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Endocardial defibrillation electrode system

  • US 4,932,407 A
  • Filed: 12/15/1988
  • Issued: 06/12/1990
  • Est. Priority Date: 12/15/1988
  • Status: Expired due to Term
First Claim
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1. A method of defibrillating a patient'"'"'s heart, comprising the steps of:

  • transvenously inserting a first electrode lead into the ventricle of said patient'"'"'s heart, said first electrode lead including a first electrode near the distal end of said first electrode lead, said first lead inserted such that said first electrode is located in the apex of the right ventricle;

    transvenously inserting a second electrode lead into the coronary sinus and great vein of said patient'"'"'s heart, said second electrode lead including at least second and third spaced, mutually insulated electrodes adjacent a first point in the vicinity of the distal end of said second electrode lead and adjacent to a second point proximal to said first point, respectively, said second and third electrodes arranged along said second electrode lead such that when said second point is in the vicinity of the opening of said coronary sinus, said first point is located in the great vein of said patient'"'"'s heart; and

    applying a defibrillation pulse between said first electrode surface and at least one of said second and third electrodes.

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