Compound netty stent

A technology of inner stent and support frame, which is applied in the field of medical devices, can solve the problems of unfavorable graft delivery, narrow diameter, impossibility, etc., and achieve the effect of ensuring long-term unobstructed and easy delivery
CN102551931AInactive Publication Date: 2012-07-11曲乐丰 +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
曲乐丰
Publication Date
2012-07-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a netty stent for endovascular treatment. An existing technical scheme for treating vascular dilation diseases by the aid of a netty stent includes that a plurality of netty metal stents are coaxially overlapped and metal thin wires are woven three-dimensionally, so that a three-dimensional netty stent is formed, the principle includes that the disorder state of blood in a dilated blood vessel cavity is changed by the netty stent, and lesions are promoted to be repaired by a natural blood coagulation mechanism. The technical scheme of the invention includes that on the basis of an existing vascular laminating film stent consisting of an elastic supporting frame and a laminating film, a flow limiting screen with a flexible three-dimensional structure is used for replacing the laminating film, and the supporting frame and the flow limiting screen are compounded internally and externally so as be connected integrally. The compound netty stent further can be manufactured into a separate combined type or integral branch stent. The compound netty stent has the advantages that the compound netty stent is easy in manufacture and flexible in implantation, and an anatomy channel of a lesion blood vessel can be recovered.
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Description

technical field

[0001] The invention relates to a medical device, more specifically, to a mesh support for intravascular treatment. Background technique

[0002] In recent years, with the continuous development of endovascular treatment technology, various types of stent grafts have been widely used. The main structure is a foldable channel composed of a metal support frame and an artificial vascular membrane covering its inner or outer wall. The treatment principle is to use the pipeline structure formed by the stent to isolate the dilated vascular disease and blood flow, so as to avoid the expansion and rupture of the diseased blood vessel and ensure the smooth flow of the blood vessel access. The use of the stent has achieved good results in isolating various aneurysms and arterial dissections to prevent the enlargement and rupture of the aneurysms and dissections. Its disadvantage is that when the shape or location of the lesion is not suitable for endovascular exclusio...

Claims

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