Vascular and endoluminal stents
US6478815B1 · kind B1 · utility
116Cited by
3References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 18, 2000 |
| Grant date | Nov 12, 2002 |
| Priority date | — |
| Expiry date | Sep 18, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/91558
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A stent is composed of a single homogeneous tubing of niobium with a trace of additional metal less than about 5%, preferably zirconium, for alloy formation and reinforcement. The stent surface is provided with at least a partial coating to inhibit closure of a central lumen at a site of stent implant in the body. The surface coating may be vapor deposited or plasma deposited and comprises iridium oxide, titanium nitrate, a blend of metals, or surface oxidation of the niobium. The stent may have a rough surface characteristic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.