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Prosthetic devices having diffusion-hardened surfaces and bioceramic coatings

  • US 20040002766A1
  • Filed: 06/27/2002
  • Published: 01/01/2004
  • Est. Priority Date: 06/27/2002
  • Status: Abandoned Application
First Claim
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1. A prosthesis comprising:

  • (a) a femoral component having (1) an implant portion for inserting into body tissue;

    (2) a bearing surface comprising at least one condyle;

    said femoral component formed of zirconium, hafnium, niobium, tantalum or alloys thereof;

    (b) a tibial component having an articulating surface, said articulating surface comprised of an organic polymer or polymer-based composite and adapted to cooperate with said bearing surface;

    (c) a diffusion-hardened oxide or nitride coating on at least a part of said bearing surface for reducing wear of the tibial component; and

    , (d) a coating of at least one bioceramic compound on at least a part of said implant portion.

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