Body contact electrode structure for deriving electrical signals

Details Body contact electrode structure for deriving electrical signals Body contact electrode structure for deriving electrical signals

1977-02-07

1978-04-04

Michell, Robert W.

Surgery

Truss

Perineal

128 21E, 128417, 128DIG4, A61B 504

Patent

active

040820874

ABSTRACT:
An electrode structure for use with medical electronics instruments such as electromyographs is described. A thin, flexible body of non-conductive material has one or more wells therein. A flexible conductive member which provides an electrode is disposed at the bottom of each well. The spacing between a plurality of electrodes, which can provide bipolar and ground inputs to the medical electronic instrument, is precisely determined by virtue of the disposition of the electrodes in the wells. The electrode structure provides contact with a body surface, usually the skin. To facilitate the contact a conductive jelly is used. This conductive jelly is received in the wells. It makes contact with the electrodes. Ribs are provided in the regions between the electrodes which form a seal at the skin so as to prevent the flow of conductive fluid between electrodes; thus preventing short circuits. The flexibility of the structure provides for comfort and reliable long term attachment and also for maintaining the contact of the electrodes and sealing ribs with the skin as the skin and muscle beneath, flex.

REFERENCES:
patent: 2590876 (1952-04-01), Landauer
patent: 3387608 (1968-06-01), Figar
patent: 3420223 (1969-01-01), Day et al.
patent: 3472233 (1969-10-01), Sarbacher
patent: 3572322 (1971-03-01), Wade
patent: 3587565 (1971-06-01), Tatoien
patent: 3606881 (1971-09-01), Woodson
patent: 3741219 (1973-06-01), Sessions
patent: 3750649 (1973-08-01), Severingheus

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