Novel cerebral thrombus removal device and method for removing thrombus by using device

Abstract

The invention relates to the technical field of medical apparatus and instruments, in particular to a novel cerebral thrombus removal device and a method for removing a thrombus by using the device. The cerebral thrombus removal device includes a stent and a transportation system connected with the near end of the stent, the stent is of a self-expansion pipe network structure formed through mutualconnection of multiple mesh units, the surface of the stent is curved in a wave shape, the stent is transported to the vascular embolism position of an intracranial great vessel through the transportation system, the stent of the pipe network structure is unfolded through self-expansion, and the thrombus is captured. The surface of the stent is arranged to be curved in a wave shape, so that the contact area of the surface of the stent and a vessel wall is small, the metal coverage is low, in the process of thrombus removal, damage to the intima of the vessel is less, friction between the thrombus and the vessel wall is reduced at the same time, and therefore the thrombus is easy to remove and maintained to be relatively integrated to prevent thrombus debris from entering the far end or anormal vessel; the thrombus can be removed fast, and the stability of thrombus removal is enhanced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a novel device for removing a cerebral thrombus and a method for removing a thrombus using the device. Background technique [0002] At present, China is a major stroke country in the world, and stroke has become the first cause of death among Chinese residents. According to relevant foreign epidemiological studies, 3 out of every 4 stroke patients suffer from different degrees of disability. [0003] Acute ischemic stroke (acute ischemic stroke, AIS, commonly known as cerebral infarction) is the most common type of stroke, accounting for 80% of all strokes, especially acute stroke caused by large vessel occlusion, which is often dangerous, with mortality and disability. The high rate will cause the greatest harm to the patient. Once a stroke occurs, it will cause a heavy burden to the patient himself, his family and the society. [0004] Time is life, ultra-early thro...

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Problems solved by technology

[0013] The purpose of the present invention is to provide a new type of cerebral thrombus removal device and a method for removing thrombus using the device to solve the problem that the existing thrombus removal method easily causes endothelial damage and vasospasm in the thrombectomy process and the success rate of the operation is not high The problem

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