Author(s)

S. Wada, M. Tanaka, T. Horikawa & H. Nakamura

Abstract

Computational respiratory mechanics approach to optimal artificial ventilation S. Wada", M. Tanaka\ T. Horikawa" & H. Nakamura* ^Faculty of Science and Technology, Ryukoku University, Japan ^Faculty of Engineering Science, Osaka University, Japan ABSTRACT The respiratory dynamics is investigated from the view point of computational biomechanics. A total respiratory model is proposed and the artificial ventilation is simulated under several conditions of inhaled gas pressure. The raise of the pressure amplitude increases the tidal volume and decreases the blood flow. This trade-off to the gas exchange leads an optimal pressure condition of the artificial ventilation. INTRODUCTION Many computational approaches have been applied to understand the mechanical behavior of the lung respiration[l-7j. The model-based approaches assisted by the computational tool give an insight into mechanical phenomena in the lung which could not be observed directly by experiments. However, most

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