Graphite impregnated prosthetic vascular graft materials
US5919223A · kind A · utility
2Cited by
0References
8Claims
0Family size
Inventor
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Jul 6, 1999 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
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.