Medical implants made of metal alloys bearing cohesive diamond like carbon coatings
US5725573A · kind A · utility
159Cited by
54References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1996 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | Apr 10, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/0058
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention provides a method for coating a metal alloy component of a medical implant, particularly a component of a heart valve made of a titanium base alloy, with a strongly adhered coating of diamond-like carbon. The method uses ion beam assisted deposition to form a gradient at the surface of the titanium alloy comprising metal alloy/metal-silicide/(silicon or germanium)/silicon- or germanium-carbide/DLC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.