CN101888817A - 复曲面睫状沟晶体 - Google Patents

复曲面睫状沟晶体 Download PDF

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Publication number
CN101888817A
CN101888817A CN2008800160889A CN200880016088A CN101888817A CN 101888817 A CN101888817 A CN 101888817A CN 2008800160889 A CN2008800160889 A CN 2008800160889A CN 200880016088 A CN200880016088 A CN 200880016088A CN 101888817 A CN101888817 A CN 101888817A
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intraocular lenses
artificial intraocular
crystal
lenses according
toroid
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CN2008800160889A
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S·J.·卡明
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C&C Vision International Ltd
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C&C Vision International Ltd
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16—Intraocular lenses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16—Intraocular lenses
    • A61F2/1602—Corrective lenses for use in addition to the natural lenses of the eyes or for pseudo-phakic eyes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16—Intraocular lenses
    • A61F2/1613—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
    • A61F2/1637—Correcting aberrations caused by inhomogeneities; correcting intrinsic aberrations, e.g. of the cornea, of the surface of the natural lens, aspheric, cylindrical, toric lenses
    • A61F2/164—Aspheric lenses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16—Intraocular lenses
    • A61F2/1613—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
    • A61F2/1637—Correcting aberrations caused by inhomogeneities; correcting intrinsic aberrations, e.g. of the cornea, of the surface of the natural lens, aspheric, cylindrical, toric lenses
    • A61F2/1645—Toric lenses

Abstract

本发明在此公开了一种“双联”圆柱形(复曲面)人工晶体，用于放置在已经处于眼睛囊袋中的可调节或标准人工晶体的前面。该附加的晶体被放置在睫状沟中，这在该两个晶体之间留有明显的空隙，尤其是如果在囊袋中的晶体是向后拱顶的话。

Description

复曲面睫状沟晶体
背景技术
在手术之前眼长度和角膜弯曲度的仔细测量之后，即可以计算人工晶体的度数以给患者良好的视力，假定他们没有散光。散光通常是由非球面的角膜引起的，其具有两个不同的半径。
各种方法已经用于校正非球面性，被称作角膜柱镜屈光度。通过在角膜中进行切割，所谓的角膜缘松弛切开，这些已经成为使角膜变平的主要工作。通过皮层内手术切除(LASIC)或表面角膜切除(PRK)来执行其它手术技术。也已经使用人工晶体来校正角膜柱镜屈光度。最普通的校正形式就是将圆柱形表面放置在人工晶体上。这些晶体已经被或者放置在移除了人类晶状体的皮层以及核之后的囊带中，或者被放置在人类晶状体的顶部的后房中。利用接触镜来校正角膜非球面性也已经很多年了。
近来，已经发展了可调节晶体。这些晶体在眼内向后和向前移动并且当经受玻璃体腔压力增大时光学元件变形。这些可调节晶体在眼内后部拱顶并且向前移动以调节；但是，它们的最大向前移动不允许该光学元件接触放置有非可调节视镜的复曲面睫状沟。
发明内容
本发明的目的是提供“双联(piggyback)”圆柱形(复曲面)人工晶体，该人工晶体可以被放置在已经处于囊袋中的人工晶体的前面。该晶体被放置在睫状沟(sulcus)中，这在该两个晶体之间留有明显的空隙，尤其是如果在囊袋中的晶体是向后拱顶的话。
可以在开始手术期间进行植入或在初级手术之后的某个时间植入到眼中。以几个复曲面度和非球面度，并且以几个复曲面度和正、负附加度数来制造晶体。然后可以植入晶体以校正放置在后面的可调节晶体的复曲面度和/或微调该放置在后面的可调节晶体的球面度。
该晶体由生物相容光学材料来制造，例如，硅树脂、丙烯酸树酯、水凝胶或collamer，带有由聚酰亚胺、聚丙烯纺织纤维、PMMA(聚甲基丙烯酸甲酯)或任何其它生物相容材料制作的环。
晶体是有环固定或四点固定的环或板设计，并且被设计成一旦被放置在眼睛的睫状沟内，其不会适应性地转动或移动。
本发明的目的是提供一种改善的人工晶体和晶体系统。
附图说明
图1是人眼的横截面视图，示出了植入其中的本发明的晶体。
图2a是图1的“双联”晶体的平面视图，以及图2b是其侧视图。
具体实施方式
现在回到附图中，首先是图1，其提供人眼10的横截面视图，示出了其部分结构，包括角膜12、虹膜14、睫状沟16、睫状肌18、小带20和囊袋22。示出了植入在囊袋中的标准可调节IOL或标准IOL 24以及具有光学元件25和襻26。该晶体25可以是可调节或标准IOL。
根据本发明的改善是如上面所述的“双联”晶体的植入，其在图1中标定为30，并且是睫状沟复曲面晶体，该睫状沟复曲面晶体具有光学元件32、襻34和襻34的端部上的固定环36(只示出了左边的一个)。
图2a和2b还示出了双联晶体30的结构，在图2a中进一步示意了光学元件32、襻34和固定环36。晶体30不具有像可调节晶体的铰链。图2b是示出了光学元件的直径和晶体30的总长度的尺寸的侧视图。晶体30可以由任何光学可变形材料形成，诸如硅树脂、丙烯酸树脂、水凝胶或collamer。优选地，散光光学元件32具有4.5-7.0的直径X并且优选地为6.0mm，其有低球面度，对于各球面度有不同的复曲面度，例如1.00、1.50、2.00、2.50等屈光度的复曲面度。环36提供四点固定并且该环可以是聚酰胺、聚丙烯纺织纤维或PMMA。图1中的距离Y可以是11.5-14.5mm。对于复曲面晶体30的典型总长度Z是10.5-11.5mm。
虽然已经对本发明的实施例进行了示出和描述，但是在不超出本发明的范围的情况下可以对其进行各种修改，并且覆盖了所有这种修改和等同变化。

Claims (9)

1.一种人工晶体，其具有复曲面非球形表面和襻，用于放置在人眼的睫状沟内，位于放置在后面的人工晶体的前面，该放置在后面的人工晶体是双联后晶体。
2.根据权利要求1所述的人工晶体，其中该襻将该晶体在眼内定中心并且防止其转动。
3.根据权利要求1所述的人工晶体，其中该晶体由生物相容光学材料来制造，例如，硅树脂、丙烯酸树酯、PMMA、HEMA或Collamer。
4.根据权利要求1所述的人工晶体，其中该襻和光学元件由挠性光学材料制造。
5.根据权利要求2所述的人工晶体，其中该襻是板状襻。
6.根据权利要求5所述的人工晶体，其中该板状襻具有在其端部上的固定环。
7.根据权利要求1所述的人工晶体，其中环在该襻的端部上。
8.根据权利要求1所述的人工晶体，其中该晶体具有复曲面度和非球面度。
9.根据权利要求1所述的人工晶体，其中该晶体具有复曲面度和球面度。
CN2008800160889A 2007-05-16 2008-03-24 复曲面睫状沟晶体 Pending CN101888817A (zh)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US93841207P 2007-05-16 2007-05-16
US60/938,412 2007-05-16
US11/933,117 2007-10-31
US11/933,117 US20080288066A1 (en) 2007-05-16 2007-10-31 Toric sulcus lens
PCT/US2008/058025 WO2008144105A1 (en) 2007-05-16 2008-03-24 Toric sulcus lens

Publications (1)

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CN101888817A true CN101888817A (zh) 2010-11-17

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US (1) US20080288066A1 (zh)
EP (1) EP2146670A4 (zh)
JP (1) JP2010527261A (zh)
KR (1) KR20100021461A (zh)
CN (1) CN101888817A (zh)
AU (1) AU2008254386A1 (zh)
CA (1) CA2683736A1 (zh)
WO (1) WO2008144105A1 (zh)

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AU2008254386A1 (en) 2008-11-27
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JP2010527261A (ja) 2010-08-12
US20080288066A1 (en) 2008-11-20
KR20100021461A (ko) 2010-02-24
EP2146670A4 (en) 2012-10-03
WO2008144105A1 (en) 2008-11-27

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