Method of manufacturing femoral knee implant
US5560096A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 23, 1995 |
| Grant date | Oct 1, 1996 |
| Priority date | — |
| Expiry date | Jan 23, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49996
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of manufacturing a distal femoral knee prosthesis includes the initial step of forming a rough prosthesis workpiece member that has the approximate size and shape of a final polished distal femoral prosthesis. The rough prosthesis workpiece member can be a casting, forging or a rough machined part. The prosthesis member is then attached to a fixator and movably supported adjacent a rotary grinder. Relative motion between the rotary grinder and the prosthesis is controlled with a computer. An articular surface of the prosthesis is shaped by engaging the prosthesis with the rotary grinder. The workpiece is primarily polished to remove "scallops" that form on the outer surface during a shaping with the rotary grinder. The prosthesis workpiece member is then secondarily polished until the articular surface provides a highly polished mirror finish.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.