Vascular graft prosthesis
US4550447A · kind A · utility
251Cited by
16References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1983 |
| Grant date | Nov 5, 1985 |
| Priority date | — |
| Expiry date | Aug 3, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/47
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A porous tube suitable for use as a vascular graft prosthesis is disclosed. It is reinforced by external ribs, integral with the tube wall. These ribs are generally transverse to the tube axis and less porous than the wall. Suitable tubing can be made from polymers exhibiting a significant degree of crystallinity, preferably polytetrafluoroethylene. Methods for making these ribbed, porous tubes are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.