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Biomedical electrode

  • US 4,273,135 A
  • Filed: 09/08/1978
  • Issued: 06/16/1981
  • Est. Priority Date: 08/19/1977
  • Status: Expired due to Term
First Claim
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1. In an essentially dry disposable biomedical electrode comprising an electrode plate having an upper surface and a lower body-contacting surface, said upper surface having means for electrically connecting said electrode plate to a lead wire, and a conductive material on said body-contacting surface of said electrode plate for enhancing electrical connection with the skin, the improvement wherein said conductive material consists essentially of a dermally nonirritating, conformable, cohesive, non-ionic synthetic hydrophilic polymer containing at least 15 mole percent of a water-soluble monomer, said electrode having an impedance of 500 Kohms or less at a frequency of 10 Hertz.

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