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Terminating pacemaker mediated tachycardia (PMT) in dual chamber leadless pacemaker system

A tachycardia, pacemaker technology

Pending Publication Date: 2021-08-13
先导者股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these existing PMT termination techniques cannot be directly applied to leadless dual-chamber pacemaker systems due to the additional complications associated with two separate body-independent atrial and ventricular pacing units

Method used

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  • Terminating pacemaker mediated tachycardia (PMT) in dual chamber leadless pacemaker system
  • Terminating pacemaker mediated tachycardia (PMT) in dual chamber leadless pacemaker system
  • Terminating pacemaker mediated tachycardia (PMT) in dual chamber leadless pacemaker system

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Embodiment Construction

[0028] Certain embodiments of the present technology relate to dual chamber leadless pacemaker systems and methods of use thereof that may be used to terminate pacemaker-interventional tachycardia (PMT). However, before providing additional details of specific embodiments of the present technology, reference will first be made to Figure 1A , 1B and 2 describe exemplary systems in which embodiments of the present technology may be used. More specifically, Figure 1A , 1Band 2 will be used to describe an exemplary cardiac pacing system in which pacing and sensing operations may be performed by multiple medical devices, which may include one or more leadless pacemakers (LP), An implantable cardioverter-defibrillator (ICD), such as a subcutaneous ICD, and / or a programmer that coordinates pacing and / or sensing operations reliably and safely.

[0029] Figure 1A Illustrated is system 100 implanted in heart 101 formed in accordance with certain embodiments herein. System 100 incl...

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Abstract

An implantable system including an atrial leadless pacemaker (aLP) and a ventricular leadless pacemaker (vLP), and methods for use therewith, are configured or used to terminate a pacemaker mediated tachycardia (PMT). One of the aLP or the vLP detects a PMT and informs the other one. The aLP initiates a PMT PA interval that is shorter than a PA interval that the aLP would otherwise use for atrial pacing if a PMT was not detected. The vLP initiates a PMT PV interval that is longer than the PMT PA interval. If an intrinsic atrial or ventricular event is detected before PMT PA interval or the PMT PV interval expires, then these intervals will be terminated, otherwise an atrial chamber will be paced if the PMT PA interval expires, and / or a ventricular chamber will be paced if the PMT PV interval expires. This should have the effect of terminating the PMT.

Description

technical field [0001] Embodiments described herein relate generally to dual chamber leadless pacemaker systems that can terminate pacemaker-interventional tachycardia (PMT) and methods of use thereof. Background technique [0002] Pacemaker-interventional tachycardia (PMT) (also known as infinite cyclic tachycardia or pacemaker reentrant tachycardia) occurs when the pacemaker system responds to the During ventricular pacing. PMT occurs when a ventricular event occurs when the connective tissue between the atria and ventricles can send retrograde electrical signals from ventricle to atrium. Conduction of the ventricular signal to the atrium provides a spurious electrical signal in the atria that is interpreted by the pacemaker system as a natural atrial event. The pacemaker system senses this spurious retrograde atrial signal and then paces the ventricles for a programmed atrioventricular (AV) time period (also known as the AV interval or AV delay) following the signal. T...

Claims

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Application Information

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IPC IPC(8): A61N1/372A61N1/362A61N1/368
CPCA61N1/37205A61N1/3622A61N1/3688A61N1/37217A61N1/37512A61N1/37288A61N1/3756
Inventor C.蒋M.G.菲什勒
Owner 先导者股份有限公司
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