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Method for determining diastolic arterial blood pressure in a subject

  • US 4,718,426 A
  • Filed: 01/22/1987
  • Issued: 01/12/1988
  • Est. Priority Date: 02/17/1984
  • Status: Expired due to Fees
First Claim
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1. A method of determining a measure of the diastolic arterial blood pressure in a subject comprising the steps of:

  • determining a group, of a pre-selected number of sequentially occurring individual pressure waveforms, from all the pressure waveforms occurring during deflation of an occlusive cuff, wherein said group possesses maximum average amplitude,selecting, in accordance with pre-selected criteria, at least one individual pressure waveform from the group and setting mean pressure of the subject equal to the occlusive cuff pressure corresponding to the selected individual pressure waveform,determining the systolic pressure of the subject, andascertaining the measure of diastolic pressure in accordance with the formula;

    
    
    space="preserve" listing-type="equation">D=AM-Sy/(A-Y) for at least a chosen one of all of said pressure waveforms in whichD is the measure of diastolic pressure, A is the uncalibrated peak amplitude of said chosen pressure waveform, Y is the mean value (area/duration) of said chosen pressure waveform, and S and M are the systolic and mean pressure values respectively, associated with said subject.

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