Artificial joint

Details Artificial joint Artificial joint

1993-01-26

1994-08-09

Green, Randall L.

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

Implantable prosthesis

Bone

623 23, 623 18, A61F 232, A61F 236, A61F 230

Patent

active

053362675

ABSTRACT:
Artificial joint for replacing human joints in particular, consisting of at least two joint parts with spherical functional surfaces that can move relative to each other. 2
The curvature relationships of the functional surfaces having a circular cross-sectional contour are convex/convex, convex/concave or concave/concave relative to each other, and the geometric design of the joint is determined by a joint chain with two joint axes running through the centers of rotation M.sub.1 and M.sub.2 of the functional surfaces with radii R.sub.1 and R.sub.2, where R.sub.1 is the radius of the circular cross-sectional contour of the functional surface with center of rotation M.sub.1, and R.sub.2 is the radius of the circular cross-sectional contour of the functional surface with center of rotation M.sub.2.

REFERENCES:
patent: Re29757 (1978-09-01), Helfet
patent: 3906550 (1975-09-01), Rostoker et al.
patent: 3916451 (1975-11-01), Buechel et al.
patent: 4003095 (1977-01-01), Gristina
patent: 4808185 (1989-02-01), Penenberg et al.

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