Method and system for detecting capture using a coronary vein electrode
First Claim
Patent Images
1. A body implantable system, comprising:
- a lead system comprising a coronary vein electrode and one or more ventricular or atrial electrodes, the lead system being adapted to position the coronary vein electrode adjacent multiple heart chambers;
a pacing pulse generator coupled to the lead system, the pacing pulse generator configured to deliver sequential stimulation signals during a cardiac cycle to a left and right ventricle or a left and right atrium of a patient'"'"'s heart via at least the one or more ventricular or atrial electrodes;
a detector coupled to the lead system, the detector comprising a coronary vein sense amplifier configured to receive, from a single sense vector including the coronary vein electrode, a cardiac signal sensed by the single sense vector including the coronary vein electrode following the stimulation signals; and
a control circuit coupled to the detector, the control circuit configured to use the cardiac signal to detect capture of the ventricles or atria;
wherein the control circuit is configured to differentiate between capture in multiple heart chambers and capture in a single heart chamber from the sequential stimulation signals delivered during the cardiac cycle using the cardiac signal sensed by the single sense vector including the coronary vein electrode without using a signal received from another sense vector to differentiate between capture in multiple heart chambers and capture in a single heart chamber.
0 Assignments
0 Petitions
Accused Products
Abstract
A method and device provide for determining capture in multiple chambers of a patient'"'"'s heart using an electrode inserted into a coronary vein of the patient'"'"'s heart. The coronary vein electrode is positioned adjacent to multiple heart chambers and is responsive to cardiac signals originating in the multiple chambers. The coronary vein electrode may be coupled to a single sense amplifier to detect the cardiac signals. Pace pulses may be applied to multiple heart chambers simultaneously or according to a phased timing sequence. Cardiac signals responsive to the pace pulses sensed using the coronary vein electrode may be used to verify capture in the multiple chambers of the heart.
18 Citations
18 Claims
-
1. A body implantable system, comprising:
-
a lead system comprising a coronary vein electrode and one or more ventricular or atrial electrodes, the lead system being adapted to position the coronary vein electrode adjacent multiple heart chambers; a pacing pulse generator coupled to the lead system, the pacing pulse generator configured to deliver sequential stimulation signals during a cardiac cycle to a left and right ventricle or a left and right atrium of a patient'"'"'s heart via at least the one or more ventricular or atrial electrodes; a detector coupled to the lead system, the detector comprising a coronary vein sense amplifier configured to receive, from a single sense vector including the coronary vein electrode, a cardiac signal sensed by the single sense vector including the coronary vein electrode following the stimulation signals; and a control circuit coupled to the detector, the control circuit configured to use the cardiac signal to detect capture of the ventricles or atria; wherein the control circuit is configured to differentiate between capture in multiple heart chambers and capture in a single heart chamber from the sequential stimulation signals delivered during the cardiac cycle using the cardiac signal sensed by the single sense vector including the coronary vein electrode without using a signal received from another sense vector to differentiate between capture in multiple heart chambers and capture in a single heart chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
Specification