Aneurysm blocking device

A occlusion device and aneurysm technology, applied in the field of aneurysm treatment, can solve the problem of stable occlusion of bifurcation aneurysms difficult to occlude device

Pending Publication Date: 2021-07-06
SHANGHAI NOWYON MEDICAL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide an aneurysm occlusion device, thereby solvi

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with specific embodiments. It should be understood that the following examples are only used to illustrate the present invention but not to limit the scope of the present invention.

[0040] In order to solve the problem that bifurcated aneurysms are difficult to be stably occluded by the occluding device, the present invention provides an aneurysm occluding device, which can provide effective support at the neck of the aneurysm and act like a plug. Moreover, it occupies a small space in the parent artery, which reduces the possibility of arterial thrombosis, and at the same time, the tension of the aneurysm occlusion device in the aneurysm cavity is relatively reasonable, which reduces the risk of weak and fragile aneurysms.

[0041] In order to better achieve stable occlusion of narrow-necked aneurysms and wide-necked aneurysms, the invention provides two types of aneurysms according to the size rati...

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Abstract

The invention provides an aneurysm blocking device which is formed by an elastic net-shaped body, the near end of the elastic net-shaped body is folded inwards in the radial direction to be connected with a near-end marking part, the far end of the elastic net-shaped body is folded inwards in the radial direction to be connected with a far-end marking part and folded reversely, the far end of the elastic net-shaped body where the far-end marking part is located extends into the elastic net-shaped body, a double-layer net structure formed through reverse folding forms an expansion part elastic net-shaped body, a single-layer net structure which is not reversely folded forms a neck elastic net-shaped body, and in the self-expansion state, the radial size of the expansion part elastic net-shaped body is gradually increased from the near end to the far end or is increased firstly and then reduced. According to the blocking device capable of effectively treating the aneurysm, the problems that in the prior art, the blocking effect is poor, the operation cost is high, and the operation difficulty is large are solved, the possibility of arterial thrombosis can be reduced, and the risk that the aneurysm top is weak and prone to being broken is reduced.

Description

technical field [0001] The invention relates to the technical field of aneurysm treatment, in particular to an aneurysm occlusion device. Background technique [0002] Intracranial aneurysm refers to the localized swelling and expansion of the vessel wall of the artery due to the effect of acquired pathological factors or congenital malformation. The attack rate of intracranial aneurysms is extremely high, about 5%. The fatality rate of rupture and bleeding for the first time is 8% to 45%, the fatality rate is higher than 60% within one year, and the fatality rate is over 85% within 2 years. Therefore, the international community generally emphasizes the important clinical significance of early diagnosis and treatment of intracranial aneurysms to improve the survival rate and quality of life of patients. [0003] At present, there are two standardized treatment methods for cerebral aneurysm rupture and bleeding, namely craniotomy clipping and endovascular interventional em...

Claims

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Application Information

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IPC IPC(8): A61B17/12
CPCA61B17/12031A61B17/12113A61B17/12172A61B17/12177
Inventor 胡天宙张捷捷刘振全孙冰贾晶
Owner SHANGHAI NOWYON MEDICAL CO LTD
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