Korotkov sound sensor

Details Korotkov sound sensor Korotkov sound sensor

1977-08-19

1980-05-13

Michell, Robert W.

Surgery

Truss

Pad

179 1ST, A61B 502

Patent

active

042023483

ABSTRACT:
A Korotkov sound sensor having a microphone in a housing body which is nearly rectangular in shape, made of elastic material and having a hollow therein. A flexible thin film to be placed adjacent an artery of an individual is adhered to the periphery of the hollow to form an air space. The housing body hardly transmits external noises to the microphone, and Korotkov sounds from an artery of the individual are transmitted to the microphone through the thin film and the air space. Highly sensitive and accurate measurement of blood pressure is easily achieved by this system.

REFERENCES:
patent: D185178 (1959-05-01), Spears
patent: 910854 (1909-01-01), Pilling
patent: 2271467 (1942-01-01), Smithline
patent: 2699465 (1955-01-01), Hamilton
patent: 3148677 (1964-09-01), Smith
patent: 3416516 (1968-12-01), Cohen et al.
patent: 3633703 (1972-01-01), Littman
patent: 4141350 (1979-02-01), Shinoda

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