Cardiac resynchronization therapy with VFA

By using tissue puncture electrodes and right atrial electrodes in implantable medical devices, combined with motion detectors, multi-chamber sensing and pacing are achieved, the problem of difficulty in treating cardiac conduction abnormalities is solved, and the normality and efficiency of heart rhythm are improved.

CN111902187BActive Publication Date: 2025-05-16MEDTRONIC INC
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Patent Information

Application Number
CN201980021207.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2018-03-23
Filing Date
2019-03-22
Publication Date
2025-05-16
Estimated Expiration
2039-11-13

AI Technical Summary

Technical Problem

Existing implantable medical devices are difficult to effectively treat abnormalities in cardiac conduction systems, especially those with AV asynchrony or tachycardia, and single-chamber devices cannot fully solve these problems.

Method used

Using implantable medical devices including multiple electrodes, the tissue puncture electrode passes from the Koch triangular region of the right atrium through the endocardial and central fiber bodies, and is implanted in the basal region and/or diaphragm region of the left ventricular myocardium for sensing and delivering cardiac treatment, and in combination with the right atrial electrode and motion detector, atrioventricular synchronous pacing and cardiac resynchronous pacing.

Benefits of technology

Through multi-chamber sensing and pacing functions, more normal heart rhythm and AV synchronization are restored, cardiac output efficiency is improved, and tachycardia-related problems are effectively treated.

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Abstract

VfA cardiac treatment uses an implantable medical device or system. The implantable medical device includes a tissue puncture electrode, which is implanted in the basal region and / or septal region of the left ventricular myocardium of the patient's heart through the right atrial endocardium and the central fiber body from the Koch triangle of the right atrium. The device may include a right atrial electrode, a right atrial motion detector, or both. The device may be completely implanted in the patient's heart, or one or more leads may be used to implant the electrode into the patient's heart. The device can be used to provide cardiac treatment, including single-chamber or multi-chamber pacing, atrioventricular synchronous pacing, asynchronous pacing, triggered pacing, cardiac resynchronization pacing, or tachycardia-related treatment. A separate medical device can be used to provide some functions for cardiac treatment, such as sensing, pacing, or electric shock therapy.
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