Double-balloon interventional catheter

Abstract

The invention discloses a double-balloon interventional catheter which comprises a large balloon, a small balloon, a catheter body and a guide wire. The center of the catheter is provided with a central cavity for accommodating and conducting a guide wire; two ends of the catheter are provided with a guide wire inlet and a guide wire outlet which are communicated with the central cavity; the periphery of the catheter is sequentially covered with a first inflation cavity and a second inflation cavity, the end, close to a guide wire inlet, of the first inflation cavity is communicated with a first inflation opening, the end, close to the guide wire inlet, of the second inflation cavity is communicated with a second inflation opening, and the first inflation cavity, the second inflation cavity and a center cavity of the guide wire are independent spaces. The small balloon is located at the end close to the guide wire outlet and communicated with the first inflation cavity. The large balloon is located on the rear portion of the small balloon and communicated with the second inflation cavity. The guide wire is guided into a focus area through the catheter. The operation of puncture and dilatation can be carried out through one-time intervention, the large balloon plays a role in positioning the catheter, the guide wire and the small balloon, it is ensured that the puncture and dilatation positions are accurately and rapidly found, and safety is improved.

Description

technical field [0001] The invention relates to a medical device, in particular to a double-balloon intervention catheter. Background technique [0002] Interventional therapy is to use percutaneous puncture to remove the intravascular lesions and restore the patency of the blood vessels. In the process of interventional therapy, a catheter is firstly used to introduce a guide wire into the blood vessel, and the lesion is pierced through the guide wire, and then a balloon catheter is used. Under the guidance of medical imaging equipment, the balloon catheter is inserted into the stenotic part of the blood vessel by percutaneous puncture technology, and the balloon is expanded and expanded under strict supervision, so that the stenotic part of the blood vessel is expanded. [0003] At present, the guide wire, catheter and balloon catheter are two independent devices. During treatment, puncture and dilation need to be intervened separately, which increases the complexity of th...

AI Technical Summary

Problems solved by technology

[0003] At present, the guide wire, catheter and balloon catheter are two independent devices. During treatment, puncture and dilation need to be performed separately, which increases the complexity of the operation and reduces the working efficiency. , it is difficult to control the direction and position of the guide wire or the balloon. If the position is not correct during puncture, it is easy to puncture the area of ​​the central lesion and cause internal bleeding on the vessel wall. Cannot effectively expand the lesion area, affecting the treatment process

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