Apparatus and method for in vitro detection of abnormal tissues

Details Apparatus and method for in vitro detection of abnormal tissues Apparatus and method for in vitro detection of abnormal tissues

1986-08-04

1989-08-29

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Electrolyte properties

Using a conductivity determining device

324 61P, 324 65P, G01N 2728

Patent

active

048620920

ABSTRACT:
A tissue testing chamber having a hollow, electrically insulative housing separable into two parts or halves, each half including a plate-like working electrode and spaced therefrom an annular measuring electrode, with electrical leads provided to each of the electrodes for interconnection with external control and measuring equipment. Each housing half or test chamber half has a cavity communicating with both the working and measuring electrodes and an open end. The housing halves clamp the test specimen between them. A quantity of Ringer's solution is added to each housing cavity and the four electrodes are then connected in a four electrode impedance bridge with selectively variable impedances (e.g., capacitance) which on bridge balance provides capacitance of specimen.

REFERENCES:
patent: Re31333 (1983-08-01), Barben
patent: 2942176 (1960-06-01), Brownscombe
patent: 3302101 (1967-01-01), Glanville
patent: 4498481 (1985-02-01), Lemke
patent: 4540002 (1985-09-01), Atlas
patent: 4646000 (1987-02-01), Wills

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