Simulation of Mathematical Model for Lung and Mechanical Ventilation

Abstract

A mathematical model of lung behavior describes the lung status during normal breathing and artificial ventilation in patients. This paper proposes a new approach of Mathematical Model (MM) improvement for mechanical ventilation including Positive End Expiration Pressure (PEEP) and dynamic compliance (C) , which represents the relation between lung volume and pressure during artificial ventilation.MM has been expressed using linear, quadratic and exponential equations to represent the combination of inspiration and expiration in case Pressure Controlled Ventilator (PCV) and Volume Controlled Ventilator (VCV). Additionally, VCV and PCV signals have been simulated for both ideal and practical case. The MM has been constructed by Matlab platform, where the simulator monitors artificial ventilation pressure, volume and flow curves of VCV and PCV with new considerations PEEP and dynamic compliance monitoring. The simulated MM provides a simple environment for testing and monitoring VCV and PCV and the lung function laboratory.It can be used for instruction and training.