Biocompatible carbon prosthetic devices
US3952334A · kind A · utility
203Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1974 |
| Grant date | Apr 27, 1976 |
| Priority date | — |
| Expiry date | Nov 29, 1994 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L27/34
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A biocompatible prosthetic device comprising a metal alloy substrate, an intermediate layer of a high-temperature polymer which is strongly bonded thereto, and an exterior coating of dense vapor-deposited carbon. The carbon layer is thromboresistant and strongly adheres to the intermediate layer which in turn strongly adheres to the metal alloy. The polymer may be the reaction product of pyromelletic dianhydride and a diaminodiphenyl ether, and the carbon may be deposited under high vacuum conditions from a suitably heated carbon source, e.g., by ion-plating or vacuum vapor deposition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.