Joint implant
US4687487A · kind A · utility
86Cited by
4References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 11, 1985 |
| Grant date | Aug 18, 1987 |
| Priority date | — |
| Expiry date | Apr 11, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/0088
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The mutually sliding members of a joint implant are each coated with a hard material selected from the group consisting of titanium carbide, oxicarbide, nitride, oxinitride, carbonitride and oxicarbonitride in order to improve the sliding, wear resistance and adhesion properties of the members. A hip joint prosthesis is provided having a socket bowl coated with titanium (oxi)nitride or titanium (oxi)carbonitride with a thickness of from 2 to 3 microns and an articular head coated with titanium (oxi)carbide or titanium (oxi)carbonitride with a thickness of from 2 to 3 microns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.