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Adaptive cardiac resynchronization therapy using a single multi-electrode coronary sinus lead

A single-way coronary sinus lead wire, heart technology, applied in the direction of treatment, electrodes, electrotherapy, etc., can solve problems such as tachyarrhythmia

Pending Publication Date: 2020-12-11
MEDTRONIC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, electrical impulses delivered to the myocardium during the repolarization phase at the end of the cardiac cycle are known to cause episodes of tachyarrhythmias

Method used

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  • Adaptive cardiac resynchronization therapy using a single multi-electrode coronary sinus lead
  • Adaptive cardiac resynchronization therapy using a single multi-electrode coronary sinus lead
  • Adaptive cardiac resynchronization therapy using a single multi-electrode coronary sinus lead

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Embodiment Construction

[0023] It will be apparent to those skilled in the art that elements or processes from one embodiment can be used in combination with elements or processes of other embodiments and that methods, devices and systems using combinations of features set forth herein Possible embodiments are not limited to the specific embodiments shown in the figures and / or described herein. Further, it will be appreciated that the embodiments described herein can include many elements that are not necessarily shown to scale.

[0024] In general, the present disclosure relates to methods of sensing activation of the right ventricle for use in timing delivery of cardiac resynchronization pacing therapy in implantable medical device systems that do not include a right ventricular lead positioned directly within the RV chamber. For example, a medical device system may include a housing or canister and a single lead electrically coupled to the housing and capable of providing left ventricular LV DDD p...

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Abstract

A method and implantable medical device system for delivering a cardiac pacing therapy that includes suspending delivery of the LV cardiac pacing therapy and sensing far-field cardiac signals via oneor more far-field sensing vectors formed between a plurality of electrodes positioned on a single-pass coronary sinus lead. Far-field signal features are determined in response to the sensed far-fieldcardiac signals, a first offset interval and a second offset interval are determined in response to the determined far-field signal features, and an AV delay of the LV cardiac pacing therapy is adjusted in response to the determined first offset interval and second offset interval. Delivery of the LV cardiac pacing therapy having the adjusted AV delay is subsequently resumed.

Description

technical field [0001] The present disclosure relates to cardiac pacing methods and systems, and, more particularly, to a method and apparatus for delivering cardiac pacing therapy in an implantable medical device system having only a single multi-electrode coronary sinus lead. Background technique [0002] The activity of a normal healthy heart involves the synchronized contraction of the heart's atria and ventricles. Blood is received into the atria, which contract, forcing blood into the ventricles. Subsequent contractions of the ventricles then cause blood to be pumped through the body and eventually return to the atria. Contraction of the chambers of the heart is caused by coordinated electrical activation of multiple parts of the myocardium. [0003] The heartbeat cycle begins with the generation of electrical impulses by fiber bundles located in the heart's sinoatrial node near the entrance to the superior vena cava in the upper part of the right atrium. This impul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N1/365A61N1/05A61N1/368A61B5/0402A61B5/366
CPCA61N1/056A61N1/36521A61N1/368A61N1/3682A61B5/318A61N1/37512A61B5/686A61B2562/0209A61N1/37211A61N2001/0585A61B5/287A61B5/341A61B5/366
Inventor A·桑贝拉什威利Y·曹J·吉尔伯格
Owner MEDTRONIC INC
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