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System and method for diagnosing sleep apnea based on results of multiple approaches to sleep apnea identification

  • US 8,758,243 B2
  • Filed: 02/02/2011
  • Issued: 06/24/2014
  • Est. Priority Date: 02/02/2010
  • Status: Active Grant
First Claim
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1. A method of determining the physiological status of a patient, comprising:

  • monitoring the patient with at least one sensor to produce physiological parameter data comprising a sequence indicative of blood oxygen saturation over a time period;

    analyzing the physiological parameter data with a first pattern recognition feature to identify indications of sleep apnea;

    calculating a first sleep apnea metric with the first pattern recognition feature based on indications of sleep apnea identified by the first pattern recognition feature in the physiological parameter data;

    analyzing the physiological parameter data with a second pattern recognition feature to identify indications of sleep apnea;

    calculating a second sleep apnea metric with the second pattern recognition feature based on indications of sleep apnea identified by the second pattern recognition feature in the physiological parameter data;

    applying an arbitration with an arbitrator to the first and second sleep apnea metrics to determine a single sleep apnea metric, wherein applying the arbitration further comprises assigning a weighted value to each of the sleep apnea metrics based on a type of algorithm performed by the pattern recognition feature associated with each metric; and

    communicating the single sleep apnea metric to an output feature to display as an indication of the patient'"'"'s status and/or to control a therapeutic device.

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