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Intracranial vascular thrombus retrieval machine and thrombus retrieval device

An embolization device and inner tube technology, applied in medical science, surgery, etc., can solve the problems of easy detachment of distal blood vessels, re-embolization, good flexibility, etc., and achieve the effects of reducing risk, preventing thrombus from falling off, and having a simple structure.

Inactive Publication Date: 2014-10-01
MICROPORT NEUROTECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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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

[0026] Refer below Figure 1-11 Embodiments of the present invention are described in detail.

[0027] 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.

[0028] figure 1 A general schematic view of the thrombectomy device 1 is shown, which includes an outer sheath 2 , a push-pull guide wire 3 , an inner tube 4 and a thrombus retriever 10 , the inner tube is sheathed in the outer sheath 2 and can move relative thereto. 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 inner tube 4 . 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 re...

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Abstract

The invention provides a vascular thrombus retrieval machine and a thrombus retrieval device which are particularly applicable to retrieving thrombin in intracranial blood vessels. The thrombus retrieval machine is of a netted structure, can be shifted between a withdrawal position and a spreading position, and is characterized by comprising concave and / or convex structures. 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 a blood vessel thrombus retriever which can be used in the brain. The invention also relates to a 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/22
CPCA61B17/221A61B2017/2212A61B17/22A61B17/22031A61B2017/22001A61B2017/22038A61B2017/22067A61B2017/320064
Inventor 徐庆顺倪尊张谢志永金巧蓉季杰刘聪常孟琪罗七一
Owner MICROPORT NEUROTECH SHANGHAI
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