Patent ID: 9421390
Filing Date: 2016-08-23
CPC Classification: A61B,A61N

Claim Text:
1. An implantable cardiac stimulus device comprising electrodes coupled to operational circuitry for sensing cardiac activity and detecting events in the cardiac activity, the operational circuitry further being configured to deliver therapy in response to identified conditions, wherein the operational circuitry is configured to: observe features of the cardiac signal for a set of detected events and use the observed features to select from at least: use the selected set of arrhythmia detection parameters to analyze the sensed cardiac activity; wherein the first set of arrhythmia declaration parameters is different from the second set of arrhythmia declaration parameters such that, for at least a set of sensed cardiac activity data, analysis using the first set of arrhythmia declaration parameters would not declare a treatable arrhythmia while analysis using the second set of arrhythmia declaration parameters would declare at treatable arrhythmia; and wherein the operational circuitry is configured to observe features of the cardiac signal for the set of detected events by determining whether intervals defined between the detected events in the set of detected events are stable.