Acetabular cup prosthesis
US4969910A · kind A · utility
67Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1988 |
| Grant date | Nov 13, 1990 |
| Priority date | — |
| Expiry date | Oct 13, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/3448
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The acetabular cup prosthesis has a metal socket having a socket shell for receiving a spherical joint head as well as a plastic ring which covers the equatorial edge surface of the metal socket and which has an inner diameter corresponding to the inner diameter of the shell. In the event of a dislocation of the joint head, the polished surface of the joint head contacts the plastic ring to deform the ring without imposing a point load on the metal joint head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.