System for treating arrhythmia by adopting pulsed electric field ablation technology

Abstract

The invention provides a system for treating arrhythmia by adopting a pulsed electric field ablation technology. The system comprises a voltage pulse system console, a pace-making and ECG unit and anablation catheter. The voltage pulse system console comprises an electrical pulse generator, a controller, a human machine interface and a converter. The pace-making and ECG unit comprises an ECG recorder, a pace-making catheter, a cardiac stimulator and a mapping catheter, and pace-making electric signals are synchronously transmitted to the voltage pulse system console. The ablation catheter isconnected to the system console through the converter, delivers a voltage pulse waveform within the refractory period of the cardiac cycle based on a pacing signal, and delivers pulsed electric fieldenergy to the ablated tissue through electrodes on the ablation catheter. The ablation catheter comprises a spline basket, an annular catheter entering the pulmonary vein is further arranged at the far end of the spline basket, and large-area irreversible injuries which are locally, linearly, annularly or evenly distributed can be formed, so that the purpose of treating arrhythmia diseases such asatrial repair, supraventricular tachycardia and atrial fibrillation is achieved.

Description

technical field [0001] The invention belongs to the field of medical equipment, and relates to a system for treating arrhythmia by adopting pulsed electric field ablation technology, in particular to a multipolar irreversible electroporation ablation catheter which can be used for arrhythmia treatment. Background technique [0002] Cardiac ablation has undergone a great deal of innovation and rapid development since it was first performed in 1969. Ablation was first used in patients with supraventricular tachycardia with accessory pathways and WWD syndrome, and today, ablation is commonly used to treat atrial flutter, atrial fibrillation, and ventricular arrhythmias. [0003] The goal of ablation is to destroy the underlying arrhythmic tissue and create a transmural and continuous permanent lesion. Percutaneous catheter ablation of pulmonary vein (PV) isolation in atrial tissue using radiofrequency ablation (RFA) and hypothermia has become a widely accepted procedure for th...

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Problems solved by technology

However, like RF, hypothermic ablation causes complications, including esophageal fi

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