Spatial bent spiral multi-ring pulmonary vein ablation catheter

Abstract

The invention discloses a spatial bent spiral multi-ring pulmonary vein ablation catheter. The technical problem to be solved is to improve the adaptability of a pulmonary vein ablation catheter. According to the pulmonary vein ablation catheter, a far end of the double-hole tube is connected with a spiral multi-ring part, the spiral multi-ring part is tubular and is of a disc-shaped concentric multi-ring shape or a shape formed by connecting at least two open rings with opposite bending directions of the ring and the adjacent ring in the same plane in a free state, and a formed plane is vertical or approximately vertical to the axis of the pipe body and the double-hole pipe and is straight or approximately straight after being stretched; and ring electrodes are nested or embedded outside the tubular spiral multi-ring part at intervals. Compared with the prior art, the pulmonary vein ablation catheter has the advantages that the pulmonary vein ablation catheter has good adaptability to different pulmonary vein openings and other cardiac muscle tissues, the ring electrodes are tightly attached to a pulmonary vein or other cardiac muscle tissues, electrophysiological signal collection is stable, the operation is simple and convenient, the number of use of catheters is reduced, an operation can be safer and faster, the operation efficiency is increased, and the burden of a patient is reduced.

Description

Technical field [0001] The present invention relates to a medical surgical instrument, particularly a pulmonary venous radio frequency merged conduit. Background technique [0002] Atrialfibrillation is the most common rapid restriction of rapid residential arrhythmia. The electrical activity from myocardial cells leads to the patient's loss of normal sinus impulse, so that the auxiliary shrinkage is caused by auxiliary pump function. Lost. After the atrial fibrillation, he will not only increase with age, will also increase the incidence of stroke. When the patient has other cardiovascular disease, it will increase the patient's mortality. [0003] With the development of intra-heart electrophysiology, people have begun to recognize partial atrial fibrillation from the venous muscle sleeves. As early as 1966, the researchers found that there were strip-shaped myocardia in pulmonary veins, and then these myocardies were found in 1981, Haissaguerre, etc., believe that pulmonary ve...

AI Technical Summary

Problems solved by technology

The structure of the existing pulmonary vein ablation catheter is mainly a straight catheter and a single-ring catheter. The catheter with this structure has a small ablation range and requires several operations. It has strong limitations and cannot be applied to multiple parts or structural problems make the operation inconvenient. lack of

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