Patent ID: 7369893
Filing Date: 2008-05-06
Classification: A61N

Abstract:
1. A method for delivering therapy in a medical device, comprising: determining, prior to detection of a cardiac event requiring the delivered therapy, the presence of a lead-related condition; determining, in response to a lead-related condition being present, the presence of oversensing; and controlling delivery of therapy in response to the lead-related condition and oversensing being present, wherein determining the presence of a lead-related condition comprises: determining whether a first oversensing criteria is satisfied; determining whether a second oversensing criteria is satisfied; determining whether an impedance criteria has been satisfied; and generating an alert in response to more than one of the first oversensing criteria, the second oversensing criteria and the impedance criteria being satisfied, wherein determining whether a first oversensing criteria is satisfied comprises: determining whether a predetermined number of RR-intervals are within a first predetermined time period subsequent to a blanking period associated with a sensing device; and determining whether the predetermined number of RR-intervals occur within a second predetermined time period.