A set of forward and reverse guide wire magnetic kissing system for coronary artery occlusion intervention

Abstract

A set of forward and reverse guide wire magnetic kissing system for coronary artery occlusion intervention, including microcatheter for coordinating with forward guide wire and reverse guide wire for reverse technique; the braided winding of the head end of microcatheter and part of the rod The wire layer is made of permanent magnetic material or material absorbed by the reverse guide wire; the guide wire is made by adding permanent magnetic material or metal material that can be absorbed by the microcatheter; On the basis of the shape and outer coating of the wire and microcatheter, by improving the material of the microcatheter used to cooperate with the forward guide wire and the material of the reverse guide wire used in the reverse technique, the reverse guide wire can be moved in the forward microcatheter during the pushing process. The magnetic adsorption of the catheter gradually moves closer to its position, which reduces the risk of the reverse guide wire penetrating into the subendothelium of the blood vessel or even causing blood vessel perforation during the traditional surgical operation, improves the success rate of the guide wire reverse kissing and the safety of the operation, and greatly reduces It reduces the difficulty of operation, significantly shortens the operation time, and reduces the pain of patients.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, and in particular relates to a set of forward and reverse guide wire magnetic kissing systems for coronary artery occlusion intervention. Background technique [0002] The management of chronic total occlusion of coronary artery is a common clinical problem. In clinical interventional therapy, forward guide wire combined with reverse guide wire technology is often used for interventional recanalization. The key step is to kiss the forward and reverse guide wires so that the reverse guide wire enters the forward catheter. Due to the inhomogeneous composition and texture of atherosclerotic plaques, combined calcification, and long occlusion segments, the retrograde guide wire and the forward guide wire are often in different spatial planes when they reach the overlapped vessel segment during the actual operation, making it difficult to kiss each other. The reverse guide wire also has the...

AI Technical Summary

Problems solved by technology

Due to the inhomogeneous composition and texture of atherosclerotic plaques, combined calcification, and long occlusion segments, the retrograde guide wire and the forward guide wire are often in different spatial planes when they reach the overlapped vessel segment during the actual operation, making it difficult to kiss each other. The reverse guide wire also has the risk of penetrating into the subendothelium of the blood vessel and even causing blood vessel perforation during the pushing process

Therefore, the operator needs to spend a lot of time in the process of kissing the reverse guide wire, the forward guide wire and the microcatheter, which not only increases the difficulty of the operation, but also increases the risk of the patient's pain

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