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METHODS AND SYSTEMS FOR ALERTING PRACTITIONERS TO PHYSIOLOGICAL CONDITIONS

  • US 20150342541A1
  • Filed: 08/13/2015
  • Published: 12/03/2015
  • Est. Priority Date: 02/19/2008
  • Status: Active Grant
First Claim
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1. A system, comprising:

  • an input configured to receive an alarm sensitivity from a user; and

    a processor coupled to the input and configured to;

    determine a presence of one or more oxygen desaturation patterns in a photoplethsymograph (PPG) signal;

    determine a value for an integral if the PPG signal is outside of a PPG range or a PPG threshold;

    calculate a combined alarm limit based on an integral threshold and the alarm sensitivity;

    compare the value of the integral to the combined alarm limit when the one or more oxygen desaturation patterns are present;

    determine if the combined alarm limit has been violated based at least in part on the comparison; and

    provide an indication of sleep apnea in response to the determination that the combined alarm limit has been violated.

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