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Implantable stimulation electrodes with non-native metal oxide coating mixtures

  • US 5,683,443 A
  • Filed: 02/07/1995
  • Issued: 11/04/1997
  • Est. Priority Date: 02/07/1995
  • Status: Expired due to Term
First Claim
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1. An implantable stimulation electrode, comprising:

  • a metal surface essentially devoid of native metal oxides further comprising a metal selected from the group of metals consisting of valve metals or their alloys;

    said metal surface further comprising an electrically-accessible area;

    said electrically-accessible area further comprising a macroscopically-enhanced surface area;

    said macroscopically-enhanced area further comprising a microscopically-enhanced surface area; and

    ,a non-native coating upon said metal surface comprising a mixture of at least two metal oxides selected from the group of metal oxides consisting of oxides of valve metals, noble metals, alloys of valve metals, alloys of noble metals, mixtures of valve and noble metals, said metal oxide or metal oxides capable of reversible reduction-oxidation.

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