An integrated closed loop brain protection device

Abstract

The application discloses an integrated closed-loop brain protection device, and relates to the field of nerve interventional medical instruments. A balloon catheter comprises a balloon and a catheter body. A main cavity and multiple auxiliary cavities are arranged in the catheter body. The main cavity penetrates through the catheter body, and the balloon is arranged at the top end of the catheter body. A multi-interface Y valve comprises a main channel and multiple auxiliary channels. The main channel comprises a first channel and a second channel. One end of the first channel and one end of the second channel are in communication with each other. The end of the first channel is connected with the tail end of the catheter body. The auxiliary channels are installed on the side wall of the main channel and are in communication with each other. A filtering unit comprises a filter screen. One end of the filtering unit is connected with the auxiliary channels. A negative pressure auxiliary unit is connected with the other end of the filtering unit through a backflow pipe. The negative pressure auxiliary unit guides the flow direction of blood through negative pressure. The application aims to provide an integrated closed-loop brain protection device. Through the multi-cavity balloon guide catheter body and the multi-interface Y valve, the problems of microembolus escape causing ipsilateral stroke, multi-stage filtration and autologous blood transfusion are solved.

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