×

Implantable device for preventing tachyarrhythmias

  • US 5,158,079 A
  • Filed: 02/25/1991
  • Issued: 10/27/1992
  • Est. Priority Date: 02/25/1991
  • Status: Expired due to Term
First Claim
Patent Images

1. An implantable device for preventing tachyarrhythmias of a human heart which has arrhythmogenic tissue, said device comprising:

  • a pluarilty of electrodes configured for electrical contact with the heart, said electrodes being arranged for placement in proximity to said arrhythmogenic tissue;

    sensing means including a single sensing electrode for sensing electrical activations of one chamber of the heart;

    generator means coupled to said plurality of electrodes for providing said plurality of electrodes with an electrical pulse during each said sensed electrical activation responsive to said sensing means;

    said plurality of electrodes being configured for electrical contact with the left ventricle of the heart and about said arrhythmogenic tissue and said sensing means single sensing electrode being configured for electrical contact with the right ventricle of the heart;

    means for detecting ventricular tachycardia coupled to said sensing electrode and arranged for causing said generator means to provide said plurality of electrodes with a second electrical pulse after detecting ventricular tachycardia and during one of said sensed electrical activations; and

    said electrical pulse being on the order of 25 microjoules per electrode and said second electrical pulse being on the order of 1.5 joules.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×