Thrombectomy stand, thrombectomy device and thrombectomy system

Abstract

The invention relates to a thrombectomy bracket, a thrombectomy device and a thrombus retrieval system. The thrombus retrieval bracket includes a first bracket body and a second bracket body: the second bracket body is arranged at the far end of the first bracket body; the second bracket body It includes a first pipe diameter section and a transition section; the first pipe diameter section and the transition section are arranged alternately along the axial direction of the thrombectomy support, and two adjacent first pipe diameter sections are connected by a transition section; near the thrombectomy support When the end and the distal end are relatively far apart in the axial direction, at least a partial area of ​​the first pipe diameter section shrinks radially, and the radially contracted areas of two axially adjacent first pipe diameter sections form an included angle. When the thrombus retrieval stent of the present invention is pulled after capturing a thrombus in a blood vessel, the thrombus retrieval stent can maintain its shape in different directions, and the entire thrombus retrieval stent will not collapse significantly, and the thrombus retrieval stent that can maintain its shape in different directions can increase thrombus The resistance to escape can effectively capture thrombus in different directions and reduce the risk of thrombus escape.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a thrombectomy bracket, a thrombectomy device and a thrombus retrieval system. Background technique [0002] Thrombosis is the abnormal aggregation of platelets and other formed components in the blood to form blood clots. Blood clots may occur on the inner wall of the heart or on the wall of blood vessels, causing blood vessel blockage or embolism, and secondary serious physical injury. Thrombosis spreads throughout the entire cardiovascular system, affecting tissues and organs throughout the body, not limited to myocardial infarction, deep vein thrombosis, or cerebrovascular thrombosis. Thrombosis can occur in blood vessels anywhere in the body. The incidence of venous thrombosis is higher than that of arterial thrombosis, the ratio of the two can reach 4:1, venous thrombosis accounts for 40% to 60% of the thrombus mechanism, the incidence of obstructive coronary thromb...

AI Technical Summary

Problems solved by technology

The common defect of these mainstream products is that when the blood vessel is over-bent, the structure is easily deformed and collapsed. When the blood vessel is retracted, the thrombus is easy to fall off at the bent blood vessel, and the thrombus escapes, causing varying degrees of damage to the blood vessel.

The internal carotid artery, middle cerebral artery, vertebral artery, and basilar artery are the most common sites of nerve thrombus, and the state of acute thrombus is mostly greasy and slippery.

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