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Parameter compensated physiological monitor

  • US 20070073127A1
  • Filed: 11/27/2006
  • Published: 03/29/2007
  • Est. Priority Date: 09/25/2002
  • Status: Abandoned Application
First Claim
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1. A physiological monitor comprising:

  • an optical sensor providing a first sensor signal responsive to a plurality of wavelengths of optical radiation after attenuation by pulsatile blood flowing within a tissue site of a patient;

    a non-optical sensor providing a second sensor signal corresponding to the patient;

    a processor configured to derive a spectral characteristic of the tissue site from the first sensor signal;

    calibration data relating the spectral characteristic to a blood gas parameter of the patient; and

    a correction applied to the calibration data in response to the second sensor signal.

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