Knee prosthesis with accommodation for angular misalignment
US4714472A · kind A · utility
115Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 20, 1987 |
| Grant date | Dec 22, 1987 |
| Priority date | — |
| Expiry date | Jan 20, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/38
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A knee prosthesis in which articular surface areas of the engaged femoral and tibial components of the prosthesis include surface profile contours lying in a common arcuate profile defined by a medial-lateral radius having an origin lying on the mechanical axis passing through the femoral head of the corresponding hip joint such that limited misalignment of the femoral and tibial components by virtue of angular deviation from the mechanical axis resulting from relative displacement in a medial-lateral direction is tolerated to accommodate the misalignment while maintaining area engagement between the engaged surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.