Ventilator in which the inspiratory flow rate is controlled by the expiratory flow rate

摘要

The invention relates to a ventilator in which the inspiratory gas flow is controlled by the expiratory gas flow. In order to avoid triggering problems, especially when ventilating newborn babies, the ventilator is controlled such that gas flows at a continuous rate through the inspiration and expiration lines. At the same time, the gas flow is measured in the expiration line via a gas flow sensor. According to the invention, the measured signal is used for the control of a valve in the inspiration line such that a constant gas flow is maintained in the expiration line. IMAGE