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Apparatus for improved cardiac pacing and sensing using extracardiac indifferent electrode configurations

  • US 5,814,076 A
  • Filed: 02/09/1996
  • Issued: 09/29/1998
  • Est. Priority Date: 02/09/1996
  • Status: Expired due to Fees
First Claim
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1. An apparatus for sensing electrical heart signals and for applying a pacing signal across the heart muscle of a person, said apparatus comprising:

  • a pacemaker constructed to be implanted adjacent a pectoral muscle mass of said person;

    a first intracardiac catheter connected to said pacemaker and including a first intracardiac electrode positioned in a predetermined chamber of the heart; and

    a first extracardiac catheter connected to said pacemaker and including a first indifferent electrode thereon, said first extracardiac catheter having a length which enables said indifferent electrode to be positioned subcutaneously on said person at a location which is remote from said pectoral muscle mass to reduce myopotential sensing.

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