Tilt-Inflatable Balloon Catheters and Bases for Balloons

Abstract

The object of the present invention is to provide an obliquely inflatable balloon catheter and a base for the balloon. Even in a curved blood vessel, the central axis of the blood vessel and the central axis of the catheter body will not be staggered, and the balloon can be positioned relative to the main body. The hose expands obliquely in an oblique manner, and does not cause the contact area with the blood vessel to become smaller or cause wrinkles on the balloon in the contracted state, so it is difficult to slip, and it can also improve the relationship between the blood vessel wall and the balloon. The tight fit can prevent the leakage of blood. The balloon catheter of the present invention is provided with a balloon base (5) at the distal end of a tubular catheter body (2) having a predetermined length. The balloon base (5) has a cylindrical base (15) having a diameter larger than the outer diameter of the catheter main body, and an outer joint with the catheter main body is formed over the entire length of the base so that both ends are open. A lumen (6) with approximately equal diameter. The central axis of the lumen is inclined at a predetermined angle with respect to the central axis of the base, which is concentric with the central axis of the catheter body, and the outer peripheral surface is formed parallel to the central axis of the base. A balloon (3) is provided on the outer peripheral surface of the parallel base, and is inflated obliquely with respect to the central axis of the catheter body (2) during inflation.

Description

technical field [0001] The present invention relates to an oblique inflatable balloon catheter and a base for the balloon. More specifically, it mainly relates to the following balloon catheter and the base for mounting the balloon. In this method, the balloon provided at the distal end of the catheter body can be obliquely inflated even in a curved blood vessel, so that the blood transfusion flow does not directly collide with the blood vessel wall, and the generation of wrinkles can be suppressed in the deflated state of the balloon. Background technique [0002] Generally, the balloon installed on the balloon catheter expands concentrically with respect to the main body of the catheter. Therefore, in the case of a linear blood vessel, the balloon is located at a right angle to the blood vessel, so the indwelling stability is good, and the lumen of the catheter faces the center of the blood vessel relative to the blood vessel, so smooth blood or fluid transfusion can be pe...

AI Technical Summary

Problems solved by technology

[0007] However, this balloon 175 is formed by shaping the above-mentioned structure in advance with respect to the catheter body, so wrinkles are generated on the balloon in a deflated state, and wrinkles generated by the balloon appear on the surface of the catheter body. Concave and convex, and cannot adhere to the surface

Therefore, if the above-mentioned balloon catheter having unevenness formed on the surface due to wrinkles is assumed to be inserted into a blood vessel for the above-mentioned large-volume administration system, there is a risk of damage to the inner wall of the blood vessel due to the unevenness caused by the wrinkles of the balloon.

In addition, similarly to the above-mentioned conventionally known balloon, this problem cannot be solved at the point of being easy to slip.

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