Fabrication of an intraocular lens
US6432246B1 · kind B1 · utility
52Cited by
89References
54Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 27, 1992 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Jul 27, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S623/901
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A lens, having an optical power surface, which may have multiple radii portions or aspherical portions as well as spherical portions, is molded in a coined old. A pair of core pins, positioned within the mold cavity during the lens forming process, will produce a pair of haptic-mounting holes within the lens. As the lenses are subsequently tumbled to remove flash, indentations will form adjacent to the haptic-mounting holes. These indentations allow for tangential attachment of the haptic to the lens which, in turn, enables maximum flexibility without exceeding the width of the optic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.