Artificial acetabulum

Details Artificial acetabulum Artificial acetabulum

1991-02-28

1992-01-14

Frinks, Ronald

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

Implantable prosthesis

Bone

623 18, A61F 232

Patent

active

050806785

ABSTRACT:
An artificial acetabulum is made with a metal inner shell, a thin outer shell which defines a cavity with the inner shell and an elastic force-transmitting member between the two shells to damp forces imposed on the shells. In addition, a metal gauze layer is disposed about the outer shell for the ingrowth of osseous tissue. The inner and outer shells are connected at the edges so as to impermeable to air so that no particles from the cavity between the shells can reach the surrounding environment. A beading is also provided on the outer shell and/or gauze so as to snap into an appropriate undercut in the osseous tissue during primary implantation.

REFERENCES:
patent: 4718914 (1988-01-01), Frey et al.
patent: 4770661 (1988-09-01), Oh
patent: 4813961 (1989-03-01), Sostegni
patent: 4969910 (1990-11-01), Frey et al.
patent: 5021063 (1991-06-01), Tager

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