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Respiration monitoring system based on sensed blood pressure variations

  • US 6,506,161 B2
  • Filed: 08/10/2001
  • Issued: 01/14/2003
  • Est. Priority Date: 09/28/1995
  • Status: Expired due to Term
First Claim
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1. A method comprising:

  • obtaining a time-varying blood pressure signal;

    extracting a sequence of blood pressure features from the blood pressure signal, the blood pressure features including one of systolic points and diastolic points;

    curve-fitting to the extracted sequence of selected blood pressure features to yield a fitted signal including respiration information; and

    obtaining respiration from the fitted signal.

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