Patent ID: 8996101
Filing Date: 2015-03-31
Classification: A61B,A61N,G16H

Abstract:
1. A method for detecting cardiac events in a medical device, comprising: sensing cardiac electrical signals representative of electrical activity of a heart of a patient; detecting the cardiac event in response to the sensed cardiac signals; determining an indication of signal reliability corresponding to the sensed cardiac signals as being one of a reliable signal and a not reliable signal; switching operation of the device between a first mode of determining whether the sensed signal is one of treatable and not treatable and a second mode of determining whether the sensed signal is one of treatable and not treatable in response to the determined indication of signal reliability; sensing heart sounds and generating heart sounds signals representative of the sensed heart sound signals; and switching to the first mode in response to the indication of signal reliability corresponding to the sensed signal being a reliable signal, wherein the first mode comprises determining an ensemble averaged heart sound signal dependent on the cardiac electrical signal.