RESPIRATORY DEVICE WITH RAINOUT PROTECTION IN THE PATIENT INTERFACE

摘要

The invention relates to a respiratory device (10) for the artificial respiration of a patient (12), comprising: - a respiration gas source assembly (15, 62), - a flow-changing device (16), - a humidifier device (38) which is designed to increase the value of the absolute humidity of the inspiratory respiration gas flow (AF), said humidifier device (38) having a liquid store (40) and an evaporation device (76) with a variable output for this purpose, - a respiration gas line assembly (30) in order to convey the inspiratory respiration gas flow (AF) from the dehumidifying device (38) to the patient (12), - a flow sensor (44) which detects the value of the respiration gas flow (AF), and - a controller (18) which is designed to control the operational output of the evaporation device (76) depending on a specified target humidity of the respiration gas and depending on signals of the flow sensor (44), the proximal end (30a) of said respiration gas line assembly (30) having a coupling formation (44a) for coupling the respiration gas line assembly (30) to a patient interface (31) that transfers respiration gas to the patient (12). According to the invention, the controller (18) is designed to detect a sequence state of the respiration situation downstream of the coupling formation (44a) in the inspiratory direction depending on operational parameters of the respiratory device (10) and change the operational output of the evaporation device (76) depending on the result of the detection.