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Method and apparatus employing a scaling exponent for selectively defibrillating a patient

  • US 6,438,419 B1
  • Filed: 09/28/2000
  • Issued: 08/20/2002
  • Est. Priority Date: 09/28/2000
  • Status: Expired due to Fees
First Claim
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1. A defibrillator for selectively delivering a defibrillation pulse to a patient, said defibrillator comprising:

  • electrodes adapted for placement on the patient;

    a monitoring circuit for providing an electrocardiogram (ECG) of the patient;

    a defibrillation pulse generator including an energy store for delivering a defibrillation pulse;

    a switch in electrical communication with the monitoring circuit and the defibrillation pulse generator for selectively electrically connecting the monitoring circuit and the defibrillation pulse generator to the electrodes; and

    a control system in electrical communication with the monitoring circuit, the defibrillation pulse generator, and the switch, said control system comprising means for;

    (i) causing the switch to electrically connect the monitoring circuit to the electrodes in order to provide the ECG of the patient, (ii) determining a scaling exponent for the patient from the ECG thereof , and (iii) comparing the scaling exponent to a predetermined value and selectively causing the switch to electrically connect the defibrillation pulse generator to the electrodes in order that the energy store delivers the defibrillation pulse to the patient.

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