Electronic sphygmomanometer

Details Electronic sphygmomanometer Electronic sphygmomanometer

1977-11-29

1979-12-25

Marlo, George J.

Surgery

Truss

Pad

A61B 502

Patent

active

041800613

ABSTRACT:
An electronic sphygmomanometer of simplified construction. Systolic and diastolic blood pressure are both indicated by the flashing of a light emission diode on receiving the Korotkov sound signals. A filtering circuit for passing Korotkov sound signals and eliminating pulse sound signals and other noise is used which has a passband with a low cutoff frequency of approximately 40 Hz with a sharp slope and high cutoff frequency of approximately 90 Hz with a gradual slope.

REFERENCES:
patent: 3651798 (1972-03-01), Egli et al.
patent: 3742937 (1973-07-01), Manuel et al.
patent: 3814083 (1974-06-01), Fletcher et al.

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