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Intracranial vascular stent

A technology of intracranial blood vessels and vascular stents, applied in the field of medical devices, can solve the problems of easy displacement of vascular stents, puncture of blood vessel walls, etc.

Pending Publication Date: 2021-08-24
成都百瑞恒通医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Aiming at the above-mentioned prior art, the present invention provides an intracranial vascular stent to solve the problems in the prior art that the vascular stent is easy to shift and will puncture the vessel wall

Method used

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Embodiment Construction

[0029] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0030] In the embodiment of the present invention, such as Figure 1~4 As shown, a kind of intracranial vascular stent is provided, and the intracranial vascular stent among the present invention is braided by a developing wire 5 and several framework wires 4, and along its axial direction is successively proximal region 1, working region 2 and far end zone 3. The diameter of the skeleton wire 4 is 10-40 μm, made of elastic material or memory material, including but not limited to one or more of metal, alloy, polymer material; metal or alloy material includes but not limited to stainless steel, nickel titanium alloy or cobalt chromium alloy; polymer materials include but not limited to polyethylene, polyoxymethylene, polyurethane, polyester, polytetrafluoroethylene, fluorinated ethylene propylene copolymer, polyamide, polyimide or nylon. ...

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Abstract

The invention discloses an intracranial vascular stent, and the stent is formed by weaving a developing wire and a plurality of skeleton wires; and the vascular stent is sequentially provided with a near-end area, a working area and a far-end area in the axial direction of the vascular stent. The skeleton wires spirally extend to the tail end of the far-end area from the end part of the near-end area, then are folded back and spirally extend to the tail end of the near-end area, and are woven in an up-and-down staggered manner to form rhombic meshes; the near-end area and the far-end area are horn-shaped, and the tail end of the near-end area is folded inwards to form a folded area; and the developing wires are inserted into the skeleton formed by weaving the skeleton wires in the same way as the skeleton wires, so that the intracranial vascular stent is formed together. The radial supporting force of the two ends of the intracranial vascular stent is improved, and the problem that the stent is impacted by blood flow in a blood vessel to generate displacement is solved. In addition, the two ends of the stent are of a closed-loop structure, and the problem that the blood vessel wall is punctured due to necking and separation of weaving wires can be avoided.

Description

technical field [0001] The invention relates to a medical device implanted in a human body, in particular to an intracranial vascular stent. Background technique [0002] Intracranial aneurysm is one of the cerebrovascular diseases with high mortality and disability. The intracranial aneurysm ruptured, leading to subarachnoid hemorrhage, which seriously endangered the life and health of the patient. If subarachnoid hemorrhage occurs, the untreated fatality rate is close to 50%, and the morbidity rate after treatment is as high as 60%. Hemodynamics are considered a major factor in the development, progression, and rupture of intracranial aneurysms. Reconstruction of the parent artery of an intracranial aneurysm and restoration of the physiological hemodynamics in the aneurysm and the parent artery are the end goals of the treatment of an intracranial aneurysm. [0003] At present, the methods for the treatment of intracranial aneurysms mainly include interventional aneurys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/90A61F2/95
CPCA61F2/90A61F2/95A61F2210/0014A61F2250/0098
Inventor 徐兰馨
Owner 成都百瑞恒通医疗科技有限公司
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