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Method of producing a biocompatible prosthesis

  • US 5,849,206 A
  • Filed: 02/04/1997
  • Issued: 12/15/1998
  • Est. Priority Date: 08/15/1994
  • Status: Expired due to Term
First Claim
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1. A method of producing a biocompatible prosthesis based on a prefabricated substrate comprised essentially of metal or ceramic, said method comprising:

  • placing the substrate into a reactor chamber of a cathodic vapor deposition arrangement and evacuating the chamber to a pressure;

    surface treating the substrate by applying a negative bias voltage to the substrate, and adding an etching gas, at a first flow rate and coupling in a high frequency (HF) power, with a first power density, into the reactor chamber for ionic etching a surface of the substrate for a first period of time;

    separating the surface-treated substrate from the negative bias voltage; and

    chemical vapor-phase depositing a semiconductor cover layer on the surface of the substrate by adding a multi-component mixture of process gases containing a semiconductor element in bound form at a second flow rate and coupling-in of HF power, with a second power density, into the reactor chamber for a second time period.

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