Patent ID: 9095717
Filing Date: 2015-08-04
Classification: A61N

Abstract:
1. A method for analyzing valve-related mechanical timing, the method comprising: collecting cardiac signals associated with an atrial chamber of interest using an implantable medical device; collecting dynamic impedance (DI) data along an atria-function focused (AFF) vector to form a DI data set, the DI data set including information corresponding to a mechanical function (MF) of a valve associated with the atrial chamber of interest; identifying, from the cardiac signals, an intra-atrial conduction timing (IACT) associated with the atrial chamber of interest; estimating an MF landmark at which the mechanical function of the valve occurs based on the DI data set; analyzing a timing delay between the MF landmark and the IACT; adjusting a therapy, based on the timing delay, to encourage atrial contribution to ventricular filling; and applying the adjusted therapy to one or more chambers of the heart using the implantable medical device.