Electrode

Details Electrode Electrode

1975-04-21

1976-08-10

Michell, Robert W.

Surgery

Truss

Perineal

128417, 128DIG4, A61B 504

Patent

active

039735575

ABSTRACT:
A biomedical electrode for use in cooperation with a signal-receiving apparatus is the subject matter of this invention. The electrode includes an open-sided resilient transparent container, with a microporous diaphragm closing the open side. The container includes a filling aperture on the side opposite the open side. The container has three resilient fingers formed integral therewith, which fingers contact the diaphragm to hold the diaphragm outward from the container. The resilient fingers are equiangularly spaced about the filling aperture. An annular sealing flange is formed integral with the container; and extends into the filling aperture. A terminal plug is positioned in the filling aperture, in seaing engagement with the annular sealing flange, to seal closed the filling aperture. The terminal plug includes a cup, which is deformed slightly during insertion of the terminal plug into the filling aperture. The cup has a continuous silver surface on the exterior thereof, extending into the interior of the container. An electrolyte is contained in the container; and permeates the diaphragm to unite with skin fluids of the subject. The electrolyte co-acts with the exterior of the terminal plug to form a silver-silver chloride half cell therewith. The container has a flat open-cell porous annular pad surrounding the container and connected to the container. An open network adhesive is secured to one side of the pad for adhesively securing the electrode to the surface of the subject.

REFERENCES:
patent: 3623479 (1971-11-01), Day
patent: 3659586 (1972-05-01), Johns et al.
patent: 3795241 (1974-03-01), Golovko
patent: 3828766 (1974-08-01), Kresnow
patent: 3862633 (1975-01-01), Allison et al.

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