a guiding catheter

Abstract

The invention discloses a guiding catheter, which comprises: an inner tube with one end being bendable and used for conveying instruments; an outer tube sleeved outside the inner tube and having one end being bendable; The end is fixedly connected; it is connected with the other end of the inner tube and the other end of the outer tube, and the inner tube is subjected to a driving device that pulls away from the bendable end of the outer tube along the axis direction relative to the outer tube. When using the guide catheter, start the driving device to make the inner tube receive a pulling force, and one end of the outer tube and the inner tube can be bent, and under the action of the pulling force, the outer tube will be tightened to drive the inner tube to bend at the same time. By adjusting the drive The tension of the device enables the guiding catheter to be adjustable in angle, which solves the process of constantly replacing the guiding catheter during the operation, shortens the operation time, and improves the efficiency. Changing the angle of the guiding catheter can ensure that the guiding catheter meets different angle requirements and improve the success rate of the operation. In addition, the bent end of the guide catheter is also 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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