Self-sealing PTFE vascular graft and manufacturing methods
US7244271B2 · kind B2 · utility
42Cited by
90References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2004 |
| Grant date | Jul 17, 2007 |
| Priority date | — |
| Expiry date | Apr 9, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L27/507
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable microporous ePTFE tubular vascular graft exhibits long term patency, superior radial tensile strength and suture hole elongation resistance. The graft includes a first ePTFE tube and a second ePTFE tube circumferentially disposed over the first tube. The first ePTFE tube exhibits a porosity sufficient to promote cell endothelization, tissue ingrowth and healing. The second ePTFE tube exhibits enhanced radial strength in excess of the radial tensile strength of the first tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.