Zirconium alloy-based prosthesis with zirconium oxide or...

Details Zirconium alloy-based prosthesis with zirconium oxide or... Zirconium alloy-based prosthesis with zirconium oxide or...

A - Human Necessities

61

L

3/100

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

Patent

CA 2021814

Orthopaedic implants of zirconium or zirconium-based alloy coated with blue-black zirconium oxide or zirconium nitride to provide low friction, highly wear resistant coatings especially useful in artificial joints, such as hip joints, knee joints, elbows, etc. The invention zirconium oxide or nitride coated prostheses are also useful, in that the coatings provide a barrier against implant corrosion caused by ionisation of the metal prosthesis. Such protection can be extended by the use of oxidised or nitrided porous coatings of zirconium or zirconium alloy beads or wire mesh into which bone spicules may grow so that the prosthesis may be integrated into the living skeleton.

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