Keratoprosthetic polyurethane
US4424335A · kind A · utility
6Cited by
32References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 19, 1982 |
| Grant date | Jan 3, 1984 |
| Priority date | — |
| Expiry date | Jul 19, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/043
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A reaction product of 4,4' dicyclohexylmethane diisocyanate, polytetramethylene ether glycol and ethylene oxide-capped trimethylol propane. The resulting polyurethane is optically clear and suitable for use as an artificial cornea, or a permanently implantable lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.