Readout electrode assembly for measuring biological impedance

Details Readout electrode assembly for measuring biological impedance Readout electrode assembly for measuring biological impedance

1975-02-24

1976-05-18

Michell, Robert W.

Surgery

Truss

Perineal

128 205V, 128 21Z, 128DIG4, A61B 504

Patent

active

039570371

ABSTRACT:
The invention comprises of a pair of readout ring electrodes which are used in conjunction with apparatus for measuring the electrical impedance between different points in the body of a living animal to determine the amount of blood flow therebetween. The readout electrodes have independently adjustable diameters to permit attachment around different parts of the body between which it is desired to measure electric impedance. The axial spacing between the electrodes is adjusted by a pair of rods which have a first pair of ends fixedly attached to one electrode and a second pair of ends slidably attached to the other electrode. Indicia are provided on the outer surface of the ring electrodes and on the surface of the rods to permit measurement of the circumference and spacing between the ring electrodes. The ring electrodes are electrically isolated from each other.

REFERENCES:
patent: 431978 (1890-07-01), Jackson
patent: 3398740 (1968-08-01), Figar
patent: 3476104 (1969-11-01), Davis
patent: 3517661 (1970-06-01), Buffington
patent: 3542010 (1970-11-01), Love
patent: 3545430 (1970-12-01), Figar
patent: 3659614 (1972-05-01), Jankelson
patent: 3831589 (1974-08-01), Deering et al.

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