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Cardiac event categorization system

  • US 8,483,812 B2
  • Filed: 03/31/2008
  • Issued: 07/09/2013
  • Est. Priority Date: 02/04/2002
  • Status: Expired due to Fees
First Claim
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1. A system for detecting a cardiac event in a human patient, the system including:

  • at least two electrodes adapted for implantation in a patient for obtaining an electrical signal from the patient'"'"'s heart;

    an implantable device including a radio transceiver, a memory and a processor configured to;

    process the electrical signal to obtain R-R interval values and values of a heart signal parameter defining an ST deviation therefrom;

    categorize detected cardiac events into a low severity level and a high severity level based upon a combined function of said R-R interval values and said ST deviation values for comparison with a predetermined threshold for a selected R-R interval value;

    operative upon categorizing a cardiac event as a high severity level event, cause the transceiver to transmit a high severity event signal that includes both electrical signal waveform data associated with the high severity level event and an indication of the high severity level of the cardiac event;

    operative upon categorizing a cardiac event as a low severity level event, perform at least one of the following actions;

    (i) cause the transceiver to transmit a low severity event signal that includes both electrical signal waveform data associated with the low severity level event and an indication of the low severity level of the cardiac event;

    (ii) store electrical signal waveform data associated with the low severity level event.

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