Medical device utilizing a nickel-titanium ternary alloy having high elastic modulus
US9339401B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2013 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Jul 3, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C5/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Medical devices that include a Ni—Ti ternary alloy and methods for their manufacture. The medical devices described herein include at least one part fabricated from the Ni—Ti ternary alloy. In the Ni—Ti alloys, the ternary alloying element is selected to be compatible with Ni—Ti. Example Ni—Ti ternary alloys include nickel (Ni), titanium (Ti), and one or more of tantalum (Ta), hafnium (Hf), vanadium (V), zirconium (Zr), scandium (Sc), or yttrium (Y). By virtue of their compatibility with Ni—Ti, additions of the ternary alloying element(s) may substitute for titanium in the Ni—Ti phase up to the solubility of the ternary element and the remainder can exist as a second phase whose mechanical properties resemble that of the pure ternary element and whose elastic modulus exceeds that of the Ni—Ti matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.