Oscillometric-type blood pressure measuring apparatus

Details Oscillometric-type blood pressure measuring apparatus Oscillometric-type blood pressure measuring apparatus

1992-07-09

1993-12-07

Cohen, Lee S.

Surgery

Truss

Pad

A61B 502

Patent

active

052675670

ABSTRACT:
An oscillometric-type automatic blood pressure measuring apparatus, including a pressure device such as a cuff, an oscillometric-type blood pressure measuring device for (a) occluding an artery of a patient by increasing the cuff pressure, (b) detecting a first pulse wave transmitted from the artery to the cuff by reducing the increased cuff pressure, and (c) determining a first systolic blood pressure of the patient based on variation in amplitude of successive pulses of the first pulse wave, a display for indicating the determined first systolic blood pressure, a detecting device disposed downstream of the cuff, for detecting a second pulse wave produced from a portion of the artery located downstream of the cuff, a first determining device for determining, as an initial-pulse detection pressure, a cuff pressure at the time of detection of an initial pulse of the second pulse wave after the commencement of reduction of the cuff pressure in each of periodic measurement cycles, a second determining device for determining, in a current measurement cycle, a second systolic blood pressure of the patient based on an initial-pulse detection pressure determined in the current cycle and one or more first systolic blood pressures measured in one or more cycles prior to the current cycle, the display means indicating the second systolic blood pressure value before a first systolic blood pressure is determined and displayed in the current cycle.

REFERENCES:
patent: 4830017 (1989-05-01), Perry et al.
patent: 4928701 (1990-05-01), Harada et al.

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