Blood vessel implant

Abstract

The invention relates to a blood vessel implant. The blood vessel implant comprises an implant body, a first end and a second end, wherein the first end and the second end are located at the two axial ends of the implant body; at least one first end developing mark is arranged at the first end, and at least one second end developing mark is arranged at the second end; the implant body is formed by weaving at least two weaving wires in a staggered mode, and at least one weaving wire of the weaving wires has developing performance; each weaving wire comprises a core wire and a sleeve wrapping the core wire, wherein the sleeve is made of nickel-titanium alloy, the core wire is made of platinum, and the sectional area of the core wire accounts for 20%-35% of the total sectional area of the weaving wire; and the ratio of the identification degree of the first end developing mark to the identification degree of the implant body to the identification degree of the second end developing mark under X rays is 0.99: (0.32-0.66): 1.0, the relative density of the material of the blood vessel implant is 15-25, and the thickness of the blood vessel implant in the X ray direction is 0.015mm-0.2mm. Through the configuration, the developing performance of the two ends of the blood vessel implant under the X rays is superior to the developing performance of the middle section of the implant, and meanwhile various properties of the blood vessel implant can be ensured.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a blood vessel implant. Background technique [0002] Minimally invasive intervention is a treatment for vascular aneurysms, which usually involves delivering vascular implants, such as but not limited to stents, coils, aneurysm occlusion devices, etc., to the lesion in the blood vessel through a delivery device, and then , the delivery rod maintains the design structure of the implant while realizing the release of the vascular implant, so as to expand the blood vessel, seal the aneurysm and other therapeutic effects. [0003] Self-expanding braided stents are a form of vascular implants that are widely used due to their good delivery properties. In the prior art, self-expandable braided stents are visualized only by the developing structures at both ends of the stent and / or the developing wire interspersed in the stent, which is not conducive to judging the opening and...

AI Technical Summary

Problems solved by technology

In the prior art, self-expandable braided stents are visualized only by the developing structures at both ends of the stent and / or the developing wire interspersed in the stent, which is not conducive to judging the opening and adhering state of the stent in the curved blood vessel. Generally, it is difficult to judge the opening and adhering state of both ends of the stent, thus reducing the safety and accuracy of the operation and increasing the operation time

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