Coronary sinus space bend mapping electrode catheter

Abstract

The invention discloses a coronary sinus space bend mapping electrode catheter. In order to solve the technical problem that the operating difficulty is reduced, the coronary sinus space bend mappingelectrode catheter is provided with a catheter body, a handle device and a connector from the far end to the near end in sequence, wherein the catheter body is provided with an end electrode, a double-hole tube and a main catheter body starting from the far end in sequence, and the end electrode, the double-hole tube and the main catheter body are connected in sequence. The double-hole tube is made from block polyether amide resin or polyurethane or block polyamide or nylon, and a pull line steel wire is connected between the end electrode and the handle device. Compared with the prior art, the far end of the catheter body is bent into an L-shaped annular plane, and an angle is formed between the L-shaped annular plane and the catheter body so that the electrode at the far end of the catheter body can easily enter the orifice of the coronary sinus, the electrode is closely attached to the inner wall of the coronary sinus, and it is ensured that in the operating process, the electrode does not slide out of the orifice of the coronary sinus. Through computer three-dimensional cardiac electrophysiology mapping data, the chambers of the heart of a patient can be directly and quickly subjected to three-dimensional imaging, three-dimensional modeling is completed, the operating effectiveness and operability are greatly improved clinically, and the operating time is saved.

Description

technical field [0001] The invention relates to a medical operation instrument, in particular to an electrode catheter for cardiac electrophysiological mapping. Background technique [0002] Cardiac electrophysiological mapping of the coronary sinus and coronary vein plays a very important role. Many electrophysiological examinations require the placement of coronary sinus electrodes, such as the left epicardial bypass, ventricular premature beats of epicardial origin, and complex atrial fibrillation. Ablation is required in the coronary vein, and left ventricular leads for CRT for cardiac resynchronization therapy are also placed in the coronary vein. The traditional cardiac electrophysiological method is to obtain structural information in the human body through X-ray imaging or contrast imaging. This method increases the patient's exposure time to X-rays and increases the dose of contrast agent, which is likely to cause harm to the patient. The formed image is a two-dime...

AI Technical Summary

Problems solved by technology

Due to the complex structure of the coronary sinus, the curved shape of the coronary sinus mapping catheter in the prior art is a plane bend, which makes it difficult to enter the coronary sinus ostium, and the catheter electrode is not attached to the heart tissue unstable, and the collected electrophysiological signals are unstable. Increase the difficulty of heart surgery and prolong the operation time

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