Method of measuring blood pressure, and automatic sphygmomanomet

Details Method of measuring blood pressure, and automatic sphygmomanomet Method of measuring blood pressure, and automatic sphygmomanomet

1992-03-03

1994-08-09

Howell, Kyle L.

Surgery

Truss

Pad

128681, 36441303, A61B 502

Patent

active

053356659

ABSTRACT:
A method of measuring blood pressure, and an automatic sphygmomanometer for implementing this method, whereby an appropriate value of cuff inflation is achieved which is dependent upon the systolic blood pressure of a patient. Pulse waves are extracted from cuff pressure obtained through a pressure detector during inflation of the cuff, and the rate of change in the amplitude of the pulse waves is obtained by a control unit. When the rate of change obtained has exceeded a predetermined threshold value, it is judged that the internal cuff pressure has surpassed the patient's systolic blood pressure. In response, inflation of the cuff by means of a pump is terminated.

REFERENCES:
patent: 4009709 (1977-03-01), Link et al.
patent: 4754761 (1988-07-01), Ramsey, III et al.
patent: 4830019 (1989-05-01), Shirasaki et al.
patent: 5094245 (1992-03-01), Shirasky
patent: 5103830 (1992-04-01), Shinomiya
The Journal of Clinical Engineering-Jul./Aug. 1987, vol. 12, No. 4, pp. 297-303, Indirect Measurement of Arterial Pressure in the Limbs of Babies & Children by the volume Oscillometric Method.

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