Micro-invision intervened thrombus taking system

Abstract

The invention discloses a micro-invision intervened thrombus taking system, which comprises a conveyor guide wire, a thrombus catching device, a microcatheter and a guide catheter; the thrombus catching device is a net-shaped bracket formed by knitting one or more wires, a remote end of the bracket is closed or necked, a near end thereof is opened and in the shape of cone. The net-shaped bracket can sleeve relatively big main thrombus and also catch stripped small thrombus, so as to prevent small thrombus flowing to the blood vessel at remoter end and largely reduce the possibility of secondary stroke. The head end of the guide catheter is soft and can be expanded by the thrombus to obtain larger thrombus. The fracture resistance and the flexibility of the remote end of the guide catheter are largely improved, therefore, the guide catheter can be conveyed to the blood vessel at remoter end. The net-shaped bracket is also used as a bracket and reserved in a narrow-section blood vessel to expand the blood vessel and dredge the blood flow, therefore, the additional function of the disease is eased. By using the system, the operation time can be saved to win the treatment time for patients with acute cerebral apoplexy stoke, thus the success rate of the revascularization of the patients is improved.

Description

technical field [0001] The invention relates to a minimally invasive interventional thrombus removal system, which belongs to the technical field of medical devices. Background technique [0002] Stroke is a refractory disease that seriously endangers human health and life safety. According to statistics, there are 2.2 million stroke patients in China every year, and 1.5 million stroke patients die every year. There are 8 million survivors of stroke, 6 million of whom have lost their labor force and are unable to take care of themselves to varying degrees. The cost of hospitalization for stroke patients is extremely high, ranging from tens of thousands of RMB to hundreds of thousands or even nearly one million RMB. For patients with cerebral apoplexy who are sent to the hospital in time, the conventional treatment plan is drug thrombolysis, but the active ingredients of many drugs are difficult to reach the lesion, so that the intended treatment purpose cannot be achieved. ...

AI Technical Summary

Problems solved by technology

[0004]1) Both of them have no distal vascular protection design. During use, small thrombus will peel off from the main body and flow to more distal blood vessels, thereby blocking smaller blood vessels , causing a second stroke, and even endangering the patient's life

[0005]2) When encountering a thrombus with a large volume and relatively hard texture, the above two devices cannot squeeze or cut the thrombus into small thrombus, Smaller thrombi are relatively easy to remove

Thrombectomy and stenting are performed separately, the operation is complicated, the operation time is long, and the risk to the patient is great

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