Vein vessel stent and delivery device thereof

A venous blood vessel and tubular technology, applied in the field of endovascular prosthesis, can solve the problems of stent secondary thrombosis, inapplicability, increase blood flow and conform to the shape of blood vessels, so as to achieve good wall-attachment performance and improve compliance performance

Pending Publication Date: 2019-01-18
北京美迪微科技有限责任公司
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a venous stent equipped with a delivery device to solve the problems in the prior art that it is not suitable for restoring venous blood flow, increasing blood flow and conforming to the shape of blood vessels, and easily forming secondary thrombus in the stent; And the problem that the bracket conveyor cannot be positioned accurately

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  • Vein vessel stent and delivery device thereof
  • Vein vessel stent and delivery device thereof
  • Vein vessel stent and delivery device thereof

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Embodiment Construction

[0042] Such as Figure 1-Figure 6 As shown, the present invention is equipped with a venous stent with a delivery device, which is characterized in that it consists of sequentially connected tubular proximal section 130, middle section 140 and distal section 150, the proximal section 130 and the distal section 150 is made of a metal-supported tubing with good biocompatibility. The middle section 140 is a helical structure formed by a Z-shaped corrugated metal wire 214. The two ends of the helical structure are connected to the proximal section 130 and the distal section 150 respectively. connected and made of the same material. The combined length range of the proximal section 130, the middle section 140 and the distal section 150 is between 5 mm and 300 mm.

[0043] The port 110 at the proximal end section 130 is an inclined surface with an inclined angle a=20-30°.

[0044] The overall shape of the proximal section 130, the middle section 140 and the distal section 150 is a...

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Abstract

A vein vessel stent and a delivery device thereof. The vein vessel stent is composed of a tubular proximal section, a middle section and a distal section connected in sequence. The proximal section and the distal section are made of a biocompatible metal supported pipe material. And the middle section is a helical structure formed by Z-shaped corrugated metal wires. And two ends of the helical structure are respectively connected with the proximal section and the distal section and are made of the same material. The conveyor comprises an outer sheath, a conveyor sheath, an inner sheath and a positioning guide wire, wherein a developing point is arranged at the top of the positioning guide wire. The stent has the advantages that different segmented structures have different flexibility. Andthe structure can conform to various forms of blood vessels and achieve better adhesion performance.

Description

technical field [0001] The present invention designs an endovascular prosthesis, specifically a venous stent, which is placed in the patient's iliac vein, subclavian vein, and central venous vessel, and is mainly used to treat patients with venous compression syndrome and venous thrombosis; The device is used to deliver the venous stent to the relevant blood vessel. Background technique [0002] Venous diseases are relatively common diseases in vascular surgery, especially deep vein thrombosis and central vein stenosis or occlusion in dialysis patients. If these two diseases are not treated in time, the thrombus will easily flow back to the heart, resulting in limb swelling or pulmonary embolism, etc. Serious consequences. A large reason for the formation of these two diseases is iliac vein compression syndrome (iliac vein compression syndrome, IVCS) and central vein stenosis and thrombosis. Currently, the incidence of iliac vein compression syndrome is as high as 20% to 34...

Claims

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Application Information

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IPC IPC(8): A61F2/88A61F2/954
CPCA61F2/88A61F2/954A61F2250/0098A61F2210/0004A61F2210/0014A61F2240/001
Inventor 王素萍
Owner 北京美迪微科技有限责任公司
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