Repair balloon catheter and preparation method thereof

Abstract

The invention is applicable to the field of medical technology and provides a repair balloon catheter and a preparation method thereof. The repair balloon catheter comprises a needle hub, a hypotube, a catheter group, a balloon, and a tip tube. The balloon is provided with a chitosan biological hose in a sleeved manner, the joint of the needle hub and the hypotube is sleeved with a stress relief rubber sleeve, the chitosan biological hose is provided with a gel layer externally, and the inner wall of the chitosan biological hose is provided with an anticoagulant coating. When the repair balloon catheter enters the blood vessels of the human body under operation of doctors or other operators and the balloon is inflated, the chitosan biological hose is attached to the inner walls of the blood vessels under the action of own adhesion and internal stress to repair torn wounds, the endangium can be repaired within 30 days, the chitosan biological hose can be degraded and absorbed completed in the blood vessels, and blood vessel protection and repair effect is achieved while thrombus and vascular restenosis are prevented.

Description

technical field [0001] The invention belongs to the field of medical technology, and in particular relates to a repairing balloon catheter and a preparation method thereof. Background technique [0002] In the first stage, it is more common for people to form a stenosis or occlusion somewhere in the blood vessel, which will cause blood and flow to become poor, causing thrombosis or blood vessel narrowing. Currently, the following therapeutic methods are widely practiced: a guide wire is inserted into a narrow or occluded site, and then the stenotic or occluded site is dilated by a prosthetic balloon catheter following the guide wire. [0003] Under normal circumstances, when the balloon dilation catheter is expanded, because the internal stress on the blood vessel is relatively small, when the balloon expands to a certain extent, the intima of the blood vessel is prone to tearing, which in turn leads to problems such as thrombosis and intravascular restenosis. In the prior ...

AI Technical Summary

Problems solved by technology

[0003] Under normal circumstances, when the balloon dilation catheter is expanded, because the internal stress on the blood vessel is relatively small, when the balloon expands to a certain extent, the intima of the blood vessel is prone to tearing, which will lead to problems such as thrombosis and intravascular restenosis.

In the prior art, drug balloons are mainly used to solve this problem, such as rapamycin and paclitaxel, but patients who use drug balloons need to take anti-dual antiplatelet drugs for a long time to prevent intravascular thrombosis. It is easy to cause damage to the liver and kidney, and is extremely harmful to human health

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