Joint endoprosthesis
US4058856A · kind A · utility
47Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 1976 |
| Grant date | Nov 22, 1977 |
| Priority date | — |
| Expiry date | Oct 12, 1996 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00185
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The metal male joint part has a taper which is less than that of the cavity of the oxide ceramic female joint part. In addition, the surface of the male part has a resistance to deformation which is less than that of the core of the male part. The cone angle .beta. of the female cavity and the cone angle .alpha. of the male joint part are in the relation: EQU tan .beta./2 - 0.001 .ltoreq. tan .alpha./2 .ltoreq. tan .beta./2 - 0.005.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.