Intracranial vascular pincers type thrombus take-out device

Abstract

The invention relates to an intracranial vascular pincers type thrombus take-out device in the field of medical apparatuses. When a vascular thrombus take-out support is bent, the side face of the near end of the vascular thrombus take-out support is bent to form a first large mesh hole; a second large mesh hole is formed in a unit mesh opposite to the first large mesh hole, and the area of the second large mesh hole is larger than the area of the unit mesh; the vascular thrombus take-out support is matched and provided with a plurality of developing marks. A conveying system comprises a conveying guide wire, a protection sheath, a miniature guide pipe, a guiding guide pipe, a front Y-type valve and a rear Y-type valve. The conveying guide wire is connected with the near end of the vascular thrombus take-out support. The vascular thrombus take-out support is arranged in the protection sheath. The protection sheath is connected with the tail portion of the miniature guide pipe through the rear Y-type valve. The front portion of the miniature guide pipe is directly connected with the guiding guide pipe through the front Y-type valve. By means of the thrombus take-out device, the problems of breakage and escape of thrombi in the capturing and take-out process by means of an existing thrombus take-out device and technology can be solved, the sliding and rolling probability of thrombi stably clamped by pincers is remarkably reduced, and the operative successful rate is increased.

Description

Technical field [0001] The invention relates to an intracranial blood vessel clamp type thrombus removal device in the field of medical equipment. Background technique [0002] Ischemic stroke is a group of acute cerebrovascular diseases whose main clinical manifestation is cerebral ischemic damage. Because of its high morbidity, disability, and mortality, it seriously endangers the lives and health of the people. And quality of life; evidence-based medicine confirms that intravenous thrombolysis with recombinant tissue plasminogen activator (rt-PA) within 4.5 hours of onset is the first choice for the treatment of acute ischemic stroke; however, it arrives at the hospital within a time window Patients with indications for thrombolysis are very limited; in addition, the recanalization rate of intracranial large vessels after intravenous thrombolysis is low. For example, the recanalization rate of the main middle cerebral artery is less than 30%, and the recanalization rate of the...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of intracranial blood vessel clamp type thrombectomy device and its thrombectomy method, which can solve the problem of existing blood vessel thrombectomy device and thrombectomy method. The problem of thrombus fragmentation and escape in the process of capture and removal in the technology makes the probability of the thrombus slipping and rolling after being clamped by stable clamps significantly reduced, improving the success rate of surgery

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