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Methods and systems for qualifying a calculated value based on baseline and deviation information

  • US 9,192,310 B2
  • Filed: 09/11/2012
  • Issued: 11/24/2015
  • Est. Priority Date: 09/11/2012
  • Status: Active Grant
First Claim
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1. A subject monitoring pulse oximetry system for updating a display rate for a subject, comprising:

  • a pulse oximetry sensor configured to detect light attenuated by the subject and generate a photoplethysmographic (PPG) signal based on the detected attenuated light;

    a pulse oximeter coupled to the pulse oximetry sensor;

    a display coupled to the pulse oximeter, wherein the display is configured to display the display rate for the subject, wherein;

    the pulse oximeter is configured to;

    receive the PPG signal;

    receive a calculated value that may be indicative of a physiological rate of the subject;

    determine a first value indicative of a baseline of the PPG signal;

    determine a second value indicative of a deviation of the PPG signal from the baseline;

    qualify the calculated value based on the first value and the second value; and

    update the display rate on the display based on the qualified value.

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