Orthopedic implant system

Details Orthopedic implant system Orthopedic implant system

1996-07-11

2000-05-23

Isabella, David J.

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

Implantable prosthesis

Bone

A61F 234

Patent

active

060661763

ABSTRACT:
It is an object of the present invention to provide an improved orthopedic implant system with satisfied biological, mechanical and morphological compatibilities.
Solid metal femoral stem (entirely or partially) and solid metal acetabular head (entirely or partially) are covered with diffusion-bonded foamed-shaped sheet made of commercially pure titanium or titanium alloy(s). The open-cells in said foamed metal sheet are impregnated with biocompatible polymethyl methacrylate resin cement, which is reinforced with selected oxides (e.g., alumina, magnesia, zirconia, or a combination of these oxides) along with an application of a small amount of a metal primer agent.

REFERENCES:
patent: 4500658 (1985-02-01), Fox
patent: 4693721 (1987-09-01), Ducheyne
patent: 4735625 (1988-04-01), Davidson
patent: 4791150 (1988-12-01), Braden et al.
patent: 5236457 (1993-08-01), Devanathan
patent: 5264513 (1993-11-01), Ikemura et al.
patent: 5276070 (1994-01-01), Arroyo
patent: 5282861 (1994-02-01), Kaplan
patent: 5571187 (1996-11-01), Devanathan

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