A fully automatic flow rate adjustment anti-reflux cerebrospinal fluid drainage device

Abstract

The invention discloses a cerebrospinal fluid drainage device for fully automatic adjustment of flow rate and prevention of reflux, which comprises a tube body connected to the drainage tube, a flow blocking mechanism, a detection mechanism, an adjustment mechanism and a driving mechanism, and the two ends of the tube body are liquid inlets respectively. With the liquid outlet, the tube body is sequentially provided with a flow blocking chamber, a regulating chamber and a drainage chamber from top to bottom. Compared with the existing cerebrospinal fluid drainage device, the invention has a simple structure, can automatically adjust the flow rate and can prevent backflow. Through the cooperation of the detecting mechanism, the driving mechanism and the adjusting mechanism, the automatic adjustment of the liquid flow rate is realized, thereby achieving the purpose of the present invention, making the intracranial pressure of the surgical patient stable, and improving the safety of the surgical patient. The backflow of liquid can be prevented by setting the blocking mechanism, avoiding the risk of intracranial infection, and increasing the safety and reliability of the present invention.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a cerebrospinal fluid drainage device for automatic adjustment of flow rate and prevention of backflow. Background technique [0002] After craniotomy, especially after ventricle puncture and external drainage, the drainage tube communicates with the cerebrospinal fluid, so it is very important to control the drainage volume, because the cerebrospinal fluid is constantly produced, generally a total of 400~500 ml a day, it is constantly The continuous absorption is in a dynamic balance, and the total amount of cerebrospinal fluid in the brain is about 120-150ml. If too much flows out at once, it will cause low intracranial pressure. Generally, the drainage volume of cerebrospinal fluid is about 200~300 ml per day, and it is better to flow out slowly. The traditional cerebrospinal fluid drainage tube is drained by gravity. If it is hung lower, the flow rate will be really fast. If i...

AI Technical Summary

Problems solved by technology

Traditional cerebrospinal fluid drainage tubes are drained by gravity. If you hang them lower, the flow rate will be really fast. If you raise them higher, the flow rate will slow down, and the amount is very difficult to control. Too much flow out at once, and reflux may also occur as the cerebrospinal fluid pulses, leading to an increased risk of intracranial infection

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