Scott Mathis - Durango CO John K. Prentice - Durango CO John A. Schmidt - Durango CO William B. Rottenberg - Durango CO
Assignee:
Quetzal Biomedical, Inc. - Denver CO
International Classification:
A61N 118
US Classification:
607 9, 607123, 607148
Abstract:
An apparatus and method for treatment of congestive heart failure from the right side of the heart. An implantable cardiac stimulation system with a multi-electrode lead having three or more selectable electrodes, together with apparatus for identifying an optimal subset of electrodes, apparatus for shaping a propagating wave front, and apparatus for modifying the intrinsic ventricular cardiac activation sequence, or generating simultaneous or near simultaneous pacing pulses to the septum or right ventricular outflow tract during ventricular systole in order to improve left ventricular cardiac efficiency and reduce mitral regurgitation in patients with dilated cardiomyopathy. A three dimensional map of electrode placement may be calculated. A sub set of the available electrodes in the right side of the heart is selected for stimulation such that septal motion during systole is reduced or the mitral valve area is stiffened to reduce mitral regurgitation.
System And Method For Classification Of Cardiac Activity Using Multiple Sensing Locations
William Rottenberg - Durango CO, US Scott Mathis - Durango CO, US
International Classification:
A61N001/362
US Classification:
607/025000
Abstract:
In a cardiac system with a multi-electrode lead, the intrinsic activity at each electrode is sensed and used to generate a wavefront profile. The timing, relative and absolute duration of events within the profile and the location of the first electrode at which an event is sensed during a cardiac cycle are used to generate a signal indicative of the cardiac condition of the patient.
Multi-Electrode Apparatus And Method For Treatment Of Congestive Heart Failure
Scott Mathis - Durango CO, US John Prentice - Boulder CO, US John Schmidt - Leesburg VA, US William Rottenberg - Durango CO, US
Assignee:
QUETZAL BIOMEDICAL INC. - Boulder CO
International Classification:
A61N001/18
US Classification:
607/011000
Abstract:
An apparatus and method for treatment of congestive heart failure from the right side of the heart. An implantable cardiac stimulation system with a multi-electrode lead having three or more selectable electrodes, together with apparatus for identifying an optimal subset of electrodes, apparatus for shaping a propagating wave front, and apparatus for modifying the intrinsic ventricular cardiac activation sequence, or generating simultaneous or near simultaneous pacing pulses to the septum or right ventricular outflow tract during ventricular systole in order to improve left ventricular cardiac efficiency and reduce mitral regurgitation in patients with dilated cardiomyopathy. A three dimensional map of electrode placement may be calculated. A sub set of the available electrodes in the right side of the heart is selected for stimulation such that septal motion during systole is reduced or the mitral valve area is stiffened to reduce mitral regurgitation.
Cardiac Pacemaker With Loss Of Atrial Capture Mode Switching And Method
William ROTTENBERG - Durango CO, US Scott MATHIS - Durango CO, US
International Classification:
A61N 1/362 A61N 1/36
US Classification:
607014000
Abstract:
An apparatus and method for treatment of pacemaker mediated tachycardia. A pacemaker detects serially recurring pacemaker mediated tachycardia and alters the mode of stimulation to a non-atrial pacing mode. The pacemaker also alters the mode of stimulation to a non-atrial pacing mode whenever atrial loss of capture is indicated, for example by failure to detect any non-atrial loss-of-capture indicators, or whenever pacemaker mediated tachycardia occurs immediately following atrial stimulation.