Method of manufacturing femoral knee implant

Details Method of manufacturing femoral knee implant Method of manufacturing femoral knee implant

1995-01-23

1996-10-01

Vo, Peter

Metal working

Method of mechanical manufacture

Shaping one-piece blank by removing material

295276, 451 21, 623 20, B23P 1304

Patent

active

055600964

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.

REFERENCES:
patent: 3654692 (1972-04-01), Goetz
patent: 4611373 (1986-09-01), Hazebrook
patent: 4753044 (1988-06-01), Bula
patent: 5092022 (1992-03-01), Duret
patent: 5100409 (1992-03-01), Coates et al.

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