In vitro simulated ventricular system device

Abstract

An in vitro device for simulating a ventricular system, comprising an outer bag, an inner water bag, a first pipeline, a second pipeline and an outer controller, the inner water bag is arranged in the outer bag, and a pressure sensor is installed on the inner wall of the outer bag; the first One end of a pipe passes through the outer bag from above to communicate with the inner water bag, and an upper valve is installed on the first pipe; one end of the second pipe passes through the outer bag from below to communicate with the inner water bag, and the second pipe is The lower valve is installed; the external controller is respectively connected with the upper valve, the lower valve and the pressure sensor. With the above technical solution, the device for simulating the ventricular system in vitro of the present invention has a simple structure and is reliable in use, and can monitor the pressure of the intracranial ventricular system of a patient in real time, and adjust the drainage volume outside the body according to pressure changes. At the same time, the present invention avoids direct contact between the pressure sensor and the cerebrospinal fluid, thereby reducing the risk of intracranial infection.

Description

technical field [0001] The invention relates to the field of lateral ventricle external drainage technology and intracranial pressure detection, in particular to an in vitro simulated cerebral ventricle system device. Background technique [0002] For many neurosurgical diseases, extracorporeal drainage of the lateral ventricle is clinically required. Extracorporeal drainage of the lateral ventricle is the drainage of the cerebrospinal fluid or blood accumulated in the ventricle to the outside of the body. The currently used drainage devices basically use a rigid drainage tube to connect to a drainage bag, and the drainage volume is adjusted by adjusting the height of the drainage bag to control the pressure of the drainage outlet of the ventricle. In actual clinical application, the pressure of the patient's intracranial ventricular system can be changed due to factors such as body position, infusion, and emotion. Because the pressure change of the intracranial ventricular...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects that the existing ventricular drainage device cannot observe the changes of the intracranial ventricular system and it is difficult to adjust the drainage volume according to the change of the patient's intracranial pressure, and provide a device for simulating the ventricular system in vitro. The technical problem to be solved is to It can control the drainage volume and monitor the pressure in real time outside the body, making it more suitable for practical use.

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