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

摘要

The present disclosure provides a cardiac pacing system. The cardiac pacing system includes a right atrial ring electrode, a right atrial tip electrode, a right ventricle ring electrode, and a pacing integrated circuit (IC) including 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 the pacing IC has a fast discharge configuration that facilitates reducing or eliminating a DC rectification current generated from RF interference during a fast discharge phase.

主权项

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; anda 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.