Patent ID: 8788039
Filing Date: 2014-07-22
Classification: A61N

Abstract:
1. An implantable cardiac stimulation device comprising: an activity sensor that senses an activity level of a patient, wherein the activity level of the patient corresponds to an exercise state of the patient; a pulse generator that provides a first pacing pulse to a first chamber of a heart and a second pacing pulse to a second chamber of the heart, the first and second chambers being corresponding chambers and the first and second pacing pulses being separated in time by an interchamber pacing delay; and a timer that times the interchamber pacing delay, the interchamber pacing delay being related to the activity level of the patient sensed by the activity sensor, wherein the first and second chambers are a right ventricle and left ventricle respectively of the heart and wherein the interchamber pacing delay is an interventricular pacing delay, and wherein the timer automatically adjusts the interchamber pacing delay based on changes in the patient activity level.