Sphygmomanometer and method for controlling optimum pressurizati

Details Sphygmomanometer and method for controlling optimum pressurizati Sphygmomanometer and method for controlling optimum pressurizati

1995-07-21

1997-09-02

Cohen, Lee S.

Surgery

Truss

Pad

128672, 128677, A61B 502

Patent

active

056620926

ABSTRACT:
A sphygmomanometer for controlling an optimum pressurization and minute exhaustion comprises a cuff which is wrapped around the upper arm of a subject for compressing the brachial artery. The cuff is pressurized with an air pump controlled by a microcontroller. The microcontroller is programmed to terminate the pressurization process at the point the systolic pressure is detected. The microcontroller further controls the exhaustion of air by switching a solenoid valve on and off and thereby negate the need for a costly minute exhaust valve. During the pressurization and depressurization process, pressure waves are transmitted from the brachial artery to a sensor where they are converted to an electrical signal for processing by the microcontroller. The microcontroller computes the systolic and diastolic pressure and routes the data to a display for visual readout.

REFERENCES:
patent: 4458690 (1984-07-01), O'Conner et al.
patent: 4567899 (1986-02-01), Kamens et al.
patent: 5280790 (1994-01-01), Brooks
patent: 5337751 (1994-08-01), Newel et al.
patent: 5467772 (1995-11-01), Souma

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