Mechanically fixed acetabular unit for prostheses and implantation device for fixing it into the cotyloid cavity
US4878918A · kind A · utility
Inventors
Key dates
| Filing date | Jan 28, 1987 |
| Grant date | Nov 7, 1989 |
| Priority date | — |
| Expiry date | Jan 28, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2220/0033
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A mechanically fixable acetabular unit for hip prostheses, having a conical acetabular basket made of a tissue-compatible metal alloy, the acetabular basket (1) is provided with cutouts (3) running in the direction of the generatrix and L-shaped anchors (4) are inserted into the cutouts (3) so, as to be tilted around the geometric axis running parallel with the tangent of the mantle of the acetabular basket and in such a manner that the shorter shank of the anchors (4) is arranged at the end with a smaller diameter of the acetabular basket and on the outer end it is formed as a pointed sharp claw (7), while the thickness of the longer shank (6) corresponds substantially to the wall-thickness of the acetabular basket (1), while the length corresponds to the length of the cutout (3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.