Brain Pressure Dynamics and Control with an External Ventricular Drainage

摘要

In order to compensate for the disadvantages of passive drainage of cerebrospinal fluid and to get information on optimal drainage, a mechatronic extracorporal ventricular drainage system has been developed at the Helmholtz institute. A Pi-controller adjusts the position of a linear tube squeezer to obtain the target intracranial pressure value. This paper presents the developed active drainage and first measurements of the drainage on a test rig including results of an online algorithm to detect the system's hydraulic compliance.