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Method and apparatus for measuring blood pressure by the oscillometric technique

  • US 6,719,703 B2
  • Filed: 06/15/2001
  • Issued: 04/13/2004
  • Est. Priority Date: 06/15/2001
  • Status: Active Grant
First Claim
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1. A method for calculating the systolic blood pressure of a subject using the oscillometric technique, the method comprising:

  • a) obtaining a value for the peak amplitude Amax of an oscillometric envelope;

    b) determining a cuff pressure, CP, which corresponds in time with Amax, this pressure representing the MAP of the subject;

    c) computing a variable value PIPSBP as a function of MAP;

    d) performing the calculation Asbp=Amax*PIPSBP to determine a systolic amplitude value Asbp along the oscillometric envelope; and

    e) determining the cuff pressure C which corresponds in time to Asbp, this value representing the systolic blood pressure (SBP) of the subject.

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