Patent ID: 9468392
Filing Date: 2016-10-18
CPC Classification: A61B,A61N

Claim Text:
1. A method comprising: sensing, by an implantable medical device, a cardiac electrogram of a heart of a patient; identifying, by the implantable medical device, a plurality of cardiac depolarizations within the cardiac electrogram; determining, by the implantable medical device, that one or more of the cardiac depolarizations are paced cardiac depolarizations resulting from delivery of a pacing pulse to the heart by another implantable medical device without detecting the pacing pulse and without communicating with the other implantable medical device; identifying, by the implantable medical device, one or more paced cardiac depolarization waveforms of the one or more paced cardiac depolarizations; determining, by the implantable medical device, a paced cardiac depolarization waveform morphological template based on the one or more identified paced cardiac depolarization waveforms; determining, by the implantable medical device, that the paced cardiac depolarization waveform morphological template is a paced normal cardiac depolarization waveform morphological template; comparing, by the implantable medical device, the paced normal cardiac depolarization waveform morphological template to subsequent cardiac depolarization waveforms; and detecting a cardiac tachyarrhythmia based on the comparison of the paced normal cardiac depolarization waveform morphological template to subsequent cardiac depolarization waveforms.