Blood vessel thrombus extracting implement and thrombus extracting 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, good flexibility, re-embolization, etc., and achieve the effect 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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  • Blood vessel thrombus extracting implement and thrombus extracting device
  • Blood vessel thrombus extracting implement and thrombus extracting device
  • Blood vessel thrombus extracting implement and thrombus extracting device

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Embodiment Construction

[0029] Refer below Figure 1-8 Embodiments of the present invention are described in detail.

[0030] 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.

[0031] figure 1 A general schematic diagram 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 , and the inner tube 4 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 ...

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Abstract

The invention provides a blood vessel thrombus extracting implement and a thrombus extracting device which are especially suitable for intracranial blood vessel thrombus extracting. The blood vessel thrombus extracting implement is of a netty structure and can convert between a retracting position and an unfolding position. The blood vessel thrombus extracting implement is characterized in that at least part of the blood vessel thrombus extracting implement is structured to be a winding structure. According to the blood vessel thrombus extracting implement and the thrombus extracting device, in the recovery process after a thrombus is captured, the thrombus can be firmly fixed, so that stability in capturing is improved, thrombus shedding is prevented, and the problem of re-embolization of remote-end blood vessels due to the fact that blood vessel wall plagues and broken thrombus clots are prone to shedding is avoided. The blood vessel thrombus extracting implement is small in size and high 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. The present invention also relates to a blood vessel thrombus retrieval device comprising the thrombus retriever, which is especially suitable for intracranial blood vessel thrombus retrieval. 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 grou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/22
CPCA61B17/22012A61B2017/22038
Inventor 谢志永徐庆顺倪尊张金巧蓉季杰刘聪张雷罗七一
Owner MICROPORT NEUROTECH SHANGHAI
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