Coated femoral stem prosthesis

Details Coated femoral stem prosthesis Coated femoral stem prosthesis

A - Human Necessities

61

L

A61L 27/00 (2006.01) A61F 2/30 (2006.01) A61F 2/36 (2006.01) A61L 27/30 (2006.01) A61F 2/00 (2006.01) A61F 2/46 (2006.01)

Patent

CA 2182285

A femoral hip component for use in hip arthroplasty has a stem portion for contact with bone cement. The stem portion is formed from a biocompatible material having a surface finish of less than about four microinches. This surface is coated with a uniform layer of material selected from the group consisting of diamond-like carbon, chromium carbide, titanium nitride, titanium carbo-nitride, chromium and zirconium and a combination thereof.

L'invention concerne un élément d'articulation fémorale de la hanche utilisé dans l'arthroplastie de la hanche et présentant une broche destinée à être en contact avec le ciment osseux. La broche est en matériau biocompatible présentant un fini de surface de moins d'environ quatre micropouces. Cette surface est recouverte d'une couche uniforme de matériau choisi dans le groupe comprenant le carbone similaire au diamant, le carbure de chrome, le nitrure de titane, le carbonitrure de titane, le chrome et le zirconium et une combinaison de ceux-ci.

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