Implant for reconstruction of temporomanibular joint

Details Implant for reconstruction of temporomanibular joint Implant for reconstruction of temporomanibular joint

1986-12-09

1988-10-18

Apley, Richard J.

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

Implantable prosthesis

Bone

A61F 230

Patent

active

047784725

ABSTRACT:
The surgical TM joint implant has two-parts: a first part which covers or replaces the natural glenoid fossa and articular eminence of a natural TM joint, and a second part which replaces the natural condylar head of the joint. The first part includes a plate having a fossa cavity defined by a relatively deep concave portion and an anteriorly located concavo-planar portion. The second part has a condylar head defining a convexo-planar, articular face for engaging the concavo-planar surface and establishing therewith a planar contact area which minimizes the unit stress transmitted between the first and second parts, thereby providing for an even load distribution between their engaged planar surfaces.

REFERENCES:
patent: D248665 (1978-07-01), Homsey et al.
patent: 3140712 (1964-07-01), Hunter
patent: 3178728 (1965-04-01), Christensen
patent: 4693722 (1987-09-01), Wall

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