Patent ID: 7664547
Filing Date: 2010-02-16
Classification: A61N

Abstract:
1. An active implantable medical device with biventricular pacing, comprising: means for collecting a signal of endocardial acceleration (EA), wherein the signal of EA over one given cycle comprises a first peak during the isovolumetric ventricular contraction phase (PEA I) and a second peak during the isovolumetric ventricular relaxation (PEA II), means for determining a performance value representative of at least one peak of said first peak and said second peak, means for providing pacing pulses to a plurality of pacing sites of the device in a plurality of pacing configurations, and means for searching for an optimal pacing configuration out of the plurality of pacing configurations, said means for searching further comprising assessing means, able to determine, for each pacing configuration of a plurality of pacing configurations, a performance index, wherein the means for searching is able to vary, in a controlled manner, a functional parameter of the device over a predetermined range to derive the performance index based on the successive performance values over the predetermined range.