Electronic sphygmomanometer

Details Electronic sphygmomanometer Electronic sphygmomanometer

1982-07-22

1984-10-16

Cohen, Lee S.

Surgery

Truss

Pad

128681, A61B 502

Patent

active

044768761

ABSTRACT:
An electronic sphygmomanometer in which the gain of a Korotkoff sound amplifier for recognition of systolic blood pressure differs from that for recognition of diastolic blood pressure. A processor raises the amplifier gain upon recognizing systolic pressure, thereby establishing a mode for recognition of diastolic pressure. Alternatively, a trigger circuit, which produces a trigger signal in response to an input signal from the Korotkoff amplifier, has its threshold level set by the processor to a first value for recognition of systolic pressure and to lower second value for recognition of diastolic pressure, the lower second value being established following recognition of the systolic pressure.

REFERENCES:
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patent: 3533401 (1970-10-01), Streu
patent: 3878834 (1975-04-01), Sanderson
patent: 4058117 (1977-11-01), Kaspari
patent: 4137907 (1979-02-01), Jansen et al.
patent: 4188955 (1980-02-01), Sakamoto et al.
patent: 4214589 (1980-07-01), Sakamoto et al.
patent: 4216779 (1980-08-01), Squires et al.
patent: 4432373 (1984-02-01), Ogawa et al.

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