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Outpatient health emergency warning system

  • US 10,238,885 B2
  • Filed: 04/15/2013
  • Issued: 03/26/2019
  • Est. Priority Date: 04/13/2012
  • Status: Active Grant
First Claim
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1. A medical system for sensing a physiological state requiring defibrillation in a patient, the system comprising:

  • a baseline signal sensor to generate a baseline signal relating to an activity level of a patient over time, the activity level determined based on one or more of motion of the patient or electrical activity of a heart of the patient;

    a physiological parameter measuring device comprising at least one parameter sensor having a higher power consumption than the baseline signal sensor, the at least one parameter sensor having a low power state during which the physiological parameter measuring device sleeps and a higher power state during which the at least one parameter sensor outputs at least one physiological parameter signal indicative of at least one physiological parameter of the patient; and

    a processor configured to;

    control the at least one parameter sensor to enter the higher power state to output the physiological parameter signal responsive to a trigger event determined from the baseline signal, the trigger event comprising one or more of reduction of the motion of the patient or reduction of the electrical activity of the heart of the patient below predetermined threshold boundaries over time; and

    assess the at least one physiological parameter signal to determine whether a physiological state requiring defibrillation in a patient is present.

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