Patent Document ID: 9339662
Application ID: 14057416
Patent Flag: 1

Claim One:
1. A method of cardiac signal analysis in an implantable medical device (IMD), the IMD including a number of implantable electrodes and operational circuitry coupled to the implantable electrodes for performing the method of cardiac signal analysis, the method comprising: a) the operational circuitry detecting events in a signal; b) the operational circuitry determining which detected events to certify for use in rhythm identification by: i) applying interval analysis on a set of detected events in order to identify overdetected events such that, if a likely overdetection is identified, the likely overdetection is not certified; ii) applying analysis to identify overdetected events using interval and shape characteristics of pairs of consecutive events such that, if a likely overdetection is identified, the likely overdetection is not certified; and iii) certifying at least some detected events of the set of detected events; and c) the operational circuitry determining whether a malignant cardiac rhythm is occurring using only the certified detected events.