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Blood pressure measurement apparatus and associated method

  • US 5,425,372 A
  • Filed: 06/22/1993
  • Issued: 06/20/1995
  • Est. Priority Date: 04/13/1990
  • Status: Expired due to Term
First Claim
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1. A method of measuring blood pressure, comprising:

  • inflating a cuff to gradually increase cuff pressure around an artery having a movable arterial wall;

    determining changes in power of the arterial wall motion as the wall stretches and contracts in response to the increasing cuff pressure and a pulsating blood flow through the artery, the power being defined as the product of a velocity of the arterial wall motion and an acceleration of the arterial wall motion; and

    comparing the changes in power to a threshold power level to determine diastolic and systolic pressure readings as indicated by the cuff pressure during decreasing cuff pressure.

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