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Methods for measuring blood pressure

  • US 10,213,116 B2
  • Filed: 02/09/2016
  • Issued: 02/26/2019
  • Est. Priority Date: 11/18/2008
  • Status: Active Grant
First Claim
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1. A method of estimating a central systolic blood pressure (cSBP) of a human subject comprising:

  • obtaining a peripheral blood pressure waveform of a pulse of a human subject and at least two peripheral blood pressure measurements over at least one cardiac cycle of the human subject from a blood pressure cuff placed about an arm of the human subject about a brachial artery when pressure in the blood pressure cuff is inflated to a sub-systolic pressure;

    applying a transfer function to the obtained peripheral blood pressure waveform to provide an estimate of a central blood pressure waveform of the subject;

    calibrating the obtained peripheral blood pressure waveform using the at least two peripheral blood pressure measurements, wherein the at least two peripheral blood pressure measurements comprise at least two of peripheral systolic blood pressure (pSBP), peripheral diastolic blood pressure (pDBP) and peripheral mean arterial pressure (pMAP); and

    electronically estimating the cSBP of the human subject using the calibrated peripheral blood pressure waveform and the estimate of the central blood pressure waveform.

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