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Integrated multi-device cardiac resynchronization therapy using p-wave-to-pace timing

A heart and pacing technology, used in therapy, cardiac stimulators, cardiac defibrillators, etc., to solve problems such as difficulty in atrial event detection

Active Publication Date: 2021-08-17
CARDIAC PACEMAKERS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Among other things, the inventors have recognized that the problem to be solved is that, for systems using one or more ventricular LCP devices, the absence of intracardiac leads makes detection of atrial events for CRT purposes potentially difficult

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  • Integrated multi-device cardiac resynchronization therapy using p-wave-to-pace timing
  • Integrated multi-device cardiac resynchronization therapy using p-wave-to-pace timing
  • Integrated multi-device cardiac resynchronization therapy using p-wave-to-pace timing

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Embodiment Construction

[0058] The following description should be read with reference to the accompanying figures. The description and drawings, which are not necessarily to scale, depict illustrative embodiments and are not intended to limit the scope of the present disclosure.

[0059] figure 1 Illustrated is a patient 10 having a first implanted medical device of a leadless pacemaker (LCP) 14 shown implanted in a left ventricle inside a heart 12 for purposes of illustration. LCP 14 may be implanted in other chambers, such as the right ventricle or atrium, and more than one LCP may be provided.

[0060] There is also a second medical device in the form of a subcutaneous implantable defibrillator (SICD) having a left axillary canister 16 and leads 18 . An illustrative lead 18 is shown having a defibrillation coil 22 and sensing electrodes 24 , 26 located at distal and proximal ends of the coil 22 . If desired, lead 18 may optionally include bifurcations 28 to provide an additional set of sensing...

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Abstract

Methods, systems and devices for delivering cardiac resynchronization therapy (CRT) to patients using a leadless cardiac pacemaker (LCP) and an extracardiac device (ED). The LCP is configured to deliver pacing therapy at pacing intervals. Illustratively, the ED may be configured to analyze a cardiac cycle including the portion preceding the delivery of pacing therapy in one or more cardiac cycles and determine the interval from the P wave to the pacing therapy in one or more cardiac cycles is within the expected range. In an example, the ED communicates with the LCP to adjust the pacing interval if the P-wave to pacing interval is outside a desired range.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit and priority of US Provisional Patent Application Serial No. 62 / 378,880, filed August 24, 2016, the disclosure of which is incorporated herein by reference. Background technique [0003] Cardiac resynchronization therapy (CRT) alters the electrical activation and contraction of the heart chambers to improve pumping efficiency. Benefits can include increased exercise capacity and reduced hospitalization and mortality rates. More specifically, CRT devices operate by affecting the timing of the contraction of one or more heart chambers relative to one or more other heart chambers. For example, the contraction of one or more ventricles may be timed relative to the contraction of the atria, or the contraction of the left and right ventricles may be timed relative to each other. [0004] "Fusion" beats occur when multiple activation signals simultaneously affect the same cardiac tissue. F...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/349A61N1/372A61N1/375A61N1/39A61N1/365A61N1/37
CPCA61N1/37264A61N1/365A61N1/3702A61N1/39622A61B5/4836A61N1/37288A61N1/3756A61B5/287A61B5/349A61B5/353A61N1/37512A61N1/36507A61N1/3925
Inventor 斯蒂芬·J·哈恩克日什托夫·Z·西尔耶科艾米·珍·布里斯本基思·R·迈莱
Owner CARDIAC PACEMAKERS INC