Implantable stimulation system for providing dual bipolar sensing using an electrode positioned in proximity to the tricuspid valve and programmable polarity

摘要

A single-pass pacing and/or shocking lead system is capable of sensing cardiac signal in the atrium and the ventricle in a "bipolar fashion" using a three-electrode structure: a first electrode in the atruim, a second electrode in the ventricle just below the tricuspid valve, and a third in the ventricle.