Conical vein stent

Abstract

The invention provides a conical vein stent, and belongs to the field of vascular stents. The conical vein stent comprises radial supporting bodies and a plurality of second connecting ribs, and eachradial supporting body comprises two annular radial supporting ribs and a plurality of first connecting ribs; the radial supporting ribs are wavy and comprise a plurality of inflection points, and thenumber of the inflection points is equal to that of the first connecting ribs; and the number of the inflection points of the every two radial supporting ribs is equal, the inflection points on the adjacent sides of the every two radial supporting ribs are connected through the corresponding first connecting ribs correspondingly, so that each radial supporting body comprises a plurality of hexagonal hollowed-out holes. The inflection points on the adjacent sides of the every two adjacent radial supporting bodies are connected through the corresponding second connecting ribs correspondingly. The radial sizes of the multiple radial supporting bodies are gradually decreased in the taper direction of the conical vein stent. When placed in a vein blood vessel with a certain difference in vessel diameters at the two ends, the conical vein stent can well adapt to the shape of the lesion blood vessel; and thus strong supporting force is provided for different parts of the vein blood vessel, and the vein blood vessel is effectively supported.

Description

technical field [0001] The invention relates to the field of vascular stents, in particular to a tapered vein stent. Background technique [0002] Stents are often used in minimally invasive interventions and surgical operations, such as vascular stents and intestinal stents that provide support, as well as artificial bone stents and artificial organ stents that serve as nutrient carriers and provide a certain size structure. [0003] Existing vascular stents are designed based on arterial vessels, and generally adopt a configuration with the same diameter at both ends, especially unable to satisfy long-segment venous lesions with large differences in diameter at both ends. Contents of the invention [0004] The purpose of the present invention is to provide a tapered vein stent, which can be applied to long veins with large differences in diameter at both ends. [0005] The present invention is achieved like this: [0006] A tapered vein stent comprising: [0007] A pl...

AI Technical Summary

Problems solved by technology

[0003] Existing vascular stents are designed based on arterial vessels, and usually adopt a configuration with the same diameter at both ends, especially for long-segment venous lesions with large differences in diameter at both ends.

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