Intracranial vascular thrombus retrieval machine and thrombus retrieval device

An embolization device and inner layer technology, applied in the field of intracranial vascular thrombectomy device and intracranial vascular thrombectomy device, can solve the problems of easy detachment of distal blood vessels, re-embolization, good flexibility, etc., so as to reduce risks and prevent thrombosis. The effect of falling off and simple structure

Inactive Publication Date: 2014-10-01
MICROPORT NEUROTECH SHANGHAI
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

[0010] In view of this, the present invention provides an improved thrombectomy system, which solves the problem in the prior art that the plaque on the blood vessel wall and the broken thrombus block are easy to fall off and cause the re-embolization of the distal blood vessel, and the system is small in size, Good flexibility

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  • Intracranial vascular thrombus retrieval machine and thrombus retrieval device
  • Intracranial vascular thrombus retrieval machine and thrombus retrieval device
  • Intracranial vascular thrombus retrieval machine and thrombus retrieval device

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Embodiment Construction

[0028] Refer below Figure 1-8 Embodiments of the present invention are described in detail.

[0029] For the convenience of description, the following description uses the terms "proximal end" and "distal end", wherein "proximal end" refers to the end near the operating end, and the distal end refers to the end far from the operating end.

[0030] figure 1 A general schematic view of the thrombectomy device 1 is shown, which includes an outer sheath tube 2 , a push-pull guide wire 3 and a thrombus retriever 10 . The thrombus retriever 10 is connected to the push-pull guide wire 3 , and the installed push-pull guide wire 3 and the thrombus retriever 10 are pressed into the outer sheath tube 2 . The thrombus retriever 10 can be switched between the retracted position and the deployed position by pushing and pulling the guide wire 3. In the retracted position, the thrombus retriever 10 is retracted into the outer sheath tube 2. In the deployed position, the thrombus retriever ...

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Abstract

The invention provides a vascular thrombus retrieval machine and a thrombus retrieval device which are particularly applicable to retrieving thrombi in intracranial blood vessels. The thrombus retrieval machine comprises an outer-layer stent and an inner-layer stent. The inner-layer stent and the outer-layer stent are netted, the outer-layer stent covers the inner-layer stent, and a gap is formed between the outer-layer stent and the inner-layer stent. The vascular thrombus retrieval machine and the thrombus retrieval device have the advantages that the thrombi can be firmly fixed by the aid of the vascular thrombus retrieval machine in withdrawal procedures after being captured, accordingly, the capturing stability can be improved, the thrombi can be prevented from falling off, the problem of secondary embolism of distal blood vessels due to the fact that plaques on the walls of blood vessels and fragmental thrombus blocks are easy to fall off can be solved, and the vascular thrombus retrieval machine and the thrombus retrieval device are small in size and good in flexibility.

Description

technical field [0001] The invention relates to a medical device, in particular to a medical device for intervening blood vessels, in particular to an intracranial blood vessel thrombus retriever. The invention also relates to an intracranial blood vessel thrombus retrieval device comprising the thrombus retriever. Background technique [0002] Intravascular thrombosis is a common and frequently-occurring disease in clinical practice, and intracranial thrombosis is the most important. It causes cerebral embolism and has the characteristics of high morbidity, disability, mortality and recurrence. Major diseases causing death and disability in middle-aged and elderly people. With the continuous increase of the elderly population and the improvement of living standards, the incidence of cerebrovascular disease is constantly increasing. According to the survey, there are currently 3 million new cerebral thrombosis groups in my country every year, and the proportion of acute ce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/22
CPCA61B17/221A61B2017/22038
Inventor 徐庆顺谢志永倪尊张季杰金巧蓉吴颖妹祁勇翔罗七一
Owner MICROPORT NEUROTECH SHANGHAI
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