Adaptive cardiac resynchronization therapy
AssigneeMedtronic, Inc.
InventorsRobert W. Stadler, Richard Cornelussen, Berthold Stegemann
Life of this patent
Estimating the term…
Abstract
In some examples, a system can be used for delivering cardiac resynchronization therapy (CRT). The system may include a pacing device configured to be implanted within a patient. The pacing device can include a plurality of electrodes, signal generation circuitry configured to deliver ventricular pacing via the plurality of electrodes, and a sensor configured to produce a signal that indicates mechanical activity of the heart. Processing circuitry can be configured to identify one or more features of a cardiac contraction within the signal, and determine whether the contraction was a fusion beat based on the one or more features.
Claims11
A system for delivering cardiac resynchronization therapy, the system comprising:
- a pacing device configured for implantation within a patient, the pacing device comprising:
- a plurality of electrodes;
- signal generation circuitry configured to deliver ventricular pacing via the plurality of electrodes;
- and
- a sensor configured to produce a signal that indicates mechanical activity of the heart;
- and
- processing circuitry configured to:
- identify one or more features of a cardiac contraction within the signal;
- determine whether the cardiac contraction is a fusion beat based on the one or more features;
- and
- control a timing interval for delivery of the ventricular pacing based on the determination;
- and
- wherein the system further comprises another implantable medical device, wherein the other implantable medical device is configured to:
- detect the at least one of an atrial event or a ventricular event;
- and
- transmit a signal to the pacing device to control the pacing device to deliver the ventricular pacing pulse in response to the detection of the at least one of the atrial event or the ventricular event.
A method for delivering cardiac resynchronization therapy by a pacing device, the method comprising, by processing circuitry of a medical device system comprising the pacing device:
- receiving a signal from a sensor of the pacing device, the signal indicating mechanical activity of a heart;
- identifying one or more features of a cardiac contraction within the signal;
- determining whether the cardiac contraction is a fusion beat based on the one or more features;
- and
- controlling a timing interval for delivery of ventricular pacing by the pacing device based on the determination;
- wherein the method further employs another implantable medical device and wherein the other implantable medical device detects at least one of an atrial event or a ventricular event and transmits a signal to the pacing device to control the pacing device to deliver the ventricular pacing pulse in response to the detection of the at least one of the atrial event or the ventricular event.
Dependencies are inferred from the claim text.