Surgical graft/stent system
US6814747B2 · kind B2 · utility
10Cited by
20References
18Claims
0Family size
Inventors
Key dates
| Filing date | Oct 19, 2001 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | Oct 30, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0067
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tubular graft/stent comprises a tubular sheath having at intervals along its length a plurality of ring-like rigid members, which are attached to the sheath around their respective circumferences and are made of a shape memory material, so that when the members change shape the sheath adopts a new cross section in conformity with the members along the sheath's whole length. The members may be discontinuous to allow the adoption of a contracted shape in the martensitic phase and an expanded shape in the austenitic phase. A graft may also have a branched side tube which can be inverted so as to be housed within the sheath.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.