Prosthesis for a joint
US4001897A · kind A · utility
24Cited by
2References
5Claims
0Family size
Inventors
Key dates
| Filing date | Jan 27, 1976 |
| Grant date | Jan 11, 1977 |
| Priority date | — |
| Expiry date | Jan 27, 1996 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2220/0033
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A partial prosthesis for a joint designed to replace the head of a femur. A spherical head integral with a pin, which is designed to engage the femur, when in its utilization position engages a spherical cap which is to be accommodated and supported in the acetabulum of a hip. The cap has an inside spherical bearing surface of given diameter to assure that the spherical head has great freedom of movement therein and, at its base, an internal cylindrical shoulder small in width and of a diameter slightly smaller than the spherical bearing surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.