Patent ID: 6961616
Filing Date: 2005-11-01
Classification: A61N

Abstract:
1. A method of optimizing atrio-ventricular delay over a patient's full range of activity for use in operating an implantable cardiac pacing device comprising the steps of: (a) measuring atrio-ventricular conduction time for a plurality of beats and logging the values based on periodic repeating programmable sampling intervals to produce cumulative data; (b) constructing a current template of atrio-ventricular conduction time in relation to one or more other sensed parameters of interest over said full range of patient activity levels from the said cumulative data; (c) based on a then current template derive a suggested optimum atrio-ventricular delay; and (d) wherein the data from each measurement is based on a discrete number of beats and is processed by exponential averaging and stored in incremental bins according to the value of the related parameter of interest and wherein a minimum number of beats must be averaged in a minimum number of bins to trigger template generation including updating.