Device for assisting retrograde wire in entering forward guide catheter in CTO retrograde wire technology

Abstract

The invention provides a device for assisting a retrograde wire in entering a forward guide catheter in the CTO retrograde wire technology. The device comprises a pushing connecting rod. A pushing handle is arranged at the tail end of the pushing connecting rod. A disc-shaped structure is arranged at the head end of the pushing connecting rod, and the end of the pushing connecting rod is hidden in the disc-shaped structure. The disc-shaped structure is provided with two holes for being connected with two cavity gaps, the near ends of the two cavity gaps are opened towards the side faces of the pushing connecting rod. The two cavity gaps comprise the forward pushing rail cavity gap and the working cavity gap for assisting the retrograde wire in entering the forward guide catheter. The rail hole is communicated with the rail cavity gap, the working hole is communicated with the working cavity gap, and a working region of the device is formed by the disc-shaped structure, the rail cavity gap and the working cavity gap. By the adoption of the device, operation time can be shortened, the operation success rate is guaranteed, and other instruments are reduced.

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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