Method for ion beam treating orthopaedic implant components

Details Method for ion beam treating orthopaedic implant components Method for ion beam treating orthopaedic implant components

1993-09-13

1995-01-24

King, Roy V.

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

Implantable prosthesis

Bone

623 18, 623 20, 623 22, 427529, 427528, 427531, 20419211, A61F 230, B05D 306, C23C 1448

Patent

active

053839340

ABSTRACT:
A method is disclosed for ion beam coating orthopaedic parts by ion implanting the parts with zirconium ions while the parts are immersed in an oxygen-containing background gas. A highly adherent surface layer of zirconium oxide is formed which provides a low friction, low wear graded interface for the articulating surface. The graded interface is characterized by a blackish color and a transition between pure zirconia and pure substrate material that extends over a thickness of hundreds of Angstroms. In an alternative embodiment, the thickness of the zirconia coating may be increased by also adding a simultaneous evaporation of zirconium metal on the parts.

REFERENCES:
patent: 4743493 (1988-05-01), Sioshansi et al.
patent: 4855026 (1989-08-01), Sioshansi
patent: 5037438 (1991-08-01), Davidson
patent: 5123924 (1992-06-01), Sioshansi et al.
patent: 5133757 (1992-07-01), Sioshansi et al.

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