Hirndruckmodellierung und Regelung einer neuen mechatronischen externen Ventrikeldrainage

Abstract

The drainage of cerebrospinal fluid by an external ventricular drainage is an indispensable therapy for acute brain pressure rise which at present is realized commonly with purely mechanical devices. The new drainage concept presented in this work uses a mechatronic device with automatic pressure control to enable a more reliable and automated therapy for the patient and a comprehensive examination of the disease for the doctor by the monitoring of the important parameters brain pressure, drained cerebrospinal fluid and compliance. To control the ventricular drainage, a partial static compensation of the process nonlinearity was combined with a proportional integral controller. This controller was tested in simulations and in a human-like test rig. The controlled ventricular drainage was able to achieve all brain pressure control targets. © Oldenbourg Wissenschaftsverlag.