Centering element for a shank of a joint endoprosthesis
US5108439A · kind A · utility
19Cited by
4References
18Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 11, 1991 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Sep 11, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2230/0089
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A centering element for a shank of a femur bone prosthesis is of three-sided pyramidal shape with an equilateral triangular-shaped base. The apex of the centering element is also rounded while a stud is provided at the base for interfitting in a recess in the prosthesis shank. The shape of the centering element enables insertion of the element together with a shank in a cavity in a bone already filled with bone cement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.