Pusher and thrombus aspiration system comprising same

Abstract

The invention provides a pusher and a thrombus aspiration system comprising the same. The system comprises a suction sheathing canal, a sheathing canal positioning support and a pusher. The suction sheathing canal comprises a sheathing canal body, and the sheathing canal positioning support is arranged at the far end of the sheathing canal body. The sheathing canal positioning support is of a self-expanding support structure with the two ends open. The pusher comprises a pushing head, a pushing rod and a driving assembly. The pushing head is provided with an annular cavity which is provided with an opening facing the near end and used for containing the sheath tube positioning support in the compressed state. The far end of the pushing rod is connected with the near end of the pushing head, and the pushing rod and the pushing head can penetrate through the suction sheath tube and can axially move relative to the suction sheath tube. The driving assembly is connected with the pushing rod and used for driving the pushing rod to move towards the far end in the suction sheathing canal so as to release the sheathing canal positioning support. According to the embodiment of the invention, the suction sheathing canal performs centered suction through the supporting effect of the sheathing canal positioning bracket, the suction port can be expanded, the suction efficiency is improved, the blood loss amount is reduced, and the operation is convenient.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a pusher and a thrombus suction system comprising it. Background technique [0002] Vascular disease has become an important factor affecting human health, and interventional thrombectomy is currently a research hotspot in the field of thrombosis treatment. [0003] Suction thrombectomy has become more and more common in clinical application in recent years, but due to the complexity of vascular anatomy, the current suction catheter is often close to one side of the blood vessel wall during suction, resulting in poor suction effect and blood loss during the suction process. The amount is large and there is a risk of damage to the vessel wall. Contents of the invention [0004] The purpose of the embodiments of the present invention is to provide a pusher and a thrombus suction system including the same, so as to solve the problems of low suction efficiency, large blood...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a pusher and a thrombus suction system including it, so as to solve the problems of low suction efficiency, large blood loss and easy damage to the blood vessel wall

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