Guide catheter

Abstract

The invention discloses a guide catheter. The guide catheter comprises an inner tube, an outer tube and a drive device, wherein one end of the inner tube can be bent and is used for conveying instruments, the inner tube is sleeved with the outer tube, one end of the outer tube can be bent, the bendable end of the outer tube and the bendable end of the inner tube are fixedly connected, and the drive device is connected with the other end of the inner tube and the other end of the outer tube, the drive device axially pulls the inner tube in the direction far away from the bendable end of the outer tube relative to the outer tube. When the guide catheter is used, the drive device is started, pulling force is exerted on the inner tube, one end of the outer tube and one end of the inner tube are both bendable, the outer tube is tensioned under the action of the pulling force, so that the inner tube is driven to be bent at the same time, and the angle of the guide catheter can be adjusted by adjusting the pulling force of the drive device. The problem that during surgery, the guide catheter is replaced repeatedly is solved, the surgery time is shortened, and efficiency is improved. Due to the fact that the angle of the guide catheter can be changed, it can be guaranteed that the guide catheter meets different angle requirements, and the success rate of surgery is increased. In addition, the bendable end of the guide catheter is rotatable.

Description

technical field [0001] The invention relates to the technical field of medical instruments, and more specifically, relates to a guiding catheter. Background technique [0002] In atrial fibrillation and other complex arrhythmia procedures, an introducer sheath is often used to direct the lead to the left and right pulmonary vein ostia or into the left atrium or elsewhere. However, due to the complex anatomy of the ostium of the left pulmonary vein, it is difficult to reach some parts of the guide sheath during the dissection process, and the sheaths currently used in clinical practice are all sheaths with fixed curvature, and it is necessary to constantly replace the guide sheath with different curved shapes In order to realize that the electrode catheter can reach different positions, this makes the operation time longer, and even the electrode catheter may not be able to reach the ideal state, resulting in a long operation time that cannot be completed. [0003] Therefore...

AI Technical Summary

Problems solved by technology

However, due to the complex anatomy of the ostium of the left pulmonary vein, it is difficult to reach some parts of the guide sheath during the dissection process, and the sheaths currently used in clinical practice are all sheaths with fixed curvature, and it is necessary to constantly replace the guide sheath with different curved shapes In order to realize that the electrode catheter can reach different positions, this makes the operation time longer, and even the electrode catheter may not be able to reach the ideal state, resulting in a long operation time and cannot be completed

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