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Embolism device and spring rings thereof

A coil and embolization technology, which is applied in the field of medical devices, can solve problems such as difficulty in balancing stable basket formation and soft packing, failure to meet the needs of aneurysm embolization, difficulty in compression, etc., to ensure stability, good support, and good compliance Effect

Active Publication Date: 2018-11-16
MICROPORT NEUROTECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is an obvious defect in the three-dimensional structure of the existing spring coils, that is, it is difficult to balance stable basket formation and soft packing. The problem of poor compliance makes it impossible to meet the embolization requirements of aneurysms of different shapes and sizes

Method used

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  • Embolism device and spring rings thereof
  • Embolism device and spring rings thereof
  • Embolism device and spring rings thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] like Figure 1 to Figure 3 As shown, the present embodiment provides a spring coil 10, which is formed by connecting three types of basic units in six planes, and the basic units include an O-shaped unit 13, an Ω-shaped unit 11 and a C-shaped unit 12 , the number of the O-shaped unit 13 is one, the number of the C-shaped unit 12 is at least two, and the total number of the O-shaped unit 13, the Ω-shaped unit 11 and the C-shaped unit 12 is six, and the six The basic units are respectively distributed in six planes, so as to obtain the spring coil 10 with hexahedral structure. Here, the shape of the spring coil 10 is like a hexahedron, but not limited to being a regular hexahedron, a parallelepiped or an irregular hexahedron. In some other embodiments, the six basic units may also be respectively distributed in six planes of a polyhedron such as an octahedron, and the polyhedron includes at least seven faces.

[0046] There are many ways to arrange the O-shaped unit 13,...

Embodiment 2

[0054] like Figure 4 As shown, a spring coil 20 is provided, which is formed by connecting three types of basic units in five planes, and the basic units also include O-shaped units 13, Ω-shaped units 11 and C-shaped units 12, so The quantity of the O-shaped unit 13 is one, the quantity of the C-shaped unit 12 is at least two, and the total number of the O-shaped unit 13, the Ω-shaped unit 11 and the C-shaped unit 12 is five, and the five units They are respectively distributed in five planes, so as to obtain the spring ring 20 with pentahedron structure. Here, the shape of the spring ring 20 is like a pentahedron. In some other embodiments, the five basic units may also be respectively distributed in five planes of a polyhedron such as a hexahedron, and the polyhedron includes at least six faces.

[0055] In the pentahedron structure, the O-shaped units 13, the Ω-shaped units 11 and the C-shaped units 12 can be arranged in various ways, but the arrangement requirements are...

Embodiment 3

[0060] This embodiment provides a spring coil 30, which is formed by connecting three types of basic units in eight planes, and the basic units also include O-shaped units 13, Ω-shaped units 11 and C-shaped units 12, so The quantity of the O-shaped unit 13 is one, the quantity of the C-shaped unit 12 is at least two, and the total number of the O-shaped unit 13, the Ω-shaped unit 11 and the C-shaped unit 12 is eight, and the eight units They are respectively distributed in eight planes, so that an octahedral spring coil 30 is obtained. Here, the shape of the spring coil 30 is similar to an octahedron, but it is not limited to a regular octahedron, as long as it is distributed on eight faces of the polyhedron.

[0061]In the octahedral structure, there are also various arrangements of the O-shaped units 13 , Ω-shaped units 11 and C-shaped units 12 , and the principle of the specific arrangement is basically the same as in Embodiment 1. The specific arrangement manner will be f...

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Abstract

A spring ring is formed by connecting at least four basic units on different planes. The at least four basic units comprises at least two c-shaped units and at least one o-shaped unit or omega-shapedunit, and the at least two C-shaped units are arranged on two adjacent planes and are sequentially connected to form an S-shaped structure. The embolism device preferably comprises a plurality of spring rings arranged side by side, the plurality of spring rings are connected end to end and one of any adjacent two spring rings is capable of twisting relative to the other about the axis of the embolism device. Because the stability of the omega-shaped structure is good, the stability of the spring ring can be maintained. Meanwhile, because a three-dimensional S-shaped structure has good turningcapability, the spring ring has better compliance. According to the construction mode, the spring ring can simultaneously meet the requirements of stable basket forming and compliant filling, therebybeing beneficial for the spring ring to conform to aneurysms with different shapes and sizes, and obtaining a better dense packing effect.

Description

technical field [0001] The invention belongs to the field of medical devices, in particular to an embolization device and a spring coil for treating intracranial aneurysms. Background technique [0002] Cerebral aneurysms, also known as intracranial aneurysms, seriously affect people's health. With the development of imaging technology and intravascular biomaterials, endovascular interventional therapy has replaced surgical aneurysm clipping as the preferred method for the treatment of intracranial aneurysms because of its lower risk and less trauma than surgical treatment. [0003] Aneurysm intracavitary embolization of coils is currently the main method for treating aneurysms. Usually, in the process of coil embolization of aneurysms, a predetermined structural shape is used to form a corresponding shape in the aneurysm to obtain a corresponding embolization effect. For the treatment of aneurysms, the immediate embolization density is one of the important factors affectin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/12
CPCA61B17/12113A61B17/12145A61B2017/00526A61B17/12031A61L31/022A61L31/04A61L2430/36
Inventor 郭远益彭云飞虞鹏查序陈冰王亦群
Owner MICROPORT NEUROTECH SHANGHAI
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