In-vitro simulated ventricular system device

Abstract

An in-vitro simulated ventricular system device comprises an external bag, an internal water bag, a first pipeline, a second pipeline and an external controller. The internal water bag is arranged in the external bag. A pressure sensor is arranged on the inner wall of the external bag. One end of the first pipeline penetrates the external bag from the upper side to be communicated with the internal water bag. An upper valve is mounted on the first pipeline. The other end of the second pipeline penetrates the external bag from the lower side to be communicated with the internal water bag. A lower valve is mounted on the second pipeline. The external controller is connected with the upper valve, the lower valve and the pressure sensor. The in-vitro simulated ventricular system device has the advantages that the device is simple in structure, reliable to use and capable of monitoring pressure of encephalic ventricular systems of patients in real time and adjusting drainage in vitro according to pressure change; by the device, direct contact between the pressure sensor and cerebrospinal fluids is avoided, and intracranial infection risks are reduced.

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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