Supraventricular stimulation to control ventricular rate
AssigneeMedtronic, Inc.
InventorsYong-Fu Xiao, John L. Sommer, Scott J. Brabec, Lepeng Zeng, Jon F. Urban
Life of this patent
Estimating the term…
Abstract
Various techniques for delivering atrial pacing and supraventricular stimulation to achieve a desired ventricular rate and/or cardiac output are described. One example method described includes delivering a pacing signal configured to cause an atrial depolarization to a heart of a patient, wherein the atrial depolarization results in an associated refractory period during the cardiac cycle, and delivering a signal to a supraventricular portion of the heart of the patient subsequent to the atrial refractory period and during a ventricular refractory period of the cardiac cycle.
Claims28
A method comprising:
- delivering a pacing signal configured to cause an atrial depolarization to a heart of a patient having intact A-V conduction, wherein the atrial depolarization results in an associated refractory period during a cardiac cycle;
- and delivering a signal to a supraventricular portion of the heart of the patient subsequent to the atrial refractory period and during a ventricular refractory period of the cardiac cycle.
A method comprising:
- delivering a pacing signal configured to cause an atrial depolarization to a heart of a patient, wherein the atrial depolarization results in an associated refractory period during a cardiac cycle;
- and delivering a signal to a supraventricular portion of the heart of the patient subsequent to the atrial refractory period and during a ventricular refractory period of the cardiac cycle;
- and
- further comprising detecting a ventricular depolarization of the cardiac cycle subsequent to the atrial depolarization, wherein the ventricular depolarization is associated with and precedes the ventricular refractory period, wherein delivering the signal to the supraventricular portion of the heart comprises delivering the signal to the supraventricular portion of the heart subsequent to detection of the ventricular depolarization.
A system comprising:
- a signal generator configured to deliver a pacing signal configured to cause an atrial depolarization to a heart of a patient, wherein the atrial depolarization results in an associated refractory period during a cardiac cycle, and deliver a signal to a supraventricular portion of the heart of the patient subsequent to the atrial refractory period and during a ventricular refractory period of the cardiac cycle;
- and a processor configured to control the signal generator to deliver the pacing signal and the signal to the supraventricular portion of the heart;
- and
- further comprising a sensing module configured to detect a ventricular depolarization of the cardiac cycle subsequent to the atrial depolarization, wherein the ventricular depolarization is associated with and precedes the ventricular refractory period, and wherein the signal generator delivers the signal to the supraventricular portion of the heart subsequent to detection of the ventricular depolarization.
A method comprising:
- delivering a pacing signal configured to cause an atrial depolarization to a heart of a patient having intact A-V conduction, wherein the atrial depolarization results in an associated refractory period during a cardiac cycle;
- and delivering a signal to a supraventricular portion of the heart of the patient subsequent to the atrial refractory period and during a ventricular refractory period of the cardiac cycle, wherein delivering the pacing signal comprises delivering the pacing signal at a pacing rate, wherein the pacing rate is selected based on a desired ventricular rate.
Dependencies are inferred from the claim text.