Low power pulse oximeter

  • US 8,457,703 B2
  • Filed: 11/13/2007
  • Issued: 06/04/2013
  • Est. Priority Date: 07/02/2001
  • Status: Active Grant
First Claim
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1. A method of managing power consumption during continuous patient monitoring by adjusting behavior of a patient monitor, the method comprising:

  • driving one or more light sources configured to emit light into tissue of a monitored patient;

    receiving one or more signals from one or more detectors configured to detect said light after attenuation by said tissue;

    continuously operating a patient monitor at a lower power consumption level to determine measurement values for one or more physiological parameters of a patient;

    comparing processing characteristics to a predetermined threshold; and

    when said processing characteristics pass said threshold, transitioning to continuously operating said patient monitor at a higher power consumption level, wherein said continuously operating at said lower power consumption level comprises reducing activation of an attached sensor, said sensor positioning said light sources and said detectors proximate said tissue.

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