Method and apparatus for aiding diagnostic scanning of the body

Details Method and apparatus for aiding diagnostic scanning of the body Method and apparatus for aiding diagnostic scanning of the body

1975-08-12

1976-09-14

Michell, Robert W.

Surgery

Truss

Perineal

128 21C, 128 21Z, 73344, 324 65P, A61B 505, A61H 3902

Patent

active

039800733

ABSTRACT:
A circuit having an amplifier coupled to an oscillator, the oscillator having a second amplifier and a feedback circuit. Changes in resistance between an electrode coupled to the circuit and a probe, also connected to the circuit, are responded to by the circuit. Output components are connected to the circuit for providing visual and audio signals corresponding to the resistance changes and for recording the changes upon a chart. The electrode is grasped by a patient, and the probe is the hand of a doctor using the technique of palpation upon the patient. The probe alternately is a structure, placed against the patient by the doctor, for simultaneously detecting the changes in resistance between the electrode and the structure and providing a second resistance change corresponding to the temperature of the portion of the patient contacted by the structure, the circuit responding to either resistance change to provide output signals corresponding to either the resistivity or the temperature of the contacted portion of the patient.

REFERENCES:
patent: 2012112 (1935-08-01), States
patent: 2328853 (1943-09-01), Sherrard
patent: 3064641 (1962-11-01), Manenti
patent: 3132644 (1964-05-01), Smith
patent: 3306282 (1967-02-01), Pierce
patent: 3491595 (1970-01-01), Griffeth
patent: 3657640 (1972-04-01), Jelinek et al.
patent: 3785368 (1974-01-01), McCarthy et al.

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