The Technology of Ventilator Airflow Control

Aiming at improving and optimizing the ventilators performance and by reviewing the whole procession for design and research of a modern medical mechanical ventilator, many things about its ventilation control are taken into being considered toward the perspective of machine system in this paper. They are included those building the respiratory system model, getting its parameters and the technique of ventilation control, etc. Their essential mechanism, related key technologies and the working principle of each sub-system are described in detail. And a control-experimentation for realizing the ventilation in a test plat is also given out. And a continuous positive airway pressure (CPAP) control mode realized in this experiment shown the technologies of airflow control are considered well in our design.