Method of forming a vascular prosthetic structure including expanded PTFE and graphite
US5955016A · kind A · utility
24Cited by
15References
10Claims
0Family size
Inventor
Key dates
| Filing date | Jun 6, 1995 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Jun 6, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/24
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of forming a vascular prosthetic structure, including steps of: mixing polytetrafluoroethylene resin with graphite powder to create a mixture; compacting the mixture to form a preform; extruding the preform to form an extrudate, expanding the extrudate to form an expanded structure having a plurality of irregularly spaced nodes interconnected by fibrils; and sintering the expanded structure to form the vascular prosthetic structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.