Vascular biomaterial
US5118524A · kind A · utility
36Cited by
10References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1990 |
| Grant date | Jun 2, 1992 |
| Priority date | — |
| Expiry date | Sep 14, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S623/921
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides a vascular biomaterial that includes expanded PTFE and a haemocompatible membrane covalently bonded thereto. Also provided is a process for making the vascular biomaterial that involves chemically modifying the surface of expanded PTFE to provide a surface partially covered with for instance, a hydroxyl moiety, and covalently bonding a haemocompatible membrane to the chemically modified surface of expanded PTFE.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.