Graphite impregnated prosthetic vascular graft materials
US6120532A · kind A · utility
13Cited by
15References
15Claims
0Family size
Inventor
Key dates
| Filing date | Jul 24, 1992 |
| Grant date | Sep 19, 2000 |
| Priority date | — |
| Expiry date | Jul 24, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/24
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The specification teaches thromboresistant compositions made of suitable biologically compatible plastic materials and a substance having a negative charge, e.g., graphite, incorporated therein in the framework of the lattices of the plastic, for use in prosthetic vascular devices intended to be permanently grafted in body loci wherein use of a thromboresistant prosthetic is desirable. An exemplary combination is polytetrafluoroethylene and graphite made into suitable structures for use as prosthetic arteries, veins and heart valves is taught.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.