Self-sealing PTFE graft with kink resistance
US8313524B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2005 |
| Grant date | Nov 20, 2012 |
| Priority date | — |
| Expiry date | Aug 10, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2420/08
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A self-sealing vascular graft, including a substrate with a sealant layer and several optional additional layers, is described. The substrate can be ePTFE and the material used for the sealant and additional layers can be polyurethane. The sealant layer and additional layers may include one or more base layers, one or more foam layers, beading of different sizes and shapes, and ePTFE tape. A flared cuff may be integral to one or both ends of the substrate or may be attached to one or both ends. Various methods of making a self-sealing vascular graft are also described, including methods of disposition, methods of forming, methods of bonding and methods of attaching.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.