发明名称 |
Intraocular lens with resilient haptics |
摘要 |
An improved intraocular lens is disclosed with at least one filamentary haptic composed of a continuous matrix material interspersed with a toughening amount of discrete particles of a multistage, sequentially produced elastomeric polymer. An improved process for preparing a single-piece intraocular lens is also disclosed. The process involves preparing a composite lens blank by molding pellets composed of a continuous polymeric material interspersed with particles of a multistage, sequentially produced elastomeric polymer about a central optic lens core so as to produce a single lens blank having a toughened annular region surrounding the central optic region, and then machining at least one filamentary haptic from the toughened annular region to prepare the lens.
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申请公布号 |
US5282853(A) |
申请公布日期 |
1994.02.01 |
申请号 |
US19920953406 |
申请日期 |
1992.09.29 |
申请人 |
IOLAB CORPORATION |
发明人 |
SHERWOOD, CHARLES H.;CHANG, SHIAO H. |
分类号 |
A61F2/14;A61F2/16;B29D11/02;(IPC1-7):A61F2/16 |
主分类号 |
A61F2/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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