Biocentric joint prosthesis

Details Biocentric joint prosthesis Biocentric joint prosthesis

A - Human Necessities

61

F

3/105

A61F 2/40 (2006.01) A61F 2/32 (2006.01) A61F 2/30 (2006.01) A61F 2/34 (2006.01) A61F 2/36 (2006.01)

Patent

CA 1099055

BICENTRIC JOINT PROSTHESIS Abstract A prosthesis for an artificial bicentric joint comprising a cup member encased in a metallic outer shell member, the cup member having an inner surface adapted for receiving the male prosthetic member of the articulating joint and an outer surface comprising a spherical zone terminating at its base in a right cylindrical zone, the altitude of the spherical zone being less than the spherical radius, and having an annular groove approximately at the junction of the spherical and cylindrical zones, the shell member having an outer surface adapted for implantation in a skeletal cavity and an inner surface, substantially congruent with the outer surface of the cup member, having detent means for engaging the annular groove of the cup member to permanently secure the cup member within the shell member.

320530

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