Chemical ablation device used for curing atrial fibrillation

Abstract

The invention relates to a chemical ablation device used for curing atrial fibrillation, in particular to a chemical ablation device which is used for ablation of the pulmonary vein and epicardium through a chemical reagent. The chemical ablation device used for curing the atrial fibrillation comprises a tong handle, a push rod, a tong body, a tong head, a far-side tong nozzle, a near-side tong nozzle, a first pipeline, and a second pipeline. According to the chemical ablation device used for curing the atrial fibrillation, syringe needles on the far-side tong nozzle and on the near-side tong nozzle are used for infusing the chemical ablation reagent to the pulmonary vein and atrium tissue near the pulmonary vein, and then complete ablation of vestibules surrounding the pulmonary vein is obtained with the chemical ablation method, and manufacturing cost of the ablation device and matching equipment is reduced, and cost of an atrial fibrillation surgical operation is greatly reduced.

Description

technical field [0001] The present invention relates to a surgical instrument for treating atrial fibrillation, in particular to an ablation device for chemically ablating pulmonary veins and epicardium. Background technique [0002] Atrial fibrillation is the most common sustained cardiac arrhythmia in clinical practice. Atrial fibrillation is caused by various pathogenic factors that lead to abnormal changes in the electrophysiological properties of atrial myocytes, causing rapid and irregular contraction of the atrium and ventricle, causing patients to have symptoms such as palpitations, shortness of breath, fatigue, etc., and increasing the risk of heart failure, thrombosis, etc. The incidence of adverse events such as embolism and death. At present, the total prevalence rate of atrial fibrillation among Chinese is 0.77%. From this, it is estimated that the total number of atrial fibrillation patients in my country is close to 10 million, ranking first in the world. Mo...

AI Technical Summary

Problems solved by technology

[0004] However, the bipolar radiofrequency ablation forceps currently used in surgical operations can ablate the atrial tissue at the electrode contact position on the jaws after being clamped on the vestibule of the pulmonary veins, but between the opening of the jaws and the bottom of the jaws on both sides During the period, some atrial tissue could not contact the electrode, so that the continuous and complete ablation of the pulmonary vein vestibule could not be achieved, and there was a potential basis for the appearance of an electrical isolation "gap" after radiofrequency ablation and new atrial arrhythmias

In addition, the currently used bipolar radiofrequency ablation forceps are all imported, complex in structure, expensive to manufacture, and require a series of supporting equipment such as radiofrequency energy generators, making the surgical treatment of atrial fibrillation expensive

Images