Blood vessel thrombus extracting system

Abstract

The invention provides a blood vessel thrombus extracting system which comprises a leading guide wire, a pushing-pulling guide wire, an inner tube capable of moving relatively to an outer sheath tube, a thrombus extracting device and a suction device. The leading guide wire penetrates the inner tube which is sleeved in the outer sheath tube, the inner tube can move along the leading guide wire, the thrombus extracting device is connected with the pushing-pulling guide wire, the pushing-pulling guide wire and the thrombus extracting device which are mounted well are pressed and held in the inner tube, the thrombus extracting device can be pushed and pulled to convert between a retracting position and an unfolding position through the pushing-pulling guide wire, and is retracted into the inner tube when at the retracting position and pushed out of the inner tube when at the unfolding position, the suction device is communicated with the inner tube, and suction holes are formed in the inner tube. According to the blood vessel thrombus extracting system, big thrombi can be captured conveniently, and shedding of small thrombi can be prevented through suction, so that the problem of re-embolization of remote-end blood vessels is solved, and probability of complications after thrombus extracting is effectively lowered.

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 thrombectomy system. 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 cerebral thrombosis in stroke has also increased from 55.8% to 81.6%, becoming the number one brain disease. [0003] Vascular recanali...

AI Technical Summary

Problems solved by technology

[0014] 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 are easy to fall off and cause re-embolization of the distal blood vessel, and the system has good flexibility , high capture rate

The thrombus removal system of the present invention combines capture thrombus removal with suction thrombus removal, which can not only capture large thrombus conveniently, but also prevent small thrombus from falling off by suction, and solve the problem of re-embolization of distal blood vessels. Effectively reduces the probability of complications after thrombectomy

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