Thrombus removal device and use method thereof

Abstract

The invention discloses a thrombus removal device and a use method thereof. The thrombus removal device comprises a conveying mechanism, a control mechanism, a main bracket and an auxiliary bracket, wherein the conveying mechanism comprises a conveying pipe; the control mechanism comprises a control line and a developing ring, wherein the control line is movably arranged in the conveying pipe in apenetrating mode, and the developing ring is arranged on the control line; the main bracket is in a reticular structure, and a near-end of the main bracket is fixedly arranged at a far-end of the conveying pipe; the auxiliary bracket comprises a plurality of spiral lines which can be mutually wound and released, the near-end of a spiral line is fixedly arranged on the control line, and the far-end of the spiral line can be bound on the control line and is close to the developing ring. Through a combined action and interworking of the main bracket and the auxiliary bracket, thrombus can be efficiently removed, and an occurrence of a thrombus escape phenomenon can be prevented, so that burden brought to a patient by repeatedly removing the thrombus is reduced. The thrombus removal device and the use method thereof are suitable for a primary treatment of cerebral arterial thrombosis patients with continuous occlusion of anterior circulation and proximal aorta and small infarction.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a thrombus removal device and a method for using the same. Background technique [0002] Mechanical thrombectomy has become a research hotspot in recent years, and has a satisfactory clinical effect on recanalization of acute ischemic stroke caused by large vessel occlusion. Among them, mechanical arterial thrombectomy devices have received extensive attention due to their many advantages, such as rapid recanalization, lower bleeding conversion rate, and extended time window for stroke intervention. At present, the DEFUSE 3 study has extended the time window of patients based on image screening to 16 hours, and the DAWN study has even extended the time window of patients based on image screening by 24 hours. The highest level of evidence recommends thrombectomy for 6-16 hours, and the B-R level of evidence recommends thrombectomy for 6-24 hours. Guidelines in my country and the U...

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Problems solved by technology

[0006] The main purpose of the present invention is to provide a thrombus removal device and its use method,

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