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Staged energy concentration for a defibrillator

  • US 5,407,444 A
  • Filed: 12/18/1992
  • Issued: 04/18/1995
  • Est. Priority Date: 12/18/1992
  • Status: Expired due to Term
First Claim
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1. An implantable defibrillator for delivering electrical defibrillation pulses to a plurality of implanted electrodes proximate a heart of a human patient for treating a ventricular fibrillation, comprising:

  • monitoring means for electrically monitoring the heart for an occurrence of ventricular fibrillation;

    charge storage means for storing an electrical defibrillation pulse to be delivered to the plurality of implanted electrodes;

    control means for controlling the charging and discharging of the charge storage means in response to each occurrence of ventricular fibrillation; and

    battery means for powering the monitoring and control means and for providing the electrical energy for charging the charge storage means, the battery means comprising a first, non-rechargeable battery and a second, rechargeable battery for rapidly recharging the charge storage means.

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