Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Patent
1996-08-14
1998-10-20
Isabella, David
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
A61F 238
Patent
active
058240977
ABSTRACT:
A medical fastening system for a modular knee prosthesis includes a femoral component having an aperture. A washer having an aperture alignable with at least a portion of the aperture in the femoral component engages the femoral component to inhibit movement of the washer through the aperture in the femoral component. A bolt engages the washer and an elongate shaft portion of the bolt protrudes from the femoral component through the aperture in the washer and the aperture in the femoral component to engage a Morse taper post or femoral stem. The configuration of the washer aperture, its location in the washer, and the orientation of the washer within the femoral component determine the fore and aft positioning of the Morse taper post or femoral stem. The Morse taper post or femoral stem can be provided with a canted base to angle the post or stem with respect to the femoral component.
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Johnson & Johnson Orthopaedics Research & Development "P.F.C..RTM.Modular Knee System Research Data and Laboratory Testing", cover and pp. 8, 36 and 37 (1989).
Colleran Dennis P.
Gabriel Stefan M.
Isabella David
Johnson & Johnson Professional Inc.
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