Femoral component for a knee joint prosthesis having a modular cam and stem
US5181925A · kind A · utility
93Cited by
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3Claims
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Assignee
Inventors
Key dates
| Filing date | Feb 10, 1992 |
| Grant date | Jan 26, 1993 |
| Priority date | — |
| Expiry date | Feb 10, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/3886
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A femoral component for a knee joint prosthesis having a modular cam which may be connected intraoperatively to provide posterior tibial subluxation resistance when the posterior cruciate ligament is sacrificed. The cam includes protrusions which engage with notches on the stem base to prevent rotation of the cam during use. A stem extension is connected to the stem base for clamping engagement of the cam body therebetween. A transverse opening may be formed in the stem base for providing access to the stem extension threads. The threads may then be malformed to prevent rotation of the stem extension relative to the extension.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.