Stent graft tapered spring
US7279003B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2003 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Aug 29, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0029
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A stent graft includes a stent graft material of cylindrical shape and tapered stent springs coupled to the stent graft material. Each stent spring includes a first stent cell and a second stent cell contiguous with the first stent cell. The first stent cell and the second stent cell are coupled. The second stent cell of each tapered stent spring is smaller than the first stent cell thereby defining a tapered shape to the tapered stent springs. The stent graft is placed in a curved segment of a tortuous body lumen and rotationally positioned such that the smallest stent cell of each tapered stent spring is placed at an inside radius of the curved segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.