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Noninvasive multi-parameter patient monitor

  • US 8,560,032 B2
  • Filed: 05/22/2012
  • Issued: 10/15/2013
  • Est. Priority Date: 03/01/2005
  • Status: Active Grant
First Claim
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1. A method of determining which of a plurality of physiological measurements to measure based on the signal quality of the signal, the method comprising:

  • using a sensor configured to measure at least two different physiological measurements to obtain a signal from a light sensitive detector, the sensor including at least three different light emitters emitting at least three different wavelengths of light through tissue of a living patient and detecting the light after attenuation of the tissue;

    determining a signal quality of the signal;

    determining which of the at least two different physiological measurements are capable of being measured based on the signal quality determination; and

    activating only enough of the at least three different light emitters necessary to obtain the measurements capable of being measured.

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