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Vascular reconstructive support frame

A technique for remodeling blood vessels and tubular structures, which is applied in the direction of blood vessels, stents, and devices of human tubular structures. highly soft effect

Active Publication Date: 2011-03-30
MICROPORT NEUROTECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It has been confirmed from animal experiments and long-term clinical follow-up that this stent cannot effectively change the hemodynamics in the aneurysm, and its expanded stent has malapposition in the curved blood vessel, and the cavity is discounted

Method used

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Experimental program
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Effect test

Embodiment Construction

[0046] Different implementations according to the present invention will be described in detail below with reference to the accompanying drawings.

[0047] see Figure 1 to Figure 3 As shown, it shows a highly soft and flexible implanted device according to the present invention: vascular remodeling stent 10 . The vascular remodeling stent 10 shown in the figure is a network-like structure, which is formed by interlacing continuous silk chains 20 and has a plurality of mesh holes. The interweaving points of the silk chain 20 are also referred to as nodes of the mesh, and the nodes 30 of the mesh are movable or movable. Each strand 20 of the stent forms an angle β with the radial direction of the stent o , angle β o 15°-85°, preferably 30°-75°, more preferably 45°-60°, so as to provide sufficient radial / circumferential support.

[0048]According to the vessel reconstruction stent of the present invention, since the nodes 30 of the mesh are movable, the silk chains 20 are no...

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Abstract

The invention provides a vascular reconstructive support frame which is in a net-pipe-shaped structure and is provided with a plurality of net holes formed by interlacing a plurality of wire chains, wherein each wire chain is continuous, and nodes of the net holes are movable. The vascular reconstructive support frame of the invention has high softness and flexibility, can pass through curve and fine brain blood vessels to reach a target lesion, and can maintain the smooth blood vessel inner cavity along the curve blood vessels. In addition, the support frame has high-density net holes, and can obviously change the blood circulation in the aneurysm so that the blood can be resorted for forming blood clots and organic solids.

Description

technical field [0001] The present invention relates to an intravascular implantation device, in particular to a vascular remodeling stent capable of changing blood flow of a lesion, which can be implanted into a blood vessel to treat vascular dilation, deformation, deformity and other lesions, such as aneurysm and the like. Background technique [0002] The walls of blood vessels, especially arteries, may have local abnormal dilation or protrusions, which we call aneurysms. Due to local weakness caused by disease, injury or congenital factors, under the impact of long-term blood flow, the weak point of the arterial wall protrudes outwards and gradually expands to form a round, oval or prismatic cystic bulge. Aneurysm is a potentially life-threatening disease. Aneurysms continue to grow under the impact of blood flow. When the aneurysm ruptures due to increased blood pressure or other factors, rapid bleeding will occur. A ruptured aneurysm has extremely high Mortality. Ane...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/82A61F2/07A61F2/90
CPCA61F2/90A61F2250/0023A61F2002/823A61F2/07
Inventor 刘建民罗七一谢志永李雨王森李建军金巧蓉向勇刚
Owner MICROPORT NEUROTECH SHANGHAI
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