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Publication numberCN101505684 B
Publication typeGrant
Application numberCN 200780027538
PCT numberPCT/US2007/074013
Publication date7 Nov 2012
Filing date20 Jul 2007
Priority date20 Jul 2006
Also published asCA2657952A1, CN101505684A, EP2049044A2, EP2049044B1, US7981155, US20070129801, WO2008011589A2, WO2008011589A3
Publication number200780027538.X, CN 101505684 B, CN 101505684B, CN 200780027538, CN-B-101505684, CN101505684 B, CN101505684B, 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 B
Abstract
The invention provides an accommodating intraocular lens, which comprises an optical part made of solid silicone and liquid silicone. The optical part is circular and comprises a centered rear portion made of solid silicone. The rear portion extends to a circumferential annular portion through an annular film, wherein the thickness of the circumferential annular portion is larger than the thickness of the annular film so as to form an outer diameter section extending from the circumferential rear side of the optical part to the front side thereof. The optical part also comprises a solid and centered front portion. The front portion extends to the front side of the circumferential annular portion and comprises a single film. The film is thinner than the annular film, thus is deformable. The liquid silicone of the optical part is held within the optical part through the plurality of solid portions and the films. The optical part is designed in such a way that when the pressure exerted on the solid rear portion by a glass cavity is increased, the curvature radius of the front thinner film can be changed.
Claims(20)  translated from Chinese
1. ー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居中后部,该后部通过环形膜延伸至厚度大于所述环形膜的固态硅酮的周向环部,形成从所述光学部的周向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,该前部延伸至所述周向环部的前侧而且包括有单膜,该膜比所述后侧的环形膜薄井能够变形,所述光学部内的液态硅酮通过上述多个固态部和膜保持在其中,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カ增大时,所述前部的较薄的单膜的曲率半径能够发生改变。 1. ー species adjustable intraocular lens having an optical portion from the solid state formed of silicone and a liquid silicone, the optical portion is circular and has a rear portion of center solid silicone, and the rear portion extending through the annular membrane to a thickness greater than the solid silicone membrane circumferential annular ring portion, is formed extending from the periphery of the optical portion of the front side to the rear side to an outer diameter portion; the optical portion further comprises a front portion of a solid state and is centered, the front extending portion to the circumferential portion of the front side of the ring and comprises a single film, the film than on the rear side of a thin annular membrane deformable well, liquid silicone within the optical portion via the plurality of solid state and a film holding portion therein, the optical unit is designed such that when applied to the vitreous cavity of the rear portion of the solid-state pressure ka increases, the radius of curvature of the front portion of the single thin film can be changed.
2.如权利要求I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。 I 2. The lens according to claim, which further includes an extension portion extending from the edge of the optical portion, said extension portion facilitates the lens into the eye.
3.如权利要求2所述的晶状体,其中,所述延伸部是襻件。 2 lens according to claim, wherein said extension is loop member.
4.如权利要求2所述的晶状体,其中,所述延伸部是襻板。 4. The lens according to claim 2, wherein said extending portion is a plate haptic.
5.如权利要求2所述的晶状体,其中,所述光学部能够相对于所述延伸部的外端向前和向后移动。 5. The lens of claim 2, wherein the optical portion relative to the outer end of said extending portion to move forward and backward.
6.如权利要求I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 according to claim I, wherein the proportion of the solid and the liquid silicone silicone proportion of the human eye is approximately equal to the aqueous solution.
7.如权利要求I所述的晶状体,其设计为使得玻璃体压カ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 as claimed in claim I, which is designed such that the vitreous pressure compressed ka rear surface of the front surface can result due to the symmetrical convex front portion.
8.如权利要求I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。 I said lens as claimed in claim wherein the refractive index of the solid portion and the liquid portion is substantially equal to the optical portion.
9.如权利要求I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. The lens as claimed in claim I, wherein, when the ciliary muscle relax, the radius of curvature of the optical portion of the lens implant patient emmetropic.
10.如权利要求I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. A lens as claimed in claim I, wherein, in the manufacturing process of the rear portion can be solid or rear surface 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I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娃酮的量而改变。 11. The lens as claimed in claim I, 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 baby ketone.
12.如权利要求I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. A lens as claimed in claim I, wherein the area of the thin front portion is smaller than the area of the rear part of the middle.
13.如权利要求I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. A lens as claimed in claim I, wherein the area of the thin front portion is larger than the area of the rear part of the middle.
14.如权利要求I所述的晶状体,其中,所述薄的前部的直径小于所述居中的后部的直径。 14. A lens as claimed in claim I, wherein the diameter of the rear portion of the center of the thin portion is smaller than the diameter of the front.
15.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。 15. The lens of claim 3, wherein said haptic member having a hinge adjacent to the optical portion.
16.如权利要求I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。 16. A lens as claimed in claim I, wherein, provided on the rear surface of the optical portion of the right angle edge 360 degrees.
17.如权利要求I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。 17. A lens as claimed in claim I, wherein said rear portion has a fixed center radius, and the radius of the front portion is deformable.
18.如权利要求I所述的晶状体,其中,玻璃体腔压カ的増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。 18. A lens as claimed in claim I, wherein, ka's vitreous cavity pressure can lead to enlargement of the big portion of the optical lens thus helping to adjust the inclination.
19. ー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,该环形膜比所述居中的前光学部件的可变形的薄膜厚并且比所述居中的前光学部件的可变形的薄膜的弾性小, 所述后光学部设计为能够在睫状肌收缩使得玻璃体腔压カ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居中的前光学部件的可变形的薄膜向前凸出,进而导致其曲率半径减小并且光焦度増大,以及襻件,其将所述光学系统支撑在眼睛内。 19. ー species adjustable intraocular lens, wherein the optical unit comprises: an integral center optical system, consisting of a solid, fixed radius, having a flexible annular peripheral optical member support; center front of the optical member, which comprises a deformable film, centered liquid optical material, positioned within the lens, the rear portion of the solid-state flexible optical center, which is suspended by an annular film on a solid annular support member, the annular film than the center of the front optical member弾 deformable film of film thickness than the deformable and centered front optical member is small, the rear optical unit designed to be capable of ciliary muscle contraction so that the vitreous cavity pressure increases and moves forward ka compression said center of the liquid optical material of the optical member so that the front centered deformable film protrudes forward, which led to its radius of curvature decreases and the optical power zo large, as well as haptic parts, which will be supported in the optical system within the eye.
20.如权利要求19所述的晶状体,其包括位于所述襻件的远端上的固定装置。 19 which comprises a lens located at said distal end of said haptic member on the fixture 20. Claim.
Description  translated from Chinese

液压可调节型人工晶状体 Hydraulic Adjustable IOL

背景技术 BACKGROUND

[0001] 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。 [0001] Over the years, has been in use in the intraocular lens comprises a single optical element is designed and attached to the optical portion of the lens so that the lens is centered and fixed in the empty capsular bag of the human lens ring. 在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。 In the mid-1980s the lens plate, which includes an optical section 6 mm and a length of 10.5 mm silicone lens. 这些晶状体能够折叠但却不能很好地固定在囊袋中,而是居于前囊膜和后囊膜之间的凹穴中。 These lenses can be folded but not well fixed in the capsular bag, but living in the pockets anterior capsule and posterior capsule in between. 第一代可折叠晶状体完全由硅酮制成。 The first generation of foldable lens entirely made of 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, made of acrylic resin material as the material of the lens of the optical unit. 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 lens comprises a double convex optic straight edge, ring interposed which is centered in the eye so that the lens and the lens is fixed in the capsular bag.

[0002] 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。 [0002] appeared adjustable intraocular lens on the market recently, on the whole been modified for this lens haptics (haptic) lens plate, and the plate haptic silicone lens and the same connection at the rear surface of the plate and the optical part of the no clear boundaries between. 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 lens may be defined as intraocular lens having two or more plate haptics, the haptics and the optical portion engaging plate.

[0003] 柔性丙烯酸树脂材料明显受到眼科医生的青睐。 [0003] Flexible acrylic material has obviously been an ophthalmologist ages. 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 IOL optic having an acrylic resin. 目前也出现了水凝胶晶状体。 At present, there have been a 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 hydrogel material can not be broken does not occur after repeated bending.

[0004] 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。 [0004] By repeatedly bending along the axial movement of the work can be regulated in a way to limit the emergence of the lens material of the lens can be made. 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, since 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。 Further, where the optical portion of the adjacent plate may be provided through a hinge groove or, as part of the help of the optical portion of the lens designed with respect to the outer end of the movable loop. 另一方面,丙烯酸树脂材料如果被反复弯曲将会发生断裂。 On the other hand, if an acrylic resin material is repeatedly bent will fracture.

[0005] 在J. Stuart Cumming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。 [0005] In J. Stuart Cumming signature U.S. Patent No. 6,387,126 and other patents disclose examples of this type of adjustable-type lens.

[0006] 发明内容 [0006] SUMMARY

[0007] 本发明提供了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, [0007] The present invention provides an adjustable intraocular lens having an optical department by solid silicone and liquid silicone formed

[0008] 所述光学部是圆形的并且具有固态硅酮的居中后部,该后部通过环形膜延伸至厚度大于所述环形膜的固态硅酮的周向环部,形成从所述光学部的周向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,该前部延伸至所述周向环部的前侧而且包括有单膜,该膜比所述后侧的环形膜薄并能够变形,所述光学部内的液态硅酮通过上述多个固态部和膜保持在其中,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,所述前部的较薄的膜的曲率半径能够发生改变。 [0008] The optical portion is circular and has a solid rear portion of center silicone, which extends to the rear through the annular film thickness greater than the solid silicone membrane circumferential annular ring portion, said optical portion is formed from After the optical portion further comprises a solid state and the center of the front portion, the front portion extending to the circumferential portion of the front side of the ring and comprises a single film, the ratio of the film; circumferentially extending to the outer diameter of the rear portion of the front side an annular thin membrane side and is deformable, liquid silicone within the optical portion via the plurality of solid state and a film holding portion therein, said optical unit is designed such that when pressure is applied to the vitreous cavity of the rear portion of the solid When increasing the radius of curvature of the thin film of the front portion can be changed.

[0009] 本发明的另一方面提供了一种可调节型人工晶状体,其中光学部包括: [0009] Another aspect of the present invention to provide an adjustable intraocular lens, wherein the optical unit comprises:

[0010] 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; [0010] integrated centered optical system consisting of a solid, fixed radius, having a flexible annular peripheral optical member support;

[0011] 居中的前光学部件,其包括可变形的薄膜, [0011] center of the front optical member, which comprises a deformable film,

[0012] 居中的液态光学材料,其位于所述晶状体内,[0013] 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, [0012] center of the liquid optical material, positioned within the lens, [0013] the rear of the center of the solid-state flexible optical portion, which through the annular membrane suspended from a solid annular support member, the film is thinner than said annular thickness before and smaller than said thin elastic film before,

[0014] 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 [0014] After moving the center of the liquid and compressing the optic optical materials designed to be capable of making the vitreous cavity pressure ciliary muscle contraction increases forward so that the thin film before projecting forward, which led to its radius of curvature decreases and the optical power is increased, and

[0015] 襻件,其将所述光学系统支撑在眼睛内。 [0015] loop member, which support the optical system in the eye. [0016] 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。 [0016] According to a preferred embodiment of the present invention, an adjustable-type lens comprising an optical lens having a flexible portion and a solid internal liquid optical portion, the lens preferably has two or more solid optical portion extending from the extending portion, the extending portion may be capable of bending without breaking multiple haptic plate, preferably at the distal end of the haptic plate and is provided with a pair of fixing members. 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 of the extending portion adjacent to the through provided with hinge or groove for the optical unit with respect to the outer end portion extending forward and rearward 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.

[0017] 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。 [0017] According to the present invention, the flexible optical element is a foldable silicone having a liquid silicone core, an acrylic resin or a 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 that the tab is hinged to the optical unit.

[0018] 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硅酮的比重与自然人眼的水溶液的比重相同或非常近似。 [0018] The present invention is composed of the lens and the liquid silicone is made solid silicone, solid silicone same refractive index and a liquid silicone, and the same specific gravity, and the proportion of solid silicone liquid silicone with an aqueous solution of the natural eye or very approximation. 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) prior to implantation of the human eye can be produced by changing the ways: (1) changing the radius of the rear of the optical portion; and / or (2) change in the optical portion of the lens in the manufacturing process of the liquid volume of silicone, or after implantation by the same or different refractive indices of liquid silicone injection cavity of the lens 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,这是因为其被硅酮膜所包围。 In the adaptation of ciliary muscle contraction and the vitreous cavity pressure increases in the process, after the rear surface of the solid silicone lens is pushed forward, since it is surrounded by a silicone membrane. 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 thin film before projection, thereby increasing its curvature, and thus for myopia reduces the radius of the anterior 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 can be slightly thicker at its periphery, so that the increase in pressure inside the lens will lead to an intermediate portion of the film projection. 这种结构模拟的是人体晶状体的前囊层的结构和功能。 This configuration simulates the structure and function of the human lens anterior capsule 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。 After the solid center of the optical portion may have a single or a plurality of additional spherical members or may be on one or both surfaces are aspherical. 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。 Similarly, the vitreous cavity pressure increases and thus makes it easier for the lens tilt adjustment.

[0019] 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。 [0019] Accordingly, the present invention is to provide a solid by a liquid silicone and silicone formed of a modified form of the lens can be regulated.

附图说明 Brief Description

[0020] 图I是本发明的晶状体的优选实施方式的侧视截面图。 [0020] Figure I is a side sectional view of a preferred embodiment of the lens of the present invention.

[0021] 图2是从后侧观察的该晶状体的俯视图。 [0021] FIG. 2 is a plan view of the lens viewed from the rear side.

[0022] 图3是从前侧观察的该晶状体的俯视图。 [0022] FIG. 3 is a plan view of the lens viewed from the front side.

[0023] 图4是类似于图I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。 [0023] I FIG. 4 is a cross-sectional view of the lens is similar to FIG, but shows a case in which the front portion of the lens or convex curvature increases.

[0024] [14a]图5和6示出的是截面的变型。 [0024] [14a] Figures 5 and 6 shows a cross-sectional variations.

[0025] [14b]图7-10示出的是具有不同形式的襻的本发明的晶状体。 [0025] [14b] Figure 7-10 shows a lens haptics with different forms of the present invention.

具体实施方式 DETAILED DESCRIPTION

[0026] 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。 [0026] Referring to the drawings, shown in detail a preferred embodiment, including intraocular lens having an optical portion 10 and the haptics 16. 光学部10由两个部件形成,即优选由硅酮、丙烯酸树脂或水凝胶制成的柔性固态部12(12a-12d)和内部的液态硅酮部14。 The optical portion 10 is formed by two members, i.e., preferably made of silicone, acrylic flexible solid portions 12 (12a-12d) and a portion of the interior of a liquid silicone resin or a hydrogel made 14. 固态部12a和12b足够坚硬以防止光学部10在植入人眼的纤维性组织的囊袋时发生变形。 Solid portions 12a and 12b sufficiently rigid to prevent deformation 10 occurs when implanted in a human eye fibrous tissue pouch optical unit. 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。 Flexible extension portion 16 may be capable of repeated bending without damage to the haptic plates, such as silicone and flexible extension portion 16 is formed by. 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 portion 10 and haptics 16 preferably are co-planar, two or more haptics 16 extending from an opposite side to a distance 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中公开的柔性指状部17。 The outer end of the tab 16 may include, for example Cumming U.S. Patent No. 6,387,126 discloses a flexible finger portion 17. 光学部的边缘24优选地是360的直角边缘。 The optical portion 24 preferably is at right angles to the edge of the edge of 360 .

[0027] 晶状体10包括固态硅酮部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I和图4的对比中看到的柔度。 [0027] The lens 10 comprises a solid silicone portion 12a, 12b and 12d, wherein the solid portion 12c is substantially thinner, 12c and 12d even thinner than, and thus have flexibility can be seen in Fig. I and Fig. 4 Comparative . 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 the proportion of the silicone used for this lens with 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 will not be deformed due to gravity or deformation occurred negligible. 液态硅酮14的折射率与固态部件12的折射率相同或相近。 Same or similar index of refraction and the refractive index liquid silicone solid member 14 12. 固态部12a的后部半径防止后折射面发生变形。 The rear portion 12a of the solid state after being deformed radius to prevent the refractive surface. 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 of the radius can be solid portions 12a or 12b of the lens to be changed in order to select a 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 of the lens 10 a liquid silicone 14 to change the volume of optical power.

[0028] 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I和4中向左)。 [0028] In the adjustment process, through the ciliary muscle contraction on the vitreous cavity pressure and the rear surface portion 12a is pushed forward (Figure I, and 4 to the 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 Because of the curvature of the front portion 12d projecting increases, that is the radius of the front portion 12d is reduced, as shown in Figure 4

/Jn ο / Jn ο

[0029] 图I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I中的厚度(从右至左)是3至6毫米。 [0029] Figure I in the solid state portion 12b from D to D of an exemplary overall size diameter is from 4.5 to 10.5 mm, the diameter of the solid portion 12d to up to 5 mm, and Fig. I is the thickness (right to the left) is 3-6 mm. 固态硅酮部12a和12b的典型厚度在O. 5毫米至I. 5毫米之间。 Between the typical thickness of the solid silicone portion 12a and 12b O. 5 mm to I. 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。 Thickness of the front layer 12d is very small, preferably to about the thickness of the toy balloons, and the thickness of the annular portion 12c is approximately twice that thickness so as to provide sufficient flexibility for the solid rear lens. 铰链区域18的厚度可以是O. I毫米。 The thickness of the hinge region 18 may be O. I 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" shape, may also be square groove. 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.

[0030] 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。 [0030] In addition, the optical power of the lens implanted in the human eye in the future may be changed by injecting or removing the optical unit 10 a liquid silicone.

[0031] 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。 [0031] The solid portion 12d and the diameter of the area 12a may be smaller or larger than the diameter of the rear area and, depending on the design of the lens of desired refractive index range.

[0032] [20a]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。 [0032] [20a] Referring to the embodiment of Figure 5-6, it should be noted that the front portion of the intermediate portion 12d is thinner, in the case of vitreous pressure increases, as the magnitude of the intermediate portion projecting in Figure 6 will be greater.

[0033] 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植入人眼的囊袋中。 [0033] It is well known in the art, after removal of the natural lens and intraocular lens implantation in the capsular bag of the human eye. 通过在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囊袋中。 By the body of the lens capsular bag before cutting out substantially circular openings and through the cornea or sclera small opening in the capsular bag lens insertion. 襻的外端或环定位于囊袋的盲管(cul-de-sac)中。 The outer end of the loop or ring positioned in a blind pouch tube (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(deffected)的。 Or near the outer end of the loop pipe ring is blind pouch, and regardless of the form of rings, the ring is curved (deffected) of. 可以在环的外端部上设置球形突出物以通过与纤维化组织接合来改善其在囊袋或盲管中的稳固性,在手术切除前囊袋的中央部分以后该纤维化组织在囊袋中得以产生。 May be provided on the outer end portion of the ring of knobs to engage with fibrotic tissue to improve its stability in the bladder or blind tube, after surgical removal of the central portion of the balloon before the fibrotic tissue in the pouch in is created.

[0034] 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。 [0034] As described above, the optical loop 16 adjacent the penetrating portion formed on its surface 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 portion relative to the outer ends of the haptics to move forward and backward. [0035] 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。 [0035] Thus, it has been shown and described a lens, which comprises an optical portion and the solid and liquid silicone plate haptic ring or loop, preferably with a fixed and / or on the projections at the end of each loop .

[0036] 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。 [0036] For those of ordinary skill in the later claims refer to the accompanying drawings and the present specification, various modifications, adaptations, variations and other uses and applications of the present invention will become apparent. 没有背离本发明的精神 Without departing from the spirit of the invention

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。 All such modifications, adaptations, variations and other uses and applications and the range will fall within the scope of the appended claims.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
CN101277659A22 Sep 20061 Oct 2008兴和株式会社眼内透镜
US2002/0188351 Title not available
US2005/0137703 Title not available
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