Reducing false messages and their effects in multi-chamber leadless pacemaker systems and other IMD systems

Abstract

Implantable medical devices (IMD) described herein and methods for use thereof described herein reduce the frequency of the IMD accepting false messages and / or reduce the adverse effects of the IMD accepting false messages. Such IMD may be a leadless pacemaker (LP) or an implantable cardiac defibrillator (ICD), but not limited thereto. Such embodiments may be used to assist multiple IMDs (e.g., multiple LPs) implanted within the same patient in maintaining synchronized operation, such as synchronized multi-chamber pacing.

Description

technical field [0001] Embodiments described herein relate generally to methods and systems for providing and improving communication between implantable medical devices, one or more of which may be leadless cardiac pacemakers. [0002] priority claim [0003] This application claims priority to U.S. Provisional Patent Application No. 62 / 907,396, filed September 27, 2019, and U.S. Nonprovisional Patent Application Nos. 17 / 022,774 and 17 / 022,994, filed September 16, 2020, which The application is hereby incorporated by reference in its entirety. Background technique [0004] Implantable medical devices and systems often depend on proper communication for proper operation. For example, in a dual-chamber leadless pacemaker system, implant-to-implant (i2i) communication is critical for proper synchronization and operation of the system. However, noise can cause one or more devices of such a system to falsely detect i2i messages and respond inappropriately to them. As a more ...

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Problems solved by technology

For another example, the atrial LP may falsely detect a message causing the atrial LP to pace the right atrium at a much higher rate than the ventricular LP paces the right ventricle, resulting in asynchronous pacing

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