A device for assisting the reverse guide wire to enter the forward guiding catheter in the cto reverse guide wire technique

Abstract

A device for assisting a reverse guide wire to enter a forward guiding catheter in a CTO reverse guide wire technology, comprising a push connecting rod, the tail end of the push connecting rod is provided with a push handle, and the head end of the push connecting rod is provided with a disc-shaped structure , the end of the push connecting rod is buried in the disc-shaped structure; the disc-shaped structure is provided with two holes for respectively connecting the two cavities, and the proximal ends of the two cavities are opened on the side of the push connecting rod; the two cavities include The forward-pushing track cavity and the auxiliary reverse guide wire enter the working cavity of the forward guiding catheter; the track hole communicates with the track cavity, the working hole communicates with the working cavity, and the disc structure, the track cavity and the working cavity constitute the core of the device. Work area. The invention is beneficial to shorten the operation time, ensure the success rate of the operation, and reduce the use of other instruments.

Description

technical field [0001] The invention relates to an auxiliary instrument for coronary artery interventional therapy, in particular to a device for assisting a reverse guide wire to enter a forward guiding catheter in CTO reverse guide wire technology. Background technique [0002] In the field of coronary intervention therapy, chronic total occlusion (CTO) disease is a common type of complex coronary artery disease. Among patients with coronary heart disease diagnosed by coronary angiography, 20%-40% have CTO lesions. Compared with non-occlusive lesions, CTO lesions have a lower success rate of intervention, more expensive equipment, higher radiation doses for doctors and patients, and more difficult surgical techniques. Therefore, they are known as the last bastion in the field of coronary intervention. [0003] In the past two decades, the success rate of CTO interventional therapy is low, most reports are between 60% and 80%, and the most common cause of failure is that t...

AI Technical Summary

Problems solved by technology

However, the operation of the retrograde guide wire into the forward guide catheter often encounters difficulties.

Sometimes it takes a long time and repeated attempts before it can be completed, or even give up the operation

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