Surgery – Instruments – Orthopedic instrumentation
Patent
1990-01-09
1991-07-30
Hafer, Robert A.
Surgery
Instruments
Orthopedic instrumentation
606 87, A61F 504
Patent
active
050356992
ABSTRACT:
A surgical device for accurately positioning and cutting a patellar groove in a resected distal femur to receive a patellar track portion of a prosthesis, including a guide element adapted to fit over the distal end of a resected femur, having a central opening which exposes the central, distal an anterior aspects of the femur, each side of the opening being provided with a track, extending the length of the patella track, and, a cutting tool having a cutting surface, perferably convex, adapted to fit into the central opening for the purpose of cutting or abrading a groove into the femur as the tool is moved along the opening. The tool, which is preferably a rotary cutter provided with independently rotatable track-engaging surfaces on each side of the opening is adapted to engage and move along the track.
REFERENCES:
patent: 930477 (1909-08-01), Hudson
patent: 3412733 (1968-11-01), Ross
patent: 3633583 (1972-01-01), Fishbein
patent: 3667456 (1972-06-01), Charnley
patent: 4004581 (1977-01-01), Heinke
patent: 4179810 (1979-12-01), Kirsch
patent: 4467801 (1984-08-01), Whiteside
patent: 4721104 (1988-01-01), Kaufman et al.
patent: 4730616 (1988-03-01), Frisbie
patent: 4856503 (1989-08-01), Schelhas
patent: 4926847 (1990-05-01), Luckman
Brown Michael
Chiatalas John L.
Dow Corning Wright
Hafer Robert A.
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