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Interventional treatment instrument made from composite material and used for treating cerebral aneurysm embolism

A cerebral aneurysm and composite material technology, applied in the field of therapeutic equipment, can solve the problems of coil aneurysm recurrence and high treatment costs, and achieve the effect of promoting thrombus formation, enhancing embolization effect, and isolating blood flow

Inactive Publication Date: 2015-01-07
SHENZHEN PEOPLES HOSPITAL
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AI Technical Summary

Problems solved by technology

In the course of clinical application, multiple coils are often required to achieve complete embolization of large aneurysms, and the treatment cost is high; in addition, if the coils are not fully filled, there may be a risk of aneurysm recurrence

Method used

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  • Interventional treatment instrument made from composite material and used for treating cerebral aneurysm embolism

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Embodiment Construction

[0025] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] Please refer to the attached figure 1 , an interventional treatment device for cerebral aneurysm embolization made of a composite material of the present invention, which includes: embolization coils arranged in a beaded shape, PU nano electrospinning arranged between rhombic coils, and The delivery guide wire device 1 matched with the embolic coil.

[0027] The embolism coils are arranged in a beaded shape, the main part of which is several diamond-shaped bracket backbones 4 made of nickel-titanium memory alloy bimetallic wires, and the diamond-shaped coils are arranged in a beaded shape through the connection points between the rhombuses; the embolism springs The circle also includes the soft bio-glue bonding point 5 that connects the backbones 4 of the diamond-shaped bracket; The long diameter of the prefabricate...

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Abstract

The invention relates to treatment instruments, in particular to an interventional treatment instrument made from a composite material and used for treating cerebral aneurysm embolism. Bead-like diamond spring coils of the treatment instrument can be coiled to form a space structure conforming to the arterial aneurysm through connecting points of diamonds and plays an arterial aneurysm stuffing role, meanwhile PU nanometer electrically-spun wires between the diamond spring coils can isolate blood flows, promote thrombosis in the arterial aneurysm and achieve arterial aneurysm closing purpose. The effective areas of the spring coils re increased through diamond support frameworks made of nickel-titanium memory alloy composite wires, and the embolism effect of the arterial aneurysm is improved. The PU nanometer electrically-spun wires among the diamond support frameworks are mixed with blood to form membranous substance, the arterial aneurysm can be closed, and thrombosis can be promoted. The using efficiency of the spring coils is improved, and the embolism effect is strengthened.

Description

technical field [0001] The invention relates to a treatment device, in particular to an interventional treatment device made of composite material for cerebral aneurysm embolization. Background technique [0002] Cerebral aneurysm is a sac-shaped tumor formed by the outward expansion of the local vessel wall due to the structural dysplasia of the cerebral artery wall or the damage or aging of the arterial wall caused by trauma or arteriosclerosis. It is the first cause of subarachnoid hemorrhage , in cerebrovascular accidents, second only to cerebral thrombosis and hypertensive cerebral hemorrhage, ranking third. Cerebral aneurysm is an invisible killer of life. If it ruptures, the disability rate and fatality rate are extremely high. [0003] At present, the treatment methods of cerebral aneurysm mainly include conservative medical treatment, craniotomy and endovascular interventional treatment. Conservative medical treatment is mainly to prevent rebleeding and d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/12
CPCA61B17/12113A61B17/1214A61B17/12145A61B17/1215A61B17/12163
Inventor 何凡陈旭东刘艳李鑫曾延华沈新颖蔡进中李勇高泽燕袁佳琳
Owner SHENZHEN PEOPLES HOSPITAL
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