Myocardium ablation device

Abstract

The invention relates to a myocardium ablation device capable of ablating cardiac muscle tissue point by point. The myocardium ablation device comprises a sleeve, an inner core, a fornices and a negative pressure suction pipeline. A first hollow pipeline is formed inside the sleeve, and the negative pressure suction pipeline is embedded on the side wall of the sleeve; the far side of the inner core is provided with the tip, and a liquid injection interface is arranged on the near side; the inner core is provided with a body, the body is provided with a second hollow pipeline, the body is configured to move inside the first hollow pipeline, and the second hollow pipeline is communicated with the liquid injection interface; one or more negative pressure suction cups are arranged on the innerside wall of the fornices, and the interior of the side wall is provided with a third hollow pipeline, and the third hollow pipeline is communicated with the negative pressure suction pipeline at thenear end of the fornices; the near side of the negative pressure suction pipeline is provided with a negative pressure interface for being connected with a vacuum generation device. The myocardium ablation device can be used for mapping cardiacelectrical activity.

Description

technical field [0001] The present invention relates to a surgical instrument for treating arrhythmia, in particular to a myocardial ablation device for ablation of myocardial tissue, preferably, the myocardial ablation device can also map cardiac electrical activity. Background technique [0002] Arrhythmia is a series of diseases in which the heart loses its inherent rhythm due to various reasons, and its incidence rate is high and it is extremely harmful to health. For example, the most common persistent arrhythmia in clinical practice is called atrial fibrillation (abbreviated as atrial fibrillation). It is caused by various pathogenic factors that lead to abnormal changes in the electrophysiological properties of atrial myocytes, causing rapid and irregular contractions of the atria and ventricles. As a result, patients will have symptoms such as palpitations, shortness of breath, and fatigue, and increase the incidence of adverse events such as heart failure, thromboem...

AI Technical Summary

Problems solved by technology

[0004] However, the bipolar radiofrequency ablation pen currently used for linear ablation in atrial fibrillation surgery is attached to the epicardium to release radiofrequency energy, and it is difficult to form transmural damage to thicker myocardial tissue, especially for hypertrophic In patients with cardiomyopathy, it is more difficult for these radiofrequency ablation pens to cause damage deep in the ventricular wall, so some atrial fibrillation and most ventricular arrhythmias are less effective for treatment

Moreover, the existing bipolar radiofrequency ablation pen cannot map whether there is still electrical activity or conduction at the ablation site after the ablation is completed, so that the surgical effect cannot be verified during the operation, leaving certain hidden dangers for the recurrence of arrhythmia

In addition, the bipolar radiofrequency ablation pens currently in use are all imported, with complex structures, high cost, and a series of supporting equipment such as radiofrequency energy generators, which makes the surgical treatment of atrial fibrillation expensive, and makes it impossible for some hospitals to carry out this procedure. treat

Images