Hydrogel keratoprosthesis
US4586929A · kind A · utility
32Cited by
3References
14Claims
0Family size
Inventor
Key dates
| Filing date | Apr 6, 1984 |
| Grant date | May 6, 1986 |
| Priority date | — |
| Expiry date | Apr 6, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/142
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device which may be implanted in the cornea of the eye to replace both the cornea and the lens, and which is biocompatible with the tissue in the eye. A concave base plate with a support cylinder connected integrally through its center is used and implanted in the eye using a microkeratome technique. An optical cylinder with threads formed about its periphery is screwed into the support cylinder to focus the light in the eye. The base plate and support cylinder are made of a hydrogel material having a water content ranging from 30 percent to 79 percent which is biocompatible with the tissue in the eye.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.