Patella prosthesis

Details Patella prosthesis Patella prosthesis

1992-05-26

1993-01-26

Frinks, Ronald

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

Implantable prosthesis

Bone

623 18, A61F 238

Patent

active

051819244

ABSTRACT:
The invention shows a patella prosthesis, which consists of an artificial slide member (2) made from polyethylene with sliding surface (3), with the slide member (2) being mounted on the rear of the patella (1) by means of an attachment. The sliding surface (3) consists of the sector of a polyethylene sphere, which comprises a metal grid (4) of an attachment member (9). The attachment member consists of a metal sandwich construction having a central support sheet and metal grids (4, 6) spot welded on both sides, with bevelled sheet metal flanges (7) for the primary attachment of the support sheet (5) protruding through recesses (8) in the metal grid (6) on the side of the patella.

REFERENCES:
patent: 4550448 (1985-11-01), Kenna
patent: 4955911 (1990-09-01), Frey et al.
patent: 4997445 (1991-03-01), Hodorek
patent: 5019104 (1991-05-01), Whiteside et al.

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