Multi-layered poly(tetrafluoroethylene)/elastomer materials useful for in vivo implantation
US5061276A · kind A · utility
169Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1988 |
| Grant date | Oct 29, 1991 |
| Priority date | — |
| Expiry date | Dec 19, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/04
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A vascular graft having a composite structure prepared by wrapping about the external surface of a tube having one or more layers of polytetrafluoroethylene or a polytetrafluoroethylene-elastomeric polymer blend, either alone or in combination, an elastic fiber, while maintaining the fiber under tension. The elastic fibers can be wound about the entire length of the tube while being maintained under the same of different degrees of tension. Furthermore, the elastic fibers may be wound about the tube under a higher degree of tension along locations adjacent the opposite ends the tubing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.