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Systems and methods for fast discharge in pacing circuits during RF interference

  • US 9,616,240 B2
  • Filed: 09/10/2015
  • Issued: 04/11/2017
  • Est. Priority Date: 09/10/2015
  • Status: Active Grant
First Claim
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1. A cardiac pacing system comprising:

  • a right atrial ring electrode;

    a right atrial tip electrode;

    a right ventricle ring electrode; and

    a pacing integrated circuit (IC) comprising;

    a first pace output node electrically coupled to the right atrial ring electrode;

    a pace return node electrically coupled to the right atrial tip electrode; and

    a second pace output node electrically coupled to the right ventricle ring electrode,wherein there is no switch and no other connection in the pacing IC from the first pace output node to ground, and wherein there is no switch and no other connection in the pacing IC from the pace return node to ground, such that the pacing IC has a floating fast discharge configuration that facilitates eliminating a DC rectification current generated from RF interference during a fast discharge phase.

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