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Method and system for implanting self-anchoring epicardial defibrillation electrodes

  • US 4,991,578 A
  • Filed: 04/04/1989
  • Issued: 02/12/1991
  • Est. Priority Date: 04/04/1989
  • Status: Expired due to Fees
First Claim
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1. A method of percutaneously implanting a defibrillation lead within the intrapericardial space of a patient'"'"'s heart, the defibrillation lead having a distal electrode, a body, and proximal connection means capable of making electrical contact to an implantable defibrillation device, the method comprising the steps of:

  • distending the pericardium from the epicardium by injecting a small volume of fluid into the pericardium, so that pericardial effusion results;

    percutaneously perforating the pericardium by advancing a perforation device having a lumen therethrough towards the distended pericardium until the fluid flows out of the lumen, thereby indicating that the pericardium wall has been perforated;

    inserting a guide wire into the pericardium through the lumen of the perforation device until a distal end thereof is positioned within the pericardium;

    enlarging the perforated opening in the pericardium by inserting an introducer over the guide wire and into the tissue; and

    inserting the distal electrode of the defibrillation lead within the introducer until the distal electrode is likewise positioned within the pericardium.

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