Endoluminal stent

Abstract

The invention relates to a lumen stent comprising a first mesh grid pipe. The first mesh grid pipe comprises a plurality of wavelike rings, each wavelike ring comprises a plurality of wave crests suspending freely and a plurality of wave troughs suspending freely, the first mesh grid pipe also comprises at least one quadrangular connecting area, each vertex of the connecting area comprises at least one constrained wave crest or at least wave crest wave trough, and any two adjacent vertexes are connected through a fixed rod. Compared with a conventional lumen stent, the above lumen stent is advantaged in that any two adjacent wavelike rings are connected through one connecting area, the vertexes are less, the lumen stent is good in flexibility and high in degree of freedom in wave crest and wave trough areas which suspend freely, the lumen stent can be used in blood vessels in various shapes, and does not damage the blood vessels, and furthermore the lumen stent is safer and higher in reliability during the usage process.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a lumen support. Background technique [0002] Interventional endoluminal stents are mostly braided with nickel-titanium wire and applied to peripheral blood vessels. They usually have a braided mesh tube. The braided mesh tube includes multiple corrugated coils connected to each other, and each corrugated coil has several peaks and troughs arranged at intervals. Due to the small size of the luminal stent and the small diameter of the nickel-titanium wire, the luminal stent needs to be woven with a structurally stable pattern to achieve the purpose of controlling the shape of the luminal stent and ensuring the elongation of the luminal stent. [0003] At present, the wave coils of the endoluminal stent are usually braided in a way that the crests and troughs are all mutually restrained, which makes the degree of freedom of the endoluminal stent low, and it is impossible to make...

AI Technical Summary

Problems solved by technology

[0003] At present, the wave coils of the endoluminal stent are usually braided in a way that the crests and troughs are all mutually restrained, which makes the degree of freedom of the endoluminal stent low, and it is impossible to make large deformation or relative displacement to meet different use environments

And when the number of corrugated coils of the luminal stent is small, the overall flexibility of the luminal stent is not good due to the limitation of the low degree of freedom between the corrugated coils.

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