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an aneurysm closure device

A blocking device and aneurysm technology, applied in the field of medical devices, can solve the problems of occlusion of branch blood vessels, residual coils, inability to completely block the neck of the aneurysm, etc., to promote healing, reduce impact pressure, and improve blood flow. Effect

Active Publication Date: 2022-07-26
MICROPORT NEUROTECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a device for aneurysm closure, which is used for the healing of aneurysms, and overcomes the inability to completely block the neck of the aneurysm caused by the existing coil packing method, and the remaining coils, etc. problems, and the limitations of dense mesh stents and covered stent interventions that can easily lead to branch vessel occlusion

Method used

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  • an aneurysm closure device
  • an aneurysm closure device
  • an aneurysm closure device

Examples

Experimental program
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Effect test

Embodiment 1

[0053] like figure 1 The illustrated stent 101 includes at least four corrugated struts 102 arranged around the central axis A-A of the aneurysm occlusion device. Each of the waveform support rods 102 includes at least two waveforms arranged along the axial direction of the aneurysm occlusion device, wherein the bottommost waveform is the same as the bottommost waveform in the adjacent waveform support rods 102 connect. Preferably, the waveform at the bottommost end of each of the corrugated support rods 102 is connected to the bottommost waveform of the adjacent waved support rods 102 through a contact point, and at least the bottommost wave shape of the corrugated support rods 102 is connected to each other through a contact. The wave shape at the top is separated from the wave shape in the adjacent wave support rods 102 , so that the support frame 101 has a bowl-shaped structure with a flared top.

[0054] In this embodiment, the contact points between the waveforms at th...

Embodiment 2

[0067] like Figure 3-4 As shown, the support frame 101 includes a top flared structure formed by braided metal wires. In this embodiment, the weaving of the support frame 101 may be hand weaving or machine weaving, and the axial dimension and / or the circumferential dimension of the woven mesh is 0.5mm-1.5mm. Wherein, the axial direction refers to the direction parallel to the central axis A-A of the aneurysm occlusion device (such as Figure 3-4 The Y-axis in ), the circumferential direction refers to the circumferential direction of rotation around the central axis A-A of the aneurysm occlusion device (eg Figure 3-4 in the Z circumferential direction). The bottom end of the support frame 101 is fixed on the intermediate ring 3 , and at least 20 mm of loose wire is reserved for weaving the skeleton 201 of the blocking part 2 . In this embodiment, the frame 201 is woven into a disc-shaped structure, and the radial size of the mesh of the frame 201 is 0.1 mm-0.5 mm. Wherei...

Embodiment 3

[0072] like Figure 5-6 As shown, the support frame 101 in this embodiment includes a closed cavity structure formed by weaving metal wires. In this embodiment, the closed cavity structure is shaped into a spherical shape. In other embodiments, the shape of the aneurysm to be embolized depends on the shape of the aneurysm. , the support frame 101 can also be shaped into a closed cavity structure in the shape of an ellipsoid, an egg, a lantern, a spheroid, or the like. In this embodiment, the weaving of the support frame 101 may be hand weaving or machine weaving, and the axial dimension and / or the circumferential dimension of the mesh formed by weaving is 0.5 mm-1.5 mm. Wherein, the axial direction refers to the direction parallel to the central axis A-A of the aneurysm occlusion device (such as Figure 5-6 The Y-axis in ), the circumferential direction refers to the circumferential direction of rotation around the central axis A-A of the aneurysm occlusion device (eg Figur...

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Abstract

The invention relates to an aneurysm sealing device, comprising a support part and a sealing part; the support part comprises a support frame, and the diameter of the bottom end of the support frame is smaller than the maximum diameter of the support frame; the sealing part includes The frame is fixed on the bottom end of the support frame. Compared with the existing coil packing method, the method can immediately prevent blood from entering the aneurysm, improve the hemodynamics at the neck of the aneurysm, promote the healing of the aneurysm, and is especially beneficial for the treatment of ruptured aneurysms. Compared with the existing dense mesh stent or covered stent intervention method, the present invention only covers the neck of the aneurysm, does not affect the blood flow of the collateral vessels, and overcomes the local defect caused by the dense mesh stent or covered stent intervention method. blood problem.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an aneurysm occlusion device. Background technique [0002] With the rapid development of my country's national economy and the increasing improvement of people's material living standards, cardiovascular and cerebrovascular diseases have become a common disease that seriously threatens people's lives and health, and there has been a younger age group. trend. According to the statistics of the World Health Organization, the number of deaths due to cardiovascular and cerebrovascular diseases in my country is as high as 3 million each year, accounting for 51% of the total causes of death in my country each year. Worldwide, 15 million people die from cardiovascular and cerebrovascular diseases every year, ranking first among all causes of death. [0003] Intracranial Aneurysm (IAN) is a common hemorrhagic cerebrovascular disease that occurs mostly on the walls of intracrani...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/12
CPCA61B17/12113A61B17/12177
Inventor 张涵孟繁鹤田浩苗琳莉
Owner MICROPORT NEUROTECH SHANGHAI
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