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System for determining confidence in respiratory rate measurements

  • US 8,430,817 B1
  • Filed: 10/15/2010
  • Issued: 04/30/2013
  • Est. Priority Date: 10/15/2009
  • Status: Active Grant
First Claim
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1. A method of triggering an alarm based on information related to a physiological parameter, the method comprising:

  • by a processor;

    providing functionality for a clinician to specify an alarm delay time;

    monitoring a first physiological parameter reflecting physiological information obtained from a physiological sensor coupled to a patient, the first physiological parameter comprising respiratory rate;

    determining whether the first physiological parameter has satisfied an a first alarm threshold for an amount of time corresponding to the alarm delay time;

    triggering an alarm in response to said determining that a value of the first physiological parameter has satisfied the first alarm thresholdmonitoring a second physiological parameter, the second physiological parameter comprising oxygen saturation;

    determining whether the second physiological parameter has fallen below a second alarm threshold;

    automatically reducing the alarm delay time in response to the second physiological parameter having fallen below the second alarm threshold; and

    modifying a display of a confidence indicator based on the amount of time that the first physiological parameter has satisfied the first alarm threshold.

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