Joint endoprosthesis
US4430761A · kind A · utility
58Cited by
4References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1981 |
| Grant date | Feb 14, 1984 |
| Priority date | — |
| Expiry date | Nov 3, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2230/0019
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The shank of the prosthesis is provided with a plurality of parallel grooves in order to improve adhesion of the shank in a prepred bone cavity. The grooves are used to improve adhesion either directly to bone tissue or to a cement bed within a bone cavity. The grooves are spaced apart on a center-line to center-line distance of a few millimeters and each has a depth of several tenths of a millimeter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.