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PHYSIOLOGICAL PARAMETER TRACKING SYSTEM

  • US 20080027294A1
  • Filed: 08/06/2007
  • Published: 01/31/2008
  • Est. Priority Date: 08/28/2003
  • Status: Active Grant
First Claim
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1. A physiological parameter tracking system comprising:

  • a physiological signal having at least first and second intensity signal components received from a light-sensitive detector that detects light of at least first and second wavelengths transmitted through body tissue carrying pulsing blood;

    a first calculator configured to output a reference parameter responsive to the physiological signal;

    a second calculator configured to output an ancillary parameter responsive to the physiological signal;

    a third calculator configured to output a slow parameter that is a function of the reference parameter and the ancillary parameter and is slowly varying in time relative to the reference parameter and the ancillary parameter; and

    a fourth calculator configured to output a physiological measurement responsive to the reference parameter and the slow parameter.

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