Patent ID: 8781579
Filing Date: 2014-07-15
Classification: A61N

Abstract:
1. An implantable medical device for delivering cardiac therapy to a heart of a subject comprising: a lead connector having i) a first terminal electrically connectable to a first electrode terminal of a quadropolar ventricular lead, ii) a second terminal electrically connectable to a second electrode terminal of said quadropolar ventricular lead, iii) a third terminal electrically connectable to a first middle electrode terminal of said quadropolar ventricular lead, and iv) a fourth terminal electrically connectable to a second middle electrode terminal of said quadropolar ventricular lead, said quadropolar ventricular lead having a ventricular basal electrode electrically connected to said first electrode terminal and being adapted for implantation in connection with a basal portion of a ventricle of said heart, a ventricular apical electrode electrically connected to said second electrode terminal and being adapted for implantation in connection with an apical portion of said ventricle, a first ventricular middle electrode electrically connected to said first middle electrode terminal and a second ventricular middle electrode positioned on said quadropolar ventricular lead between said first ventricular middle electrode and said ventricular basal electrode and electrically connected to said second middle electrode terminal; and; a pulse generator connected to said lead connector and configured to generate pacing pulses; and a controller connected to said pulse generator and configured to control said pulse generator to deliver a pacing pulse to said first terminal followed by a pacing pulse to said second electrode terminal, followed by a pacing pulse to said third terminal and followed by a pacing pulse to said fourth terminal during a cardiac cycle.