silicone and a flexible extension portion 16 is formed by a. 光学部10和襻16优选是共平面的,两个或更多襻16从光学部10的相反侧向远处延伸。 The optical unit 10 and the loop 16 are preferably co-planar, two or more haptics 16 extending a distance from the opposite side of the optical unit 10. 襻16的外端可包括诸如Cumming的美国专利No. 6,387,126中>^开的柔性指状部17.光学部的边缘24优选地是360的直角边缘。 The outer end of the loop 16 may include, for example, U.S. Patent No. 6,387,126 Cumming in> ^ apart flexible fingers 17. The edge portions of the optical portion 24 is preferably a right angle of 360 edge. 晶状体10包括固态珪酮部12a、 12b和12d,其中固态部12c大体上比较薄,而12d甚至比12c更薄,从而具备能够在图1和图4的对比中看到的柔度。 Gui-one lens 10 comprises a solid portion 12a, 12b and 12d, wherein the solid portion 12c is substantially thinner, even more than 12c and 12d thinner, and thus have flexibility can be seen in contrast to FIGS. 1 and 4. 内部14是液态硅酮的。 14 is a liquid silicone inside. 已知的是,用于这种晶状体的硅酮的比重与人眼中的水溶液的比重相同或近似。 It is known that the proportion of proportion for such a silicone lens and the eyes of an aqueous solution of the same or similar. 这导致晶状体的液态部不会因重力而发生变形或者所发生的变形可忽略不计。 This causes the liquid portion of the lens is not deformed by gravity occurred or negligible distortion. 液态硅酮14 的折射率与固态部件12的折射率相同或相近。 The same or similar refractive index and the refractive index of the liquid silicone 14 12 solid member. 固态部12a的后部半径防止后折射面发生变形。 Rear solid portion 12a to prevent the rear refractive surface deformation radius. 在制造过程中能够对固态部12a或12b的半径进行改变以便给晶状体选择期望的光焦度。 In the manufacturing process capable of radius portion 12a or 12b of the solid changes to the lens in order to select the desired optical power. 同样,在制造过程中,能够通过改变晶状体光学部10中的液态硅酮14的体积来改变光焦度。 Similarly, in the manufacturing process, it is possible by changing the optical portion 10 in the liquid silicone lens 14 to change the volume of optical power. 在调节过程中,通过睫状肌收缩对玻璃体腔施压而将后表面部12a 向前推(图l和4中向左)。 In the adjustment process, by ciliary muscle contraction of the vitreous cavity pressure and the rear surface portion 12a is pushed forward (Figure l and 4, left). 前部12d由于曲率增大而凸出,也就是说前部12d的半径减小,如图4中所示。 Due to the curvature of the front portion 12d projecting increases, i.e. the front portion 12d of the radius decreases, as shown in FIG. 图1中固态部12b的从D至D的总体直径的示例性尺寸是4.5至10.5毫米,固态部12d的直径至多达5毫米,而图l中的厚度(从右至左)是3至6毫米。 Figure 1 the solid portion 12b exemplary sizes from D to D is the overall diameter of 4.5 to 10.5 mm, the diameter of the solid portion 12d to up to 5 mm, and a thickness of Figure l (right to left) is 3-6 mm. 固态硅酮部12a和12b的典型厚度在0.5毫米至1.5 毫米之间。 A typical thickness of the solid silicone portion 12a and 12b between 0.5 to 1.5 mm. 前膜12d的厚度非常小,优选大约为玩具气球的厚度,而环形部12c的厚度大约是上述厚度的两倍从而为固态后部晶状体提供足够的柔度。 The film thickness of the front 12d is very small, preferably to about the thickness of the toy balloons, and the thickness of the annular portion 12c is about twice said thickness so as to provide sufficient flexibility for the solid rear lens. 铰链区域18的厚度可以是0.1毫米。 The thickness of the hinge region 18 may be 0.1 mm. 铰链区域18可以是如图所示的"V"形,也可以是方槽形。 Hinge area 18 as shown may be "V" shaped groove may be square. 同样,铰链部22优选地设置在12c 与12a之间以便于后光学部12a向前运动。 Similarly, the hinge portion 22 is preferably disposed between 12a and 12c so that the optical portion 12a after the forward movement. 此外,本晶状体的光焦度在通过注入或除去光学部10中的液态硅酮而在植入人眼以后可能会发生改变。 In addition, the optical power of the lens implanted in the eye in the future may be changed by injecting or removing the optical unit 10 of liquid silicone. 固态部12d的直径以及其面积可以小于或大于后部12a的直径和面积,这取决于所设计的晶状体的期望的折射率范围。 Diameter solid portion 12d and the area 12a may be smaller or larger than the diameter of the rear area and, depending on the design of the desired refractive index range of the lens. 下面参照图5至6的实施方式,应当指出,前部12d的中间部分较薄,在玻璃体压力增大的情况下,如图6中所示该中间部分的凸出幅度将更大。 Referring to the embodiment of FIG. 5-6, it should be noted that the front portion of the intermediate portion 12d is thinner, in the case of vitreous pressure increases, the amplitude of the intermediate portion of the projection shown in Figure 6 will be greater. 本领域中众所周知的是,在去除天然晶状体之后将人工晶状体^JVA 眼的囊袋中。 It is well known in the art, after the removal of the natural lens of the eye IOL ^ JVA capsular bag. 通it^人体晶状体的前囊袋中切出大体上为圆形的开口以及通过角膜或巩膜中的小开口将晶状体插入嚢袋中。 Through it ^ before the body of the lens capsular bag cut substantially circular openings and through the cornea or sclera lens insertion Nang small opening in the bag. 襻的外端或环定位于嚢袋的盲管(cul-de-sac)中。 The outer end of the loop or ring is positioned in Nang bag blind pipe (cul-de-sac) in. 襻的外端或环处于囊袋的盲管附近,而且不管环的形式如何,该环都是弯曲(deflected)的。 Or near the outer end of the loop in a blind pouch of pipe ring, and no matter how form of a ring, the ring is bent (deflected) in. 可以在环的外端部上i殳置球形突出物以通过与纤维化组织接合来改善其在嚢袋或盲管中的稳固性,在手术切除前嚢袋的中央部分以后该纤维化组织在囊袋中得以产生。 May be on the outer ends of the ring i Shu knobs set by engaging with fibrotic tissue to improve its stability in Nang bag or blind pipe, after surgical resection of the central portion of the bag before Nang fibrosis in capsular bag is created. 如上所述,襻16在邻近光学部处贯穿其表面设置有形成铰链的空间或薄区域18。 As described above, in the vicinity of the optical loop 16 through which the surface portion is provided with a space or a thin region of the hinge 18. 这有助于光学部相对于襻的外端向前和向后移动。 This helps the optical unit with respect to the outer ends of the haptics to move forward and backward. 因此,已经图示和描述了一种晶状体,其包括固态和液态硅酮的光学部以及襻环或襻板,优选地在每个襻的端部具有固定和/或对中突出物。 Therefore, it has been shown and described a lens includes an optical portion of solid and liquid silicone and loop ring or loop board, preferably with fixed and / or the projections at the end of each loop. 对于本领域普通技术人员来说,在结合附图和权利要求参阅了本说明书以后,本发明的各种修改、改型、变型以及其它用途和应用将变得显而易见。 For those of ordinary skill in the accompanying drawings and claims later refer to this specification, various modifications, adaptations, variations and other uses and applications of the invention will become apparent. 没有背离本发明的精神和范围的所有这些修改、改型、变型以及其它用途和应用都将落入所附权利要求的范围内。 Without departing from the spirit and scope of the invention all such modifications, adaptations, variations and other uses and applications will fall within the scope of the appended claims.

Classifications
International ClassificationA61F2/16
Cooperative ClassificationA61F2250/0018, A61F2/1635
European ClassificationA61F2/16B4S, A61F2/16B
Legal Events
DateCodeEventDescription
12 Aug 2009C06Publication
7 Oct 2009C10Request of examination as to substance
7 Nov 2012C14Granted