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Intracranial aneurysm neck sealing device

A technology of intracranial aneurysm and internal diameter, which is applied in the field of intracranial aneurysm neck sealing devices, can solve the problems of increasing the complexity of clinical treatment and different sensitivity, and achieve the effects of reducing size, preventing thrombus, and improving strength

Inactive Publication Date: 2018-11-23
黄清海
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

In addition, patients have different sensitivities to antiplatelet drugs, and clinical medication needs to be individualized, which also increases the complexity of clinical treatment

Method used

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  • Intracranial aneurysm neck sealing device
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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0028] Such as figure 1 with figure 2 As shown, an intracranial aneurysm neck sealing device includes a delivery tube 1, a hollow push rod 2 and a valve-like stent 3, which is punctured into a sheath in the femoral artery, and the delivery tube 1 is delivered to the proximal end of the intracranial aneurysm through the sheath and approaches the A stable support channel is formed at the aneurysm neck.

[0029] The inner diameter of the hollow push rod 2 is 0.012in~0.015in, the outer diameter of the hollow push rod 2 is 0.017in~0.020in, and the inner diameter of the delivery pipe 1 is 0.021in~0.027in.

[0030] The petal-shaped support 3 is made of platinum and nickel-titanium alloy, and includes a connecting ring 31 and a plurality of petal-shaped bodies 32. The petal-shaped bodies 32 are integrally arranged on the side wall of the connecting ring 31, which ...

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Abstract

The invention discloses an intracranial aneurysm neck sealing device. The device comprises a conveyer pipe, a hollow push rod and a valvular stent attached to the end of the hollow push rod; the valvular stent comprises a connecting ring and a plurality of elastic valvular bodies; the connecting ring is connected to the hollow push rod; the valvular bodies are arranged on the connecting ring at intervals in the circumferential direction; a release portion is disposed between the connecting ring and the hollow push rod; the valvular stent is made of platinum and nickel-titanium alloy. The invention has the following advantages and effects: the valvular stent is released at the neck of the intracranial aneurysm, which can assist the spring coil embolization and prevent the spring coil from coming out of the intracranial aneurysm; at the same time, the risk of the coil being compressed is reduced; there is no need to use a stent, thrombus and other problems are not easy to produce, patients do not need to take antiplatelet drugs, reducing the perioperative complication rate.

Description

technical field [0001] The invention relates to the field of neurointerventional devices, in particular to an intracranial aneurysm neck sealing device. Background technique [0002] Intracranial aneurysm is a disease in which the structure of the intracranial artery wall is destroyed and the wall is abnormally bulged due to various factors, and its incidence rate is about 5%-8%. Epidemiological studies by the World Health Organization have shown that the incidence of aneurysmal subarachnoid hemorrhage (aSAH) in different countries around the world ranges from 2 / 100,000 to 22.5 / 100,000. In the United States, the annual cost of hospitalization for unruptured intracranial aneurysms is about $500 million, and for patients with SAH, the annual cost is about $1.7 billion. The 30-day mortality rate after aneurysm rupture and bleeding is as high as 45%, and 30% of the survivors have varying degrees of disability, which brings a heavy economic burden to society and families. Curre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/12
Inventor 黄清海刘建民郭远益冯明陶吕楠
Owner 黄清海
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