Method for monitoring body characteristics

Details Method for monitoring body characteristics Method for monitoring body characteristics

1975-11-14

1977-02-22

Michell, Robert W.

Surgery

Truss

Perineal

128 205V, A61B 505

Patent

active

040087123

ABSTRACT:
A method and apparatus for performing electrical measurement of body mutual electrical impedances to determine changes in total body water in normal and deranged states of the body. The apparatus is particularly useful in determining the progression of dialysis cases during the period when renal dialysis is being performed on the patient. The method and apparatus utilizes a special electrical circuit for measuring electrical characteristics at selected body locations. Certain electrical characteristics are measured such as the resistance, the capacitive impedance, and the total reactance of the body, and the phase angle is calculated or measured. Utilizing some of these measurements, the total body water relative to the body weight may be determined.

REFERENCES:
patent: 2184511 (1939-12-01), Bagno et al.
patent: 3452743 (1969-07-01), Reike
patent: 3730171 (1973-05-01), Namon
patent: 3742936 (1973-07-01), Blanie
patent: 3851641 (1974-12-01), Toole
patent: 3871359 (1975-03-01), Pacela
Mullick et al., "Diagnosis of Deep Electrical Impedance", The Am. J. of Surgery, vol. 119, pp. 417-422, Apr. 1970.
Geddes et al., "The Measurement...by Electrical Impedance, Am. J. of Med. Elec., Apr.-June, 1964, pp. 16-27.

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