Balloon dilatation catheter and preparation method thereof

Abstract

The invention discloses a balloon dilatation catheter and a preparation method thereof. The balloon dilatation catheter comprises a catheter base, a hypotube connected to the catheter base, an outer tube connected to the end part of the hypotube, an inner tube arranged in the outer tube, a balloon connected to the outer tube and a tip part connected to the balloon, and guide wire openings are formed in the outer tube and the inner tube; the balloon dilatation catheter is characterized in that a reinforcing layer is arranged on the inner wall of the outer tube and / or the outer wall of the inner tube; and the size of an outer circle of the reinforcing layer is gradually decreased from the hypotube to the tip part along the inner wall of the outer tube and / or the outer wall of the inner tube. The balloon dilatation catheter has guide wire opening structure design of a traditional balloon dilatation catheter of a quick exchange structure, a guide wire penetrates into the far end of the catheter and penetrates out of the guide wire opening in the side wall, and a guide wire cavity is relatively short, so that the advantage of operation by a single person is kept; and the reinforcing layer is additionally arranged in the outer tube, so that the strength and toughness of a far-end assembly of the balloon dilatation catheter are improved, and the pushing force transmission efficiency is improved.

Description

technical field [0001] The patent of the present invention relates to surgical operation instruments in the medical field, especially a novel balloon dilatation catheter for interventional therapy and its preparation method. Background technique [0002] Interventional medicine is a new interdisciplinary subject that integrates imaging diagnosis and clinical treatment. Under the guidance of medical imaging equipment, with the help of instrument operation, the diagnosis and treatment of diseases are completed with minimally invasive technology. In recent years, the country has vigorously advocated and popularized interventional therapy, aiming at eliminating patients' pain, curing patients' diseases, and restoring patients to health with the best curative effect, minimal trauma, and lowest cost, while maintaining the normal structure and function of the human body. [0003] As one of the medical devices for interventional therapy, the balloon dilatation catheter can be used ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems in the prior art, the purpose of the present invention is to provide a new structure, a balloon dilation catheter with a strong ability to pass through the lesion, and at the same time provide a preparation method for the balloon dilation catheter to solve the problem of guide wire Weak ability to pass through the lesion, balloon wall adhesion, discounted distal components

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