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US 11,697,025 B2Granted
Cardiac conduction system capture
AssigneeMedtronic, Inc.
InventorSubham Ghosh
Life of this patent
Estimating the term…
Abstract
Systems, methods, and devices are described herein for determining cardiac conduction system capture of ventricle from atrium (VfA) therapy. VfA therapy may be delivered at a plurality of different A-V delays while electrical activity of the patient is monitored. The electrical activity may then be utilized to determine whether the cardiac conduction system of the patient has been captured by the VfA therapy.
Claims24
A system comprising:
- electrode apparatus comprising a plurality of electrodes to monitor electrical activity from tissue of a patient;
- and
- computing apparatus comprising processing circuitry and coupled to the electrode apparatus and configured to:
- receive a patient's intrinsic A-V delay value;
- monitor electrical activity of the patient's heart using one or more electrodes of the plurality of electrodes during delivery of ventricle from atrium (VfA) pacing therapy at a plurality of diagnostic A-V delay values, wherein VfA pacing therapy comprises delivery of pacing therapy to at least the left ventricle of the patient's heart from one or more VfA electrodes implanted through the right atrial endocardium and central fibrous body of the patient's heart, and wherein each of the plurality of diagnostic A-V delay values are less than the patient's intrinsic A-V delay value;
- and
- determine whether the VfA pacing therapy has successfully captured the cardiac conduction system based on the monitored electrical activity during delivery of VfA pacing therapy at the plurality of diagnostic A-V delay values.
4 more elements
A method comprising:
- receiving a patient's intrinsic A-V delay value;
- monitoring electrical activity of the patient's heart using one or more electrodes of a plurality of electrodes during delivery of ventricle from atrium (VfA) pacing therapy at a plurality of diagnostic A-V delay values, wherein VfA pacing therapy comprises delivery of pacing therapy to at least the left ventricle of the patient's heart from one or more VfA electrodes implanted through the right atrial endocardium and central fibrous body of the patient's heart, and wherein each of the plurality of diagnostic A-V delay values are less than the patient's intrinsic A-V delay value;
- and
- determining whether the VfA pacing therapy has successfully captured the cardiac conduction system based on the monitored electrical activity during delivery of VfA pacing therapy at the plurality of diagnostic A-V delay values.
1 more element
An implantable medical device comprising:
- a plurality of electrodes comprising:
- a right atrial electrode positionable within the right atrium of a patient's heart to deliver cardiac therapy to, or sense electrical activity of, the right atrium of the patient's heart, and
- a tissue-piercing electrode implantable through the right atrial endocardium and central fibrous body of the patient's heart to deliver cardiac therapy to, or sense electrical activity of, the left ventricle of the patient's heart;
- a therapy delivery circuit operably coupled to the plurality of electrodes to deliver cardiac therapy to the patient's heart;
- a sensing circuit operably coupled to the plurality of electrodes to sense electrical activity of the patient's heart;
- and
- a controller comprising processing circuitry operably coupled to the therapy delivery circuit and the sensing circuit, the controller configured to:
- monitor a patient's intrinsic A-V delay value using the plurality of electrodes;
- deliver ventricle from atrium (VfA) pacing therapy using at least the tissue-piercing electrode at a plurality of diagnostic A-V delay values, wherein each of the plurality of diagnostic A-V delay values are less than the patient's intrinsic A-V delay value;
- monitor electrical activity of the patient's heart using one or more electrodes of the plurality of electrodes during delivery of VfA pacing therapy at the plurality of diagnostic A-V delay values;
- and
- determine whether the VfA pacing therapy has successfully captured the cardiac conduction system based on the monitored electrical activity during delivery of VfA pacing therapy at the plurality of diagnostic A-V delay values.
9 more elements
Dependencies are inferred from the claim text.