Femoral component for a hip prosthesis

Details Femoral component for a hip prosthesis Femoral component for a hip prosthesis

1993-04-29

1994-10-25

Green, Randall L.

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

Implantable prosthesis

Bone

A61F 232

Patent

active

053585348

ABSTRACT:
A femoral component for a hip prosthesis has a distal portion defining a central longitudinal axis. The component has a generally conically shaped mid-shaft portion and a proximal portion with a shape based on the reamer and a shaped chisel used by the surgeon to prepare the proximal metaphysis and medullary canal. The proximal portion is shaped in a manner wherein a cross-section taken perpendicular to the central axis has a medial side formed as a first circular arc, a corner of the cross-section formed by the posterior and lateral sides as a second circular arc with a center on the central axis. The posterior side is arcuate and concave and tangent to the first and second circular arcs, with the anterior side being arcuate and convex.

REFERENCES:
patent: 4435854 (1984-03-01), Keller
patent: 4589883 (1986-05-01), Kerra
patent: 4752296 (1988-06-01), Buechel et al.
patent: 4813963 (1989-03-01), Hori et al.
patent: 4979958 (1990-12-01), Niwa et al.
patent: 5002580 (1991-03-01), Noble et al.
patent: 5041141 (1991-08-01), Ypna et al.
patent: 5181930 (1993-01-01), Dunbleton et al.

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