Intraocular lens with noncircular eye engaging retention means
US4254511A · kind A · utility
8Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 1979 |
| Grant date | Mar 10, 1981 |
| Priority date | — |
| Expiry date | Jul 25, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/1683
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intraocular lens with an iris retention loop that is attached to an optical section of the lens by a pair of shank sections. Each shank section has a noncircular cross sectional area to provide a more flattened contact surface for engaging an inner edge of the iris. Such structure reduces cutting of the iris when the iris is stretched over these shank sections to retain the lens in the eye.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.