Helical stent and method for making same
US6736844B1 · kind B1 · utility
86Cited by
12References
23Claims
0Family size
Inventors
Key dates
| Filing date | Nov 9, 1999 |
| Grant date | May 18, 2004 |
| Priority date | — |
| Expiry date | Nov 9, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/91575
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A stent having a first filamentary element (20) with a proximal end portion and a distal end portion, and being spirally coiled in at least its central portion, and a second filamentary element (30) spirally coiled along its central portion and overlapping the first filamentary element to form a double helix is disclosed along with a method for forming such a stent. At least one end portion of the first filamentary element is ring-shaped to provide increased radial support at that end of the stent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.