Patent ID: 9061155
Filing Date: 2015-06-23
Classification: A61B,A61N

Abstract:
1. A medical device system for guiding a cardiac ablation therapy, comprising; a plurality of implantable electrodes for sensing cardiac signals; an implantable cardiac event detector coupled to the plurality of implantable electrodes for detecting spontaneous cardiac events from the sensed cardiac signals; an implantable pulse generator coupled to the plurality of implantable electrodes for delivering pacing pulses; an implantable controller to control the implantable pulse generator to deliver a first plurality of pacing pulses in response to detecting a spontaneous cardiac event using a first electrode of the plurality of implantable electrodes and measure a return cycle length in response to the first plurality of pacing pulses; and a processor configured to cluster the spontaneous cardiac event with a previously detected spontaneous cardiac event in response to the measured return cycle length to establish a cluster of spontaneous cardiac events, wherein the implantable controller is further configured to compute a first transit time interval using the return cycle length, the computed first transit time interval corresponding to a distance traversed by a depolarization associated with the last one of the first plurality of pacing pulses when a reset condition occurs, and wherein the processor is further configured to estimate in response to the computed first transit time interval a target ablation site for treating an episode type of the cluster of spontaneous cardiac events with the ablation therapy.