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Electrode for detecting bioelectrical signals

  • US 4,375,219 A
  • Filed: 04/22/1980
  • Issued: 03/01/1983
  • Est. Priority Date: 02/05/1980
  • Status: Expired due to Term
First Claim
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1. An electrode assembly for bioelectrical use comprising a support, and at least two skin-contacting electrodes on said support connectable to a circuit responsive to bioelectrical signals, said electrodes each comprising a pair of spacedly juxtaposed plates insulated from one another and an electrolyte disposed between said plates, said plates being composed of a metal selected from Group IIIA of the Periodic Chart of the Elements, the spacing between said plates being between 1 and 4 times the thickness of said plates, said electrodes being disposed in laterally spaced relationship on said support and being at least partially received in an insulating material and projecting therefrom with the insulating material therebetween so as to enable at least one plate of each of the electrodes to contact the skin simultaneously, the electrode spacing being about 4 to about 10 mm, said electrodes being provided with means for electrically connecting them to circuitry for bioelectrical use.

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