Proceedings on Automation in Medical Engineering
Vol. 2 No. 1 (2023): Proc AUTOMED

Modelling and control, ID 726

Simulation of the Respiratory CO2 Concentration with a Blower-Based Lung Simulator

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Sandra Henn (Institute for Electrical Engineering in Medicine, Universität zu Lübeck, Lübeck, Germany), Birger Koehne (Institute for Electrical Engineering in Medicine, Universität zu Lübeck, Lübeck, Germany), Georg Männel (Fraunhofer-Einrichtung für Individualisierte und Zellbasierte Medizintechnik IMTE and Institute for Electrical Engineering in Medicine, Universität zu Lübeck, Lübeck, Germany), Philipp Rostalski (Institute for Electrical Engineering in Medicine, Universität zu Lübeck and Fraunhofer-Einrichtung für Individualisierte und Zellbasierte Medizintechnik IMTE, Lübeck, Germany)

Abstract

Mechanical ventilation has become one of the most widely used life-supporting techniques in the world, providing a proper gas exchange even if the patients breathing is impaired. To verify the functions of these ventilators during development, bench tests, such as lung simulators, offer a wide range of test functionalities. Therefore, a simulator has to provide realistic features of the lung, including the ability to reproduce the varying gas concentration (physiological capnogram) at its interfaces. This paper presents the implementation of a gas mixing unit into an open blower-driven lung simulator to reproduce the respiratory CO2 concentration of a patient.

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