Flexible mold for forming composite of a hip replacement compone

Details Flexible mold for forming composite of a hip replacement compone Flexible mold for forming composite of a hip replacement compone

1991-03-18

1992-07-28

Green, Randall L.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

623 22, 623 18, 623 16, 606 60, A61F 228, A61F 234, A61F 236

Patent

active

051337711

ABSTRACT:
A custom made femoral component is made using the femoral cavity and an internal latex envelope as the mold. After the femoral cavity is worked into a roughly conical shape, an internal latex envelope is inserted into the cavity and filled with bone cement. An endoskeleton is inserted down the femoral cavity into the bone cement. The internal latex mold conforms to the shape of the cavity and an accurate negative of the cavity is created as the bone cement solidifies. The femoral component is pulled from the cavity and the internal latex envelope is peeled off the component. All traces of the internal latex envelope is removed from the femoral cavity and component. The femoral component is then reimplanted.

REFERENCES:
patent: 4750905 (1988-06-01), Koeneman et al.
patent: 4888024 (1989-12-01), Powlan
patent: 4900546 (1990-02-01), Posey-Dowty et al.
patent: 4950300 (1990-08-01), Langlais
patent: 5015257 (1991-05-01), Crowninshield et al.

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