Method and apparatus for measuring the bioelectrical activity un

Details Method and apparatus for measuring the bioelectrical activity un Method and apparatus for measuring the bioelectrical activity un

1976-04-07

1978-04-18

Michell, Robert W.

Surgery

Truss

Perineal

128 206E, 128 21R, 128 21E, 128DIG4, A61B 504

Patent

active

040845834

ABSTRACT:
Method and apparatus for measuring the bioelectrical activity of a patient, wherein a signal electrode is placed on a patient and a plurality of auxiliary electrodes are placed adjacent the signal electrode. The auxiliary electrodes are connected by a resistor network to provide a mean potential value and the difference between the mean potential value and the potential of the signal electrode is determined and fed to a recorder which indicates this difference value as indicative of the bioelectric activity under and within proximity of the signal electrode. The auxiliary electrodes can be arranged at the corners of a polygon with the signal electrode disposed in the center of the polygon. The entire assembly of electrodes can be mounted on a support device of insulating material.

REFERENCES:
patent: 2549836 (1951-04-01), McIntyre et al.
patent: 3848582 (1974-11-01), Milani et al.
Takagi et al., "The Electrodes-Triangle", Amer. Heart J., Sept. 1970, pp. 427-428.

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