Radiopaque alloy and medical device made of this alloy
US8801875B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 16, 2008 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Dec 31, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2400/16
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A radiopaque alloy based on titanium nickelide and having shape memory and superelastic properties includes, according to one embodiment, at least one radiopaque alloying element selected from among gold, platinum, and palladium at a concentration of from about 10 at. % to about 20 at. %, and at least one additional alloying element selected from among aluminum, chromium, cobalt, iron, and zirconium, where the additional alloying element has a concentration of from about 0.5 at. % to about 4 at. %. The alloy includes titanium at a concentration of from about 48 at. % to about 52 at. %, and the balance of the alloy is nickel. The radiopaque alloy preferably exhibits superelastic behavior suitable for medical device applications in the human body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.