Femoral surface shaping guide for knee implants
US4722330A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1986 |
| Grant date | Feb 2, 1988 |
| Priority date | — |
| Expiry date | Apr 22, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/461
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a distal femoral surface shaping guide for mounting on an intramedullary alignment guide which references the central long axis of the femur in shaping the distal femoral surface and a method for shaping the distal femur using that shaping guide. The alignment guide of the present invention is adjustable relative to the surface of the anterior femoral cortex to insure that the anterior aspect of the distal femoral condyles is resected relative to that surface and, preferably, at the same level as that surface. The alignment guide of the present invention provides a main body which remains attached to the intramedullary alignment guide throughout the entire shaping of the distal femur. It thus requires fewer cutting guides and alignment steps than other shaping guides while allowing greater accuracy in shaping the distal femur relative to the central long axis of the femur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.