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PHYSIOLOGICAL PARAMETER TRACKING SYSTEM

  • US 20130274572A1
  • Filed: 02/26/2013
  • Published: 10/17/2013
  • Est. Priority Date: 08/28/2003
  • Status: Active Grant
First Claim
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1. A physiological parameter tracking method comprising the steps of:

  • providing a noninvasive physiological sensor that detects light of at least first and second wavelengths transmitted through body tissue carrying pulsing blood;

    inputting a physiological signal from the physiological sensor;

    calculating a reference parameter responsive to the physiological signal;

    calculating an ancillary parameter responsive to the physiological signal;

    calculating a slow parameter based at least in part on the reference parameter and the ancillary parameter, wherein the slow parameter varies slowly in time relative to the reference parameter and the ancillary parameter; and

    determining a physiological measurement responsive to the reference parameter and the slow parameter.

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