Patent ID: 9668665
Date: 2017-06-06
CPC Classifications: A61B,A61N

Claim:
1. A method of accelerating identification of an arrhythmia in an implantable cardiac treatment system, the implantable cardiac treatment system comprising at least two electrodes for sensing cardiac activity coupled, electrically, to operational circuitry for analyzing sensed cardiac activity, the method comprising the operational circuitry: applying a detection threshold to a sensed cardiac activity signal to detect cardiac events; identifying a plurality of closely coupled detected cardiac events, wherein the plurality of closely coupled detected includes at least two detected cardiac events occurring within a predetermined coupling time interval; setting a window of analysis preceding at least one of the closely coupled detected cardiac events; identifying characteristic slope points in the sensed signal in the window of analysis and labeling the slope points as at least ABAB; determining whether an arrhythmia pattern exists in which: if an arrhythmia pattern exists, applying an acceleration condition to an arrhythmia detection method to cause operational circuitry of the implantable cardiac treatment system to reach a declaration of a treatable arrhythmia and deliver a therapy via at least one of the electrodes to terminate the arrhythmia.