Vascular sound detector

Details Vascular sound detector Vascular sound detector

1976-09-10

1979-02-27

Michell, Robert W.

Surgery

Truss

Perineal

128 205C, A61B 502

Patent

active

041413504

ABSTRACT:
Blood vessel or vascular sound collecting device (hereinafter simply referred to as sound detector) insertable in a manschette or cuff for collecting the blood vessel sound and supplying the data to an automatic sphygmomanometer, having a hollow unitary space of substantially rectangular shape in plan view, enveloped by a flexible inner side wall of substantially rectangular shape in plan view, and a rather thicker and less flexible outer side shell of substantially rectangular shape in plan view, with an elongated rib integrally formed therewith for preventing the hollow space from being squashed, and a highly sensitive microphone exposed in the hollow space for sound collecting, which sound detector has a fine aperture with diameter to prevent same from picking up noises and being affected by the fluctuation of internal air pressure.

REFERENCES:
patent: 910854 (1909-01-01), Pilling
patent: 2271467 (1942-01-01), Smithline
patent: 2699465 (1955-01-01), Hamilton
patent: 3076870 (1963-02-01), Jones, Jr.
patent: 3148677 (1964-09-01), Smith
patent: 3348534 (1967-10-01), Marx et al.
patent: 3525810 (1966-12-01), Adler
patent: 3633703 (1972-01-01), Littman
patent: 3742937 (1973-07-01), Manvel et al.

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