Balloon catheter

Abstract

The invention provides a balloon catheter. The balloon catheter comprises a catheter seat, a catheter body connected with the catheter seat and a balloon arranged on the surface of the far end of the catheter body; the catheter body comprises a catheter main body and a pointed catheter segment arranged at the end, far away from the catheter seat, of the catheter main body, and the outer diameter of the end, far away from the catheter main body, of the pointed catheter segment is smaller than that of the catheter main body; the catheter main body is provided with an inner cavity used for allowing a guide wire and a stent to pass through, the inner diameter of the pointed catheter segment is larger than the outer diameter of the guide wire, and the inner cavity wall of the pointed catheter segment is provided with a crack which can enable the pointed catheter segment to be cracked outwards in the radical direction. According to the balloon catheter, the catheter main body is designed to be of a thin-wall and large-cavity structure by increasing the inner diameter of the catheter main body, so that the stent can pass through the catheter main body, and then balloon pre-expanding and stent releasing can be completed only by adopting an instrument of the balloon catheter; instrument replacement is avoided, the operative process is simplified as much as possible, and therefore when hemadostenosis is treated, the operative difficulty is reduced, the operative success rate is increased, the operative cost is lowered to the utmost extent, and the burden of a patient is lowered.

Description

technical field [0001] The present invention relates to the technical field of interventional surgical instruments, and more specifically, relates to a balloon catheter. Background technique [0002] In the clinical treatment of vascular stenosis, sometimes the stenosis is pre-dilated with a balloon catheter, and then the balloon catheter is withdrawn to replace the microcatheter, and then the stent is delivered through the lumen of the microcatheter for subsequent treatment. , leading to greater difficulty in surgery, affecting the success rate of surgery. [0003] To sum up, how to reduce the difficulty of surgery in the treatment of vascular stenosis so as to improve the success rate of surgery is a technical problem to be solved urgently by those skilled in the art. Contents of the invention [0004] In view of this, the object of the present invention is to provide a balloon catheter, so as to reduce the difficulty of operation when treating blood vessel stenosis, so...

AI Technical Summary

Problems solved by technology

[0002] In the clinical treatment of vascular stenosis, sometimes the stenosis is pre-dilated with a balloon catheter, and then the balloon catheter is withdrawn to replace the microcatheter, and then the stent is delivered through the lumen of the microcatheter for subsequent treatment. , leading to greater difficulty in surgery and affecting the success rate of surgery

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