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Robust alarm system

  • US 10,092,249 B2
  • Filed: 03/30/2015
  • Issued: 10/09/2018
  • Est. Priority Date: 10/14/2005
  • Status: Active Grant
First Claim
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1. A patient monitoring device comprising:

  • a driving circuit configured to drive one or more emitters;

    a front end processing circuit configured to receive a signal from a detector responsive to light from said emitters attenuated by body tissue;

    an alarm configured to provide a first alert to a caregiver;

    a processor responsive to said front end to process said signal to determine one or more measurement values for one or more physiological parameters of a patient being monitored, said processor also configured to trigger said alarm when one or more of said measurement values should receive caregiver review; and

    a malfunction indicator providing a second alert that said alarm was nonresponsive when triggered by said processor, wherein said second alert is configured to indicate at least one of a particular fault type or fault location associated with said nonresponsive alarm, wherein said processor is further configured to deactivate one or more alarm subsystems in response to said indication of said particular fault type or fault location.

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