Hip prosthesis
US4115875A · kind A · utility
84Cited by
5References
2Claims
0Family size
Inventors
Key dates
| Filing date | Apr 19, 1977 |
| Grant date | Sep 26, 1978 |
| Priority date | — |
| Expiry date | Apr 19, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2220/0033
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The male and female parts of a hip prosthesis each comprise two parts, a base fixed to the bone, and an active organ attached removably to the base. The upper face of the base has a truncated conical bore with a threaded bore at the bottom. The active member has a conically shaped projection with a threaded end which matches the bore in the base and which is screwed in the base to effectively lock the active member to the base. Diametrically opposite flat parts on the base and active member are provided to allow the active member to rotate while preventing the base from rotating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.