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Apparatus and method of defibrillation

  • US 4,834,100 A
  • Filed: 05/12/1986
  • Issued: 05/30/1989
  • Est. Priority Date: 05/12/1986
  • Status: Expired due to Term
First Claim
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1. Defibrillation apparatus, comprising a bipolar catheter means having a pair of electrical conductors for conducting electrical energy, electrode means at one end of said catheter means for delivering electrical energy for defibrillation, said catheter means being positionable transvenously to position said electrode means at the heart to enable said electrode means to apply electrical shock to the heart to effect defibrillation, and Lown wave generating power supply means for supplying electrical energy to said catheter means in the form of an electrical signal consisting of a Lown waveform, wherein said catheter means is positionable transvenously to position said electrode means entirely in intravascular and intracardiac relation to a heart of a patient, and wherein said electrode means include a pair of electrodes that are spaced apart a distance for placement of one in the right ventricle and the other in the superior vena cava.

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