CN1290515A - 一种可调节性人工晶体 - Google Patents

一种可调节性人工晶体 Download PDF

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Publication number
CN1290515A
CN1290515A CN 00119055 CN00119055A CN1290515A CN 1290515 A CN1290515 A CN 1290515A CN 00119055 CN00119055 CN 00119055 CN 00119055 A CN00119055 A CN 00119055A CN 1290515 A CN1290515 A CN 1290515A
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crystal
bag
artificial
artificial crystal
loop
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CN 00119055
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赵明
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Individual
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Individual
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Priority to CN 00119055 priority Critical patent/CN1290515A/zh
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Abstract

本发明公开了一种植入囊袋内的具有调节功能的人工晶体,其袢的根部弹性小于体部、尾部弹性。人工晶体植入晶体囊袋后,当晶体悬韧带紧张时,晶体囊袋紧张,人工晶体袢尾部与晶体赤道部接触处囊袋向心收缩,人工晶体根部和体部弯曲,人工晶体光学部后移,从而减少人工晶体在眼内的调节力,视网膜成像清晰,使人工晶体视近、视远效果更佳。

Description

一种可调节性人工晶体
本发明涉及植入囊袋内的人工晶体技术。
目前，临床使用的人工晶体可分为单焦、双焦和多焦人工晶体。其缺点是：1、单焦人工晶体无调节力，其袢的各部位弹性相等或相近，袢的作用是固定人工晶体的光学部，保持人工晶体光学部的稳定。2、双焦、多焦人工晶体虽然有一定的拟调节力，但是仍存在缺点，如视网膜成像的对比度低、分辩力差、相邻色相混等，限制了其应用。而且，这种拟调节作用是非生理性的，其调节幅度难以达到近距离视物的理想要求。
本发明目的是发明一种能在眼内有调节力的人工晶体，使白内障术后具有良好的视近、视远能力。
为实现上述目的，本发明解决方案是：与连接光学部的袢根部弹性小于体部、尾部弹性。
当人工晶体植入晶体囊袋内后，晶体悬韧带松驰时，晶体囊袋松驰，人工晶体袢处于原始状态，人工晶体袢尾部间距离大于晶体囊袋直径，使晶体囊袋适当扩张呈椭圆型。当晶体悬韧带紧张时，晶体囊袋紧张，人工晶体袢尾部与晶体赤道部接触处囊袋向心收缩，人工晶体袢根部和体部弯曲，人工晶体光学部后移，从而减少人工晶体在眼内的调节力，使视网膜成像清晰。
结合附图对本发明作进一步说明。
图1是本发明结构示意图；
图2是本发明侧视图；
图3，实线图是悬韧带松驰时，本发明在囊袋内的侧视图；虚线图为悬韧带紧张时，本发明在囊袋内的侧视图。
本发明由光学部4和两个对称连接的袢组成，并设计为具有前倾角的复合弹性袢，与光学部4连接的袢的根部3弹性小于体部2、尾部1弹性。袢材料可取自记忆性较强的材料，如PMMA，袢的根部3至体部2、尾部1逐渐变粗。

Claims (1)

1、一种可调节性的人工晶体，包括光学部和与光学部连接的两个袢，其特征在于袢的根部弹性小于体部、尾部弹性。
CN 00119055 2000-10-19 2000-10-19 一种可调节性人工晶体 Pending CN1290515A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 00119055 CN1290515A (zh) 2000-10-19 2000-10-19 一种可调节性人工晶体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 00119055 CN1290515A (zh) 2000-10-19 2000-10-19 一种可调节性人工晶体

Publications (1)

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CN1290515A true CN1290515A (zh) 2001-04-11

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CN 00119055 Pending CN1290515A (zh) 2000-10-19 2000-10-19 一种可调节性人工晶体

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CN (1) CN1290515A (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102090946A (zh) * 2011-02-17 2011-06-15 郝燕生 用襻丝做眼内固定的人工晶体囊袋
US8187631B2 (en) 1999-10-19 2012-05-29 Genzyme Corporation Direct compression polymer tablet core
US9895315B2 (en) 2004-11-01 2018-02-20 Genzyme Corporation Aliphatic amine polymer salts for tableting

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8187631B2 (en) 1999-10-19 2012-05-29 Genzyme Corporation Direct compression polymer tablet core
US9895315B2 (en) 2004-11-01 2018-02-20 Genzyme Corporation Aliphatic amine polymer salts for tableting
CN102090946A (zh) * 2011-02-17 2011-06-15 郝燕生 用襻丝做眼内固定的人工晶体囊袋
CN102090946B (zh) * 2011-02-17 2012-10-03 郝燕生 用襻丝做眼内固定的人工晶体囊袋

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