Woven bifurcated and trifurcated stents and methods for making the same
US6409750B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2000 |
| Grant date | Jun 25, 2002 |
| Priority date | — |
| Expiry date | Feb 1, 2020 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2509/06
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Bifurcated and trifurcated woven stents for insertion and delivery into a variety of anatomical structures, including the aortic-iliac bifurcation, the superior vena cava junction, and the inferior vena cava junction. The bifurcated stents includes a first leg formed from a first plurality of wires, a second leg formed from a second plurality of wires, and a common body formed from the first and second pluralities of wires. The wires may be nitinol. Biodegradable filaments may also be utilized. The angles created between the crossed wires is preferably obtuse. A variety of delivery devices formed from differently-sized tubes, portions of which may operate co-axially with each other, are also included. The bifurcated stents may be formed from as few as two wires. The stents may be formed using plain weaving effected either by hand or by machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.