Intravascular stent with improved developing performance and method for improving developing performance of intravascular stent

Abstract

The invention provides a method for improving the developing performance of an intravascular stent and an intravascular stent with improved developing performance, and particularly provides an intracranial vessel stent. According to the invention, at least one layer of wire (2) made of a developing material is integrally wound on a stent wave rod (1) of the stent. By adopting the stent, accurate positioning under medical image equipment during and after surgery can be ensured, and the wound developing rod (2) is positioned at an unstressed or hardly-stressed position on the stent without influencing the expansion and stress distribution of the stent, so that the service life of the stent is not shortened, and the expected application effect of the stent is not influenced.

Description

technical field [0001] The invention relates to a blood vessel support with improved imaging performance, especially an intracranial blood vessel support. The invention also relates to a method for enhancing the imaging performance of the vascular stent. Background technique [0002] Cerebral vascular aneurysm and vascular artery stenosis are diseases with high mortality and high disability rate. Vascular stents are widely used as implants to treat such vascular diseases. Usually, the vascular stent is delivered to the lesion site through a delivery system, and then the stent is expanded to reconstruct the blood vessel, thereby treating the aneurysm or arterial stenosis. Therefore, endovascular interventional therapy with the help of vascular stents has gradually become the main method for the treatment of this vascular disease, which has the following advantages: less trauma, less complications, high safety, less pain for patients, easy to accept, short hospital stay and ...

AI Technical Summary

Problems solved by technology

However, this design has the following disadvantages: firstly, it can only display the far and near ends of the support, but cannot display the whole support, and if the process is unstable, it may also cause the developing tube or the developing material to fall off; in addition, the support of this design The outer diameter of the end part will be relatively large, which is not conducive to the assembly of the stent in the process, and affects the flexibility of the stent

However, in the prior art, the stents wound with developing wires can only be partially developed, but cannot be developed as a whole.

However, in the prior art, the development material is wrapped in the support rod, which is limited by the width of the support rod, so the capacity of the development material contained is limited, so that the development performance is limited.

Moreover, the way to enhance the development performance disclosed in the above-mentioned documents makes the manufacture of the support relatively complicated.

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