Intracranial vascular thrombus retrieval machine and thrombus retrieval device

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...

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

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