Hypotrophic myocardium ablation system

Abstract

The invention relates to the field of medical instruments, in particular to a hypertrophic myocardium ablation system. Existing minimally invasive radio frequency ablation has various problems of difficulty in control of ablation range and depth, limited curative effect and the like. The invention provides a hypertrophic myocardial ablation system which comprises an ablation device and a console. The ablation device comprises a catheter, a handle and ablation electrodes; two ablation electrodes are provided and arranged in the far end of the catheter; the two ablation electrodes are respectively arranged at the ends of two electrode catheters; the two electrode catheters are hollow and penetrate through the catheter; a driving mechanism is arranged on the handle and can drive the electrode catheters to move, so that the ablation electrodes can stretch out of the far end of the catheter; the front portions of the two ablation electrodes are of a spiral shape; the front ends of the spiral shapes are tips; the spiral radius of the spiral shapes is gradually reduced from back to front; and the driving mechanism can drive the two ablation electrodes to carry out telescopic translation and rotating motion relative to the catheter. According to the invention, the pulse electric field energy can be deeply transferred into hypertrophy ventricular septal tissues to form partial and irreversible myocardial necrosis, and vascular nervous tissues cannot be affected.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a hypertrophic myocardial ablation system. Background technique [0002] The existing classic treatment methods for hypertrophic cardiomyopathy are general anesthesia thoracotomy or minimally invasive treatment. The minimally invasive method is to place a microcatheter into the large interventricular septal artery branch, and then inject absolute alcohol to artificially create interventricular septal myocardial infarction. The left ventricular outflow tract obstruction caused by contact with hypertrophic interventricular septum, the problem of this minimally invasive method is that it cannot be done without a suitable interventricular septal artery, the surgical operation is risky, and third-degree atrioventricular block and ventricular fibrillation are prone to occur malignant arrhythmia. Later, there was an improved radiofrequency energy ablation combined with minimally invasive...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved and the technical task proposed by the present invention are aimed at the problems of the existing minimally invasive radiofrequency ablation of the septal surface of the left ventricle that the ablation range and depth are difficult to control, the curative effect is limited, and it is easy to cause accidents such as malignant arrhythmia. Provide an ablation system for hypertrophic myocardium, the ablation system can penetrate the electrode into the myocardium, transmit the pulse electric field energy deeply into the hypertrophic interventricular septal tissue, and then form localized and irreversible myocardial necrosis without affecting the blood vessel and nerve tissue

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