Patent ID: 8626280
Filing Date: 2014-01-07
Classification: A61B,A61N

Abstract:
1. An implantable cardiac stimulus device (ICSD) comprising a canister housing operational circuitry and a lead electrode assembly including a plurality of electrodes disposed thereon, with the lead electrode assembly configured to couple to the canister to electrically couple the operational circuitry to the electrodes on the lead electrode assembly, the operational circuitry being configured to perform a method of cardiac signal analysis comprising: the operational circuitry detecting a series of events; the operational circuitry identifying intervals between consecutive detected events; the operational circuitry marking individual detected events as either True or False based upon a set of rules directed at identifying overdetections; the operational circuitry determining whether a pattern of overdetection has been identified and: the operational circuitry performing rate analysis using combined intervals, if any, and intervals between consecutive true events, but not using intervals immediately before and after suspect events, if any; and the operational circuitry using the rate analysis to determine whether a high cardiac rate condition needing therapy is likely occurring.