CN102215781A - 调节性眼内透镜(aiol)胶囊 - Google Patents

调节性眼内透镜(aiol)胶囊 Download PDF

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CN102215781A
CN102215781A CN200980126914XA CN200980126914A CN102215781A CN 102215781 A CN102215781 A CN 102215781A CN 200980126914X A CN200980126914X A CN 200980126914XA CN 200980126914 A CN200980126914 A CN 200980126914A CN 102215781 A CN102215781 A CN 102215781A
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capsule
aiol
human eye
dish
fixing feet
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约书亚·本纳
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Nulens Ltd
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/14Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16Intraocular lenses
    • A61F2/1613Intraocular 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/14Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16Intraocular lenses
    • A61F2/1613Intraocular 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
    • A61F2/1624Intraocular 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 having adjustable focus; power activated variable focus means, e.g. mechanically or electrically by the ciliary muscle or from the outside
    • A61F2/1635Intraocular 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 having adjustable focus; power activated variable focus means, e.g. mechanically or electrically by the ciliary muscle or from the outside for changing shape
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/14Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16Intraocular lenses
    • A61F2/1613Intraocular 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
    • A61F2/1648Multipart lenses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/14Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16Intraocular lenses
    • A61F2002/1681Intraocular lenses having supporting structure for lens, e.g. haptics
    • A61F2002/1683Intraocular lenses having supporting structure for lens, e.g. haptics having filiform haptics
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2220/00Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0008Fixation appliances for connecting prostheses to the body

Abstract

调节性眼内透镜(AIOL)胶囊具有在非压缩状态的第一较佳的零屈光强度和从后方向施加轴向挤压力时压缩状态的第二屈光强度之间连续可变屈光强度,第二屈光强度不同于它的第一屈光强度。该AIOL胶囊包括:含有前胶囊盘、后胶囊盘及胶囊环,用于划定填有胶囊填充物的密封腔。所述前胶囊盘可在施加从后方克服该前胶囊盘的轴向压力时沿人眼视轴向前凸出。

Description

调节性眼内透镜(AIOL)胶囊
发明领域
本发明涉及调节性眼内透镜(AIOLs)
背景技术
授权于调节性透镜组件的并于2003年2月27日在PCT国际公开号WO 03/015669公布的普遍拥有的PCT国际申请号PCT/IL02/00693阐明和描述了调节性眼内透镜(AIOL)组件,其内容并入这里供参考。AIOL组件每个包括固定脚(hapatics)系统,适合于在至少两个间隔开离的锚定点稳固地固定在人眼环形睫状沟内(annular ciliary sulcus),所以它可担当为AIOL的基准面,AIOL屈光强度在它类似括约肌的睫状体控制下,由人眼胶囊横隔膜作用下可连续变化,并且作用方向与后方向相反。固定脚系统包括带有可滑动延伸的伸缩式固定脚构件的刚性平坦固定脚盘。AIOL可不必由单个元件或单种材料制成。例如,AIOL可以是充有液体或凝胶体的胶囊形式。固定脚盘和固定角构件较佳地是自锚定式的,如授权于眼内透镜的并于2002年8月29日在PCT国际出版号WO 02/065951公布的普遍拥有的PCT国际申请号PCT/IL02/00128中所阐明的描述的,其内容并入这里供参考。
授权于调节性眼内透镜组件和调节测量植入件的并于2005年11月10在PCT国际公开号WO 2005/104994公布的普遍拥有的PCT国际申请号PCT/IL2005/000456阐明和描述了AIOL组件,该AIOL组件允许在植入后原位置手动选择AIOL沿人眼的视轴相对于至少两间隔分开的静止锚定点到一个所希望位置的位移量,以保证AIOL组件在人眼睫状体收缩状态时呈现非挤压状态,其内容并入这里供参考。这样的原位置手动选择位移能在植入后实行胶囊收缩的校正,这种胶囊收缩校正是一种在人眼内自然晶状体摘除后会持续数个月的自然反应,并也是用最小的临床干预在规定时间之外改变视力。这样的手动选择位移能按如下方式实行:首先,用于保持相对于那儿可手动移动的离散(分离)的AIOL的一个离散(分离)的固定脚系统。第二,带有至少两个固定脚的固定脚系统,为了整体构成的AIOL的原位置手动位移,这两个固定脚含有能进行塑性变形的辐射敏感区。
授权于调节性眼内透镜(AIOL)组件的共同拥有的PCT国际申请号PCT/IL2006/000406,及为此于2006年10月5日PCT国际公开号WO 2006/103674公布的离散(分离)的元件阐明和描述了具有下面功能的AIOL组件:允许植入后原位置手动选择AIOL沿人眼视轴相对于至少两个间隔开的静止锚定点到所需位置的位移量,以保证AIOL在人眼睫状收缩状态时呈现非挤压状态,其内容并入这里供参考。WO 2006/103674还进一步阐明和描述了用于自锚定植入在人眼环形睫状沟内的较佳的安装盘(片或板)(见图4)。
WO 2006/103674进一步阐明和描述了包含由刚性生物适合材料构成的并带侧孔的壳体的AIOL。该壳体含有一对形状记忆圆盘形光学元件,包括前光学元件和后光学元件。后光学元件用来凸进前光元件,而前光元件用来辐射状凸出穿过壳体的侧孔。
授权于整体调节性眼内透镜(AIOLs)的共同拥有的PCT国际申请号PCT/IL2008/000284和于2008年9月12日公开的PCT国际公开号为2008/107882的专利描述了整体AIOLs以及与之使用的分离(离散)构件,用来既可与典型地在同一外科手术期间直接在AIOL之前植入的为特定目的设计的分离(离散)基底构件或与先前植入的作为离散基础(基底)构件的标准无问题IOL一起使用,其内容并入这里供参考。作为选择,整体AIOLs能设计成能单独地与为特定目的设计的离散基底构件一起使用。整体AIOLs较佳地包括所谓的垂直调整机构(VAM),允许它们的光学元件相对它们静止锚定点作原位置纵向位移。VAMs由含有用于引入局部加热的辐射灵敏棒的每个固定脚来实行。
为特定目的设计的离散基底构件包括带有相对的前端和后端的延长的基本平坦的主体。基底构件包括中心柱塞元件和其厚度逐渐变小的侧翼,这样,它们在植入时容易灵活地适应人眼胶囊横隔膜的自然曲率。为在植入人眼时轴向地使整体AIOL与离散基底构件对准,柱塞构件较佳地应形成有对准元件。另外,为了对准目的并也有助于AIOL的控制前凸出,柱塞构件能用圆形凸出控制核构成,该AIOL包含一个带有后表面的学元件,后表面含有互补的圆形凹进区。离散基底构件可以改变,以满足不同临床情况和/或如果如此需要可随意地提供额外正屈光力(度)(Diopter power)。
发明内容
本发明直接涉及含有下面结构的调节性眼内透镜(AIOL)胶囊(Capsules):有一般是盘形有弹回弹性的可压缩形状记忆结构,具有在非压缩状态的第一较佳的零屈光强度和从后方向施加轴向挤压力时压缩状态的第二屈光强度之间连续可变屈光强度,第二屈光强度不同于它的第一屈光强度。该AIOL胶囊包括:含有前胶囊盘、后胶囊盘及胶囊环的胶囊壳体,用于划定用透明胶囊填充的密封腔,该透明胶囊由折射率比人眼房水高的凝胶体或液体填充构成。前和后胶囊盘较佳地由含有从约20和约80之间的肖氏硬度A级(Shore range A)的硬度率的生物适合透明塑料制成。合适凝胶体具有低于肖氏硬度标度的测量范围的硬度率,即低于肖氏硬度00级的可测量值,并因此用透度计在渗透测试中测量。为了便利于在由人眼产生的相当小的挤压力下有意地前凸出,能实行具有一个或多个功能的AIOL。
AIOL胶囊较佳地按类似于前述的PCT国际出版号WO 2008/107882的整体AIOLs提供,该整体AIOLs带有完整构成的刚性固定脚系统,该固定系统带有一对径向相对延长的一般C形固定脚,用于自锚定在人眼睫状沟内。或者,在人眼内带有固定脚系统的原位置组件,AIOL胶囊可以是离散单元,因此它们能通过比整体AIOL情况时小的切口将它们插入人眼内。
AIOL胶囊可改变成:能按与前述的PCT国际公告号WO 2008/107882的一种类似方式既能与为特定目的设计的离散H形基底构件也能与先前植入的标准无问题IOL一起使用。在后一种情况中,一个中间睫状沟固定的屈光强度眼内透镜可植在标准无问题IOL和本发明AIOL胶囊之间。AIOL组件可设计成在非挤压状态具有零屈光强度或正屈光强度,以满足特殊的临床情况。正屈光强度既可由离散基底构件或由包括带有凸起后表面的后胶囊盘的AIOL胶囊提供。在后一种情况中,这样的AIOL胶囊可以与带通孔有的垫圈形基底构件一起植入,AIOL胶囊的凸起后表面延伸穿过该通孔,直接与人眼的胶囊横隔膜接触。H形基底构件和垫圈形基底构件也能与整体AIOLs一起使用,如前述PCT国际公告号WO 2008/107882中所披露的。
固定脚系统较佳地包括:含有位于带有横梁的每个触觉上的生物适合的能量吸收U形夹子的垂直调整机构(VAM),U形夹子在AIOL组件植入人眼时面朝前方向。为了热保护,夹子较佳由生物适合硅(凝)胶(体)保护。夹子可随意地用液态硅树脂(胶)施加的经干燥的生物适合炭来覆盖。
除了本发明的安装盘包括与单个安装孔相反的一对并列的安装孔之外,该固定脚系统可较佳地包括类似于前述PCT国际公告WO 2006/103674的安装盘的一个安装盘。并列安装孔有利于同时使用两个不同手持植入工具,用于将AIOL组件植入人眼内。
附图说明
为了解本发明并领会它是如何实际实现的,现在仅通过非限制性范例,参考附图描述较佳实施例,在附图中相似部分以相同的数字标出,并在附图中:
图1是人眼前部在人体轴平面自然近距视觉时睫状体收缩状态的横截面图;
图2是人眼前部在人体轴平面自然远距视觉时睫状体放松状态的横截面图;
图3是AIOL组件的分解图,包括:触觉系统,AIOL胶囊和特定目的设计的H形基底构件;
图4是含有植入人眼内的图3的AIOL组件的人眼正视图;
图5是图3触觉系统和AIOL胶囊在非压缩状态的沿图4的A-A线的纵向截面图;
图6是图3的AIOL胶囊在非压缩状态的沿图4的A-A线的纵向截面图;
图7是图3的AIOL胶囊在压缩状态的沿图4的A-A线的纵向截面图;
图8是带有触觉的触觉系统前立体图,每个触觉并入有依据本发明的VAM(垂直调整机构);
图9是VAM的分解图;
图10是VAM的U形夹子放大的前立体图;
图11是VAM沿图8的B-B线的横截面图;
图12是图3的H形基底构件的平面图;
图13是图3的H形基底构件沿图12的C-C线的横截面图;
图14是人眼前部的纵向横截面图,示出人眼睫状体收缩状态时图3的AIOL组件在人眼轴平面的部署;
图15是人眼前部的纵向横截面图,示出人眼睫状体放松状态时图3的AIOL组件在人眼轴平面的部署;
图16是依据本发明另一个实施的带有胶囊壳的AIOL胶囊的侧视图,胶囊壳带有圆角前内表面;
图17是图16的AIOL胶囊沿图16的D-D线的横截面图;
图18是依据本发明另一个实施例的带有胶囊壳的AIOL胶囊的侧视图,胶囊壳带有能会聚于沿它纵轴前方向的圆锥区形密封腔;
图19是图18的AIOL胶囊沿图18的E-E线的横截面图;
图20是依据本发明另一个实施例的带有胶囊壳的AIOL胶囊的侧视图,胶囊壳带有能会聚于沿它纵轴后方向的圆锥区形密封腔;
图21是图20的AIOL胶囊沿图20的F-F线的横截面图;
图22是图20的AIOL胶囊的一种变化的侧视图;
图23是图22的AIOL胶囊沿图22的G-G线的横截面图;
图24是带有随其使用的可选后胶囊盘和垫圈形基底构件的图16胶囊壳的立体图;
图25是图24胶囊壳和垫圈形基底构件沿图24的H-H线的横截面图;
图26是带有形成有凸出控制元件的后胶囊盘的图16的AIOL胶囊的横截面图;
图27是带有形成有凸出控制元件的后胶囊盘的图20的AIOL胶囊的横截面图;
图28是带有形成有凸出控制元件的后胶囊盘的图22的AIOL胶囊的横截面图;及
图29是带有形成有凸出控制元件的后胶囊盘的图24的AIOL胶囊的横截面图。
具体实施方式
图1和2是人眼10前部的横截面图,在它的自然近距和远距视觉情况下在人眼轴平面分别含有视轴VA。人眼10含有角膜11,角膜11外围连接到在环形巩(膜)角膜结合点13由称作为巩膜(sclera)12的坚韧结缔体素组成的球形外体。虹膜14从在巩(膜)角膜结合点(sclero-corneal juncture)13的虹膜根部16向内延伸进人眼10,以将人眼前面部分分成前房17和后房18。称作为睫状体19的括约肌型外围结构包括由副交感神经激励的睫状突壳体睫状肌21。睫状肌21连接到小带纤维22,小带状纤维22依次外围地连接到称作为胶囊袋23的隔膜赤道边。胶囊袋23含有覆盖在自然晶状体27上的前胶囊24和后胶囊26。虹膜根16和睫状体19在称作为睫状沟28的巩(膜)角膜接合点13的巩膜12的部分的划定内表面的界线。前胶囊24的其余部分在这里称作为胶囊横隔膜(capsular diaphragm)29,可能是提取自然晶状体27和完整后胶囊26后剩余的。睫状体19的收缩允许晶状体27使沿视轴VS的自然厚度T1变厚,以在近距视觉时获得较大的正光强度(见图1)。睫状体19的放松拉紧小带状纤维22,小带状纤维22如箭头A所的放射状地向外拉胶囊袋23,挤压晶状体27以使它的厚度沿视轴VA缩短到T2<T1,以在远视觉时获得较底的正光强度(positive optical power)(见图2)。
图3到图5示出一种AIOL构件300,包括:与固定脚系统300一起使用以自锚定在人眼睫状沟28内的AIOL胶囊200和置于AIOL胶囊200和人眼胶囊袋23之间用于将轴向挤压力从那里转移到AIOL胶囊200的为特定目的设计的离散H形基底构件400。作为选择,AIOL胶囊200可与一个先前植入的标准无问题IOL一起使用。AIOL组件100含有一条纵轴101,植入人眼10内时,纵轴101有意平行于且较佳地共轴于人眼视轴VA。AIOL胶囊200和固定脚系统300较佳地用例如胶合,焊接和类似方法的传统装配技术进行预装配。
AIOL胶囊200包括纵轴201,有意在AIOL组件100植入人眼内时与AIOL组件纵轴101共轴。AIOL胶囊200含有一般是圆盘形的有弹回弹性的可压缩的形状记忆结构。AIOL胶囊200包括胶囊壳体202,胶囊壳体含有:暴露的前表面203,相对于并平行于前表面203的曝露后表面204,以及延伸在前表面203和后表面204之间的圆周面206。胶囊壳体202能在挤压力自后方向施加到后表面204时,能沿人眼视轴VA向前凸出。AIOL胶囊200具有连续可变屈光强度,屈光强度变化范围在非压缩状态(见图6)的第一个较佳0屈光强度和沿图6箭头C所示施加轴向挤压力的压缩状态的第二个屈光强度(见图7)之间,第二个屈光强度不同于第一个0屈光强度。
图3到图5示出含有纵轴301的固定脚系统300,纵轴301可在AIOL组件100植入人眼内时共轴于AIOL组件纵轴101。固定脚系统300含有固定脚长度L并包括固定脚固定脚外径D1的管状固定脚主体302。固定脚长度L的一般尺寸为11至14毫米而固定脚主体外径D1为5至7毫米。固定脚主体302含有限定一最好是圆孔304的前端面303和一个相对的后端面306,通过圆孔304在从后方向施加轴向挤压力时AIOL胶囊200向前凸出通过它。固定脚主体302较佳地设计成:在施加图3表示为F的钳形挤压力时固定脚主体302是可压挤的,这样它们可临时并可逆地呈现椭圆形状,以减少它们的宽度,以便纵向插进一个小角膜切口以有助于植入。固定脚系统300由例如PMMA(聚甲基丙烯酸甲酯),或类似材料的适当刚性的生物相容的透明聚合物材料制成。
图3和图8到图11示出含有一对径向相对延长的一般为C形的固定脚307的固定脚系统300,这一对C形固定脚307在与垂直于纵轴301的一个平面内按相对方向延伸。固定脚307在垂直于纵轴301的平面有一个薄外形,这样在用传统眼外科手术工具施加适当外力时有足够的柔韧性,使C形固定脚能按图3箭头B所示环绕固定脚主体302,便利于能通过相当小的切口插进人眼。图3用虚线示出固定脚307,以示出它环绕固定脚主体302。固定脚307沿纵轴301有一个宽外形,这样固定脚307对沿纵轴的压挤力具有一定刚性。固定脚的宽外形较佳应从邻近固定脚主体302的最近端307A到离那儿最远的末梢端307B是逐渐变窄的,并在叉形安装面308终止。
安装盘(片)308包括:一对带有尖端311的间隔分开的穿刺构件309,最小的尖端间隔TS至少为1毫米,而较佳地应在约2毫米和3毫米之间,最小的尖端高度TH应至少为0.5毫米,这样它们能刺入的深度稍大于约1毫米巩膜厚度的一半,由此提供AIOL组件100的锚定点。安装片308包括一对并列的操作孔312,便于同时使用两个不同的手持植入工具将AIOL组件植入人眼内。操作孔312较佳地具有约1.5毫米中心间距的最小操作孔间隔MHS和约为0.5毫米的直径。
每个固定脚307包括垂直调整机构(VAM)320,由此能在原位置使固定脚主体302相对于AIOL组件100的锚定点沿视轴VS作纵向位移,控制固定脚主体302相对于人眼胶囊横隔膜29的位置。万一AIOL组件100放置的太后或作为选择地万一人眼胶囊横隔膜产生过大压力时,VAMs 320能在原位置校正AIOL组件100的位置。VAMs 320包括提供每个固定脚307带有邻近于胶囊主体302的热变形区321,用来受由外部能源的局部加热。
每个VAM 320包括能量吸收U形夹子322,用于夹在邻近于固定脚主体302的各自固定脚307上。U形夹子322含有延伸在一对相对脚324之间的横梁323,夹子322用来夹在各自固定脚307上,这样它们各自横梁323被预先定向。夹子322较佳地应由例如钛或类似金属的低热特种金属制成。夹子322较佳地通过可干燥的液态硅来涂敷生物适合炭黑来覆盖。炭黑326依次较佳地由生物适合的硅凝胶体327覆盖以利热保护。例如例如在视网膜激光凝固法(retinal photocoagulation),激光小梁成形术(laser trabeculopasty),或类似治疗法中,用来用适当的激光对夹子322进行辐射,以允许它们各自热变形区321局部加热到稍高于人眼正常温度摄氏36度的一个温度,但应足够低以不会损伤人眼精致的内部组织。合适的激光系统包括:除了其他之外,Oculight SL 810纳米红外线激光凝固器)Infrared Photocoagulator),商业上可从美国加利福利亚州的IRIDEX公司得到,网址:www.iridex.com
图5到图7示出胶囊壳体202,包括:带有暴露的前表面207A和隐蔽的后表面207B的一般圆形的前胶囊盘207,含有隐蔽的前表面208A和暴露的后表面208B的后胶囊盘208,及延伸在前和后胶囊盘207和208之间的并具有相对的前轮缘209A和后轮缘209B的胶囊环209。胶囊环前轮缘209A接合到前胶囊盘207而它的后轮缘209B接合到后胶囊盘208。前表面207A组成AIOL胶囊暴露的前表面203,后表面208B组成AIOL胶囊暴露的后表面204,而胶囊环209组成AIOL胶囊的圆周面206。前胶囊盘207、后胶囊盘208和胶囊环209限定密封腔211。前胶囊盘207和胶囊环209以直角接合,给密封腔211提供尖前轮缘211A。
前胶囊盘207、后胶囊盘208和胶囊环209是由生物适合的透明聚合物材料制成。适合的聚合物材料较佳地应是硅基的并具有约20和80之间的Shore(肖氏硬度计)A级的硬度范围。合适的硅基聚合物材料商业上可从美国NuSil Technology LLC(NuSil技术有限公司)获得(www.nusil.com)。腔211用生物适合透明胶囊填充,透明胶囊由凝胶体或液体填充制成。合适的凝胶体较佳地是硅基的和具有低于肖氏硬度计00级测量范围的硬度率并因此仅可用透度计以穿剌法行测量。合适的硅基凝胶体商业上可从美国NuSil技术有限公司获得(www.nusil.com)。
前胶囊盘207和胶囊环209较佳地制成为单个碗形胶囊壳212,后胶囊盘208是背侧安装在碗形胶囊壳212上,以对腔体211进行密封。后轮缘209B较佳地向外延伸,以提供环形法兰213,紧靠着AIOL胶囊200和固定脚系统300的组件上的固定脚主体的后端面306。前胶囊盘207较佳地包括:用来承受向前凸起的内层薄圆形区214和连接到胶囊环的前轮缘209A的厚支撑环216。起作AIOL胶囊的主光孔的薄圆形区214具有3.5到5.5毫米范围的直径D2。薄圆形区214具有通常在20到60微米范围的厚度。
后胶囊盘208包括带有外围环形法兰218的中心胶囊填充的位移构件217,用来背侧安装到环形法兰213上。胶囊填充位移构件217和法兰218分别含有用于构成后胶囊盘前表面208A的前表面217A和218A,胶囊填充位移构件217和外围环形法兰218分别含有用于构成后胶囊盘的后表面208B的后表面217B和218B。法兰218能承受反复来回挠曲,以允许胶囊填充位移构件217相对于胶囊环209作往复运动,以引起反复地向前凸出。在没有轴向挤压力C的AIOL胶囊非压缩状态时,胶囊填充位移构件217和法兰218含有同平面前表面217A和218A(见图6)。后胶囊盘208含有带胶囊填充位移构件的后表面217B的阶梯状后表面208B,该阶梯后表面208B相对于法兰盘的后表面218B向后凸出。在相反施加的轴向挤压力时,胶囊填充位位移机构的后表面217B担作为AIOL胶囊后表面204。图7示出在对胶囊填充位移构件的后表面217施加轴向挤压力C时,支撑环216和法兰218离它们无挠曲位置的前挠曲,作为胶囊填充位移构件的后表面217B与虚线基准线分离的例子。
图12和图13示出含有纵轴401的基底构件400,在植入人眼时可同轴于AIOL组件的纵轴101。基底构件400含有一个充分拉长的平坦主体402,平坦主体402带有相对的主前表面403和后表面404。基底构件401较佳地由柔韧生物适合的透明聚合物(体)材料制成,以允许可折叠地通过小切口插入人眼并符合于人眼植入处的人眼胶囊横隔膜的自然曲率。合适的聚合体材料包括,例如,HydroxyEthylMethaAcrylate(HEMA),或类似产品。
主体402含有相对的前端406和后端407,这两端限定具有约13至15毫米直径的虚圆408,这充分地符合于人眼横隔膜的自然曲率并充分延伸到人眼的睫状沟28的相对位置。主体402含有同轴于纵轴401的中心柱塞构件409。中心柱塞构件409含有前工作面411和后工作面412。前工作面411相对于周围的主前表面403较佳地应是凹陷的,因此有效地造成用于容纳胶囊填充位移构件后表面217B的一般圆形凹陷区,保证AIOL胶囊200和基底构件400之间的正确对准排列。后工作面412较佳地应是凸起的,以提供直到约18屈光强度(Diopter strength)。前端406含有第一对间隔分开的侧翼413,而后端407含有相对的一对间隔分开的侧翼414,这两对侧翼从柱塞构件409起幅射状延伸,因此在图12俯视图中给基底构件400提供大体上的H形。
图14和图15示出:植入人眼内的AIOL组件100,以及在人眼晶状体分别在收缩状态时它的非挤压状态和人眼晶状体放松状态时它的挤压状态之间的工作情况。
图16和图17示出:结构上类似于AIOL胶囊200的AIOL胶囊230,因此相同的部件用相同的数字标出。AIOL胶囊230也可与H形基底构件400一起使用。AIOL胶囊230包括胶囊壳231,用于与后胶囊盘208密封构成密封腔232。胶囊壳231含有圆角前内表面231A,提供有一邻近于前胶囊盘207的圆形前轮缘232A的密封腔232,有助于向前凸出。
图18和图19示出:结构上类似于AIOL胶囊200的AIOL胶囊235,因此相同的部件用相同的数字标出。AIOL胶囊235也可与H形基底构件400一起使用。AIOL胶囊235包括胶囊壳236,用于由后胶囊盘208密封构成密封腔237。胶囊壳236含有成角度的前内表面236A,提供有一按沿纵轴201的一个向前方向会聚的圆锥截面的密封腔237。密封腔237含有与纵轴201成角度α=45°±10°的一条母线238。
图20和图21示出:结构上类似于AIOL胶囊200的AIOL胶囊240,因此相同的部件用相同的数字标出。AIOL胶囊240也可与H形基底构件400一起使用。AIOL胶囊240与AIOL胶囊200的不同之处在于:胶囊240包括带有按沿纵轴201的向后方向会聚的圆锥截面的密封腔241,有助于向前凸出。这个密封腔结构由AIOL胶囊240实现,AIOL胶囊240包括:带有额外收敛管状壁243的胶囊壳242,该管状壁243从它前胶囊盘207和胶囊环209之间的接合点延伸。收敛管状壁243在后轮缘244终止,相对于胶囊后轮缘209B沿纵轴201凹进。圆盘形后胶囊盘246是背侧安装在后轮缘244上而不是安装在环形法兰213上,并按沿纵轴201远离胶囊环的后轮缘209B的后方向延伸。收敛管状壁243可在施加轴向挤压力C时按箭头D所示向内朝纵轴201凸出,有助于向前凸出。
图22和图23示出:结构上类似于AIOL胶囊200的AIOL胶囊250,因此相同的部件用相同的数字标出。AIOL胶囊250也可与H形基底构件400一起使用。AIOL胶囊250与AIOL胶囊240的不同之处在于:前者的收敛管状壁243的后轮缘244按沿纵轴201的后方向,在胶囊环的后轮缘209B的远端突出。薄圆盘形后胶囊盘246安装在后轮缘244上。收敛管状壁243可在施加轴向挤压力C时按箭头D所示,向内朝纵轴201凸出,有助于向前凸出。
图24和图25示出带有后胶囊盘260和于此使用的垫圈形基底构件430而不是基底构件400的胶囊壳231。后胶囊盘260包含背侧安装到胶囊壳231的前表面260A和后表面260B,后表面260B含有直接与人眼的胶囊横隔膜接触的中心凸起面261和圆形法兰262。垫圈型基底构件430包括中心大通孔431,中心凸起面261可延伸穿过该大通孔。
图26到图29示出:后胶囊盘208,246和260可另外随意地形成凸出控制元件270,用于居中向前凸出。凸出控制元件270相对于它们前表面的一般高度在约0.4毫米到约0.6毫米之间。这样的凸出控制元件270较佳地应具有与其他的光学元件相同的折射率,以避免在它们的界面出现偏差。凸出控制元件270可具有球形,拉平钟状形和类似形状。
虽然相对于有限数量的实施例已描述了本发明,将赏识到对本发明所做的许多变动,修改及其他应用都落在所附权利要求书的范围内。

Claims (16)

1.一种植入人眼内的调节性眼内透镜(AIOL)胶囊,所述人眼包括:视轴,粗糙结缔体素的巩膜,环形睫状沟,和括约肌型睫状体,在从收缩睫状体状态到放松睫状体状态的睫状体放松时该括约肌型睫状体沿所述视轴按前方向拉紧胶囊横隔膜;
所述AIOL胶囊用于与刚性固定脚系统一起使用,所述固定脚系统含有纵轴和固定脚主体,所述固定脚主体带有至少两个延长的一般为C形固定脚,所述固定脚在垂直于所述人眼视轴的平面内按相反的方向从那里延伸,所述每个固定脚在含有至少一个尖穿刺构件的安装盘处终止,所述尖穿刺构件用于剌入所述人眼巩膜的所述粗糙结缔组织,以在至少两个间隔分开的静止锚定点自锚定植入所述人眼的环形睫状沟内,以将所述AIOL保持在所述人眼内,
所述固定脚每个包括邻近于所述固定脚主体的一个垂直调整机构,所述垂直调整机构在由外部能源局部加热时是可变形的,以允许植入后使所述AIOL沿所述人眼视轴相对于所述至少两个间隔分开的静止锚定点作原位置选择的轴向位移,
所述AIOL胶囊含有在植入人眼时可与所述人眼视轴共轴的一条纵轴,并包括胶囊壳体,所述胶囊壳体包括:透明前胶囊盘,平行于并相对于所述前胶囊盘的透明后胶囊盘,及延伸在所述前和后胶囊盘之间且含有连接到所述前胶囊盘的前轮缘和连接到所述后胶囊盘的后轮缘的胶囊环,
所述前胶囊盘,所述后胶囊盘和所述胶囊环限定了用透明填充物填充的密封腔,
所述前胶囊盘含有暴露前表面,而所述后胶囊盘含有暴露后表面,
所述后表面在按与后方向相反的方向施加或未施加轴向挤压力时能经受相对于所述胶囊环来回重复的弯曲,
所述前表面在施加所述轴向挤压力时能沿所述人眼视轴向前凸出,而在未施加所述挤压力时返回到非弯曲位置,
由此,所述AIOL胶囊具有在非挤压状态的第一屈光强度和施加所述轴向挤压力的挤压状态的第二屈光强度之间的连续可变屈光强度范围,所述第二屈光强度不同于所述第一屈光强度。
2.按照所述权利要求1所述AIOL胶囊,其特征在于,所述胶囊壳体包括单个碗形胶囊壳,所述单个碗形胶囊壳由所述前胶囊盘和用于划定所述腔体的所述胶囊环构成,并且所述后胶囊盘用于背侧安装在所述碗形胶囊壳以密封所述腔体。
3.按照所述权利要求1或2所述AIOL胶囊,其特征在于,所述胶囊壳体包括圆角前内表面,用于划定带有邻近于所述前胶囊盘的圆形前轮缘的密封腔。
4.按照所述权利要求1或2所述AIOL胶囊,其特征在于,所述胶囊壳体包括成角度前内表面,用于划定具有圆锥区形的密封腔,所述圆锥区形会聚于沿所述AIOL胶囊纵轴的前方向。
5.按照所述权利要求1或2的所述AIOL胶囊,其特征在于,所述胶囊壳体包括从所述前胶囊盘和所述胶囊环之间的接合点向后面延伸的收敛管状壁,用于划定带有按沿所述AIOL胶囊纵轴的后方向收敛的圆锥区域形的密封腔。
6.按照所述权利要求5所述AIOL胶囊,其特征在于,所述收敛管状壁包括按沿所述AIOL胶囊纵轴的后方向伸过所述胶囊环的后轮缘。
7.按照权利要求1到6中任何一权利要求所述AIOL胶囊,其特征在于,所述后胶囊盘包括含有后表面的中心胶囊填充位移构件和含有后表面的外围环形法兰,其中,所述胶囊填充位移构件的后表面可相对于所述环形法兰的后表面沿所述AIOL胶囊的纵轴向后突出,由此所述后胶囊盘含有梯状后表面。
8.按照权利要求7所述AIOL胶囊,其特征在于,所述胶囊填充位移构件含有平坦后表面。
9.按照权利要求1到7中任何一个权利要求所述AIOL胶囊,其特征在于,所述后胶囊盘含有凸起后表面。
10.按照权利要求1到9中任何一个权利要求所述AIOL胶囊,其特征在于,所述后胶囊盘含有有助于所述前凸出的凸起前表面。
11.一种与依据所述权利要求1到10中任何一个权利要求的用于AIOL的固定脚系统,其特征在于,所述垂直调整机构包括安装在固定脚上的并带有横梁的生物适合的能量吸收U形夹子,所述U形夹子在所述固定脚系统植入人眼后面朝前方向。
12.按照权利要求11所述固定脚系统,其特征在于,所述U形夹子包括有色的能量吸收遮盖物。
13.按照权利要求11所述固定脚系统,其特征在于,所述安装盘包括一对并列的操作孔。
14.一种与依据所述权利要求1的AIOL一起使用的离散基底构件,其特征在于,所述基底构件含有一条纵轴,用于共轴对准于植入人眼时的所述AIOL胶囊的纵轴,并包含带有相对的较大前表面和后表面的延长的基本是平坦的主体,和用于手动操作安装至所述人眼睫状沟内的基本上是相对的位置的相对的前端和后端,
所述主体在俯视图中呈一般H形状并包括中心柱塞构件,所述柱塞构件带有前工作表面和后工作表面和从那里径向延伸的相对的一对间隔分开侧翼,并含有末端,其中一对所述侧翼构成所述前端,而所述另一对所述侧翼构成所述后端,
在所述人眼的胶囊横隔膜拉紧时,促使所述前工作表面靠着所述胶囊壳体的后表面,以便从后方向施加一轴向挤压力。
15.与根据权利要求8的AIOL胶囊一起使用的按照权利要求14所述基底构件,其特征在于,所述主体包括居中于所述基底构件纵轴的一般是圆形凹陷区,用于容纳所述胶囊填充位移构件的平坦后表面。
16.一种与依据权利要求9的AIOL一起使用的离散垫圈形基底构件,其特征在于,所述基底构件含有与植入人眼内的所述AIOL胶囊纵轴共轴对准的纵轴,并包括带有相对的较大前表面和较大后表面的充分延长的平坦主体,及相对的前端和后端,
所述主体含有中心大通孔,用于自由地容纳从该孔穿过的所述胶囊壳体的凸起后表面,便于在植入人眼时直接接触人眼的胶囊横隔膜。
CN200980126914XA 2008-07-24 2009-07-26 调节性眼内透镜(aiol)胶囊 Pending CN102215781A (zh)

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JP5276165B2 (ja) 2013-08-28
EP2315559B1 (en) 2012-01-25
US8398709B2 (en) 2013-03-19
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WO2010010565A3 (en) 2010-07-15
CA2726353A1 (en) 2010-01-28
IL210038A0 (en) 2011-02-28
EP2315559A2 (en) 2011-05-04
AU2009275149A1 (en) 2010-01-28
ATE542494T1 (de) 2012-02-15
ES2377456T3 (es) 2012-03-27
WO2010010565A2 (en) 2010-01-28

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