Patent ID: 7840266
Filing Date: 2010-11-23
Classification: A61N

Abstract:
1. An apparatus for delivering transvascular neural stimulation to a cardiac fat pad bounded by an inferior vena cava and a left atrium and myocardial stimulation to a left ventricle to reduce ventricular wall stress, the apparatus comprising: a main lead assembly having a proximal portion and a distal portion, the distal portion including a distal end of the main lead assembly, wherein the distal portion of the main lead assembly is adapted to be fed into a coronary sinus to place the distal end proximate to the left ventricle; a left ventricular electrode located on the distal end of the main lead assembly and adapted to be fed into the coronary sinus with the distal portion of the main lead assembly; a fat pad electrode adapted to be fed into the coronary sinus and disposed on the main lead assembly at a fixed distance from the distal end of the main lead assembly including the left ventricular electrode with both the left ventricular and fat pad electrodes being fixed on the main lead assembly, wherein the main lead assembly is sized such that the distance between the fat pad electrode and the distal end of the main lead assembly including the left ventricular electrode is such that the left ventricular electrode is configured to be located proximate to the left ventricle and the fat pad electrode is configured to be located in the coronary sinus at a position proximate parasympathetic ganglia located in the cardiac fat pad when the main lead assembly is implanted in the coronary sinus; and an implantable device connected to the proximal portion of the main lead, the device including a neural stimulation component adapted to use the fat pad electrode to deliver neural stimulation to stimulate the parasympathetic ganglia, a cardiac rhythm management component adapted to use the left ventricular electrode to deliver myocardial stimulation to the left ventricle, and a controller adapted to implement a programmed neural stimulation therapy to control the neural stimulation to the parasympathetic ganglia to reduce ventricular wall stress and to implement a programmed cardiac rhythm management therapy to control the myocardial stimulation to the left ventricle to reduce ventricular wall stress.