Ravel-resistant self-supporting woven vascular graft
US5509931A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 28, 1994 |
| Grant date | Apr 23, 1996 |
| Priority date | — |
| Expiry date | Jan 28, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S623/921
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A ravel-resistant, self-supporting woven synthetic fabric vascular graft including a fusible fiber integrated into the weave in the filling yarn is provided. The graft is woven from multifilament polyester warp yarns which can be textured or flat. The filling yarn includes a low melting fusible fiber or resin which can be combined with a stiff monofilament. The monofilament component provides radial rigidity to improve kink and crush resistance. After heat setting, the low melting fusible resin fuses to orthogonal warp yarns at each intersection and provides ravel resistance to the finished graft. Improved kink resistance make the tubular grafts suitable for use in medium and small diameter peripheral applications. A preferred graft has a single velour outer surface and a smooth inner surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.