Full-automatic flow-rate-adjusting backflow-preventing cerebrospinal fluid drainage device

Abstract

The invention discloses a full-automatic flow-rate-adjusting backflow-preventing cerebrospinal fluid drainage device which comprises a tube body communicated with a drainage tube, a flow blocking mechanism, a detection mechanism, an adjusting mechanism and a driving mechanism. Two ends of the tube body are respectively a liquid inlet and a liquid outlet, and a flow blocking cavity, an adjusting cavity and a drainage cavity are sequentially formed from top to bottom of a tube body. Compared with an existing cerebrospinal fluid drainage device, the cerebrospinal fluid drainage device is simple in structure, capable of automatically adjusting the flow rate and preventing backflow. The detection mechanism, the driving mechanism and the adjusting mechanism are matched, so that the automatic adjustment of the liquid flow rate is realized, the aim of the invention is achieved, the cranial pressure of a surgical patient is stable, and the safety of the surgical patient is improved. Liquid backflow can be prevented by arranging the flow blocking mechanism, the risk of intracranial infection is avoided, and the safety and the reliability of the invention are improved.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a cerebrospinal fluid drainage device for fully automatic flow rate adjustment and anti-reflux. Background technique [0002] After craniotomy, especially after ventriculocentesis and external drainage, the drainage tube is connected to 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. 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 a day, which is more appropriate, and it is best to flow out slowly. Traditional cerebrospinal fluid drainage tubes are drained by gravity. If you hang them lower, the flow rate will be really ...

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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