Balloon electrode pulse electrophysiological ablation catheter

Abstract

The invention relates to a balloon electrode pulse electrophysiology ablation catheter which comprises an inner balloon and an outer balloon, a flexible electrode is adhered to the inner balloon, the outer balloon sleeves the inner balloon adhered with the flexible electrode, the flexible electrode is coated with a wire, and only an electrode slice of the flexible electrode is exposed outside and is attached to human tissue; the far end of the catheter body is connected with a balloon with a flexible electrode, the near end of the catheter body is connected with a handle, and the catheter body is provided with a wire connected with the flexible electrode. The handle is connected with an external pulse energy source and the fluid generating device, and the handle is provided with a button which can control release of pulse energy and expansion of the electrode balloon; the flexible electrode is arranged on the balloon, the balloon can be more effectively attached to the pulmonary vein, non-thermal selectable pulse energy is adopted, the ablation efficiency is greatly improved, and damage to other tissue is reduced.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a balloon electrode pulse electrophysiological ablation catheter. Background technique [0002] Atrial fibrillation (AF; atrial fibrillation) is one of the most common clinical arrhythmias. At present, radiofrequency ablation and cryoablation are the main methods for the clinical treatment of atrial fibrillation and arrhythmia. Treatment of cardiac arrhythmias depends primarily on the quality and effectiveness of one or more lesions created during surgery that delineate the path of the abnormality and interfere with or isolate the conduction of abnormal electrical signals within the myocardial tissue. During treatment, the selected ablation energy is applied to the arrhythmia-causing tissue cells without affecting the surrounding organs or tissues. [0003] Radiofrequency (RF) energy and cryogenic energy can meet the above requirements. Radiofrequency ablation is usually a point-...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem of damage to non-target tissue cells and long operation time in the existing ablation technology, and provide a balloon electrode pulse electrophysiological ablation catheter to apply pulse energy to target tissue cells more accurately

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