Expiratory valve arrangement for a respiratory device with a device for receiving a pressure sensor

摘要

An expiratory valve assembly (22) for a ventilator for artificial respiration of patients is flowed through in an expiratory flow direction (E) and comprises: - an upstream breathing gas channel (54) extending along a first channel path (K1) and one coming from the patient A downstream breathing gas channel (58) which extends along a second channel path (K2) and which is connected to a respiratory gas sink (U) or connectable, - a valve body (64) and a Valve seat (66) having valve assembly (63) provided between the upstream and downstream breathing gas passages (54, 58) for providing expiratory breathing gas flow at a predetermined first positive gas pressure in the upstream breathing gas passage (54) relative to the downstream breathing gas passage (58) from the upstream breathing gas channel (54) in the downstream breathing gas passage (58) and at a predetermined second breathing gas pressure in the downstream breathing gas passage (58) relative to the upstream breathing gas passage (54) blocks gas flow from the downstream breathing gas passage (58) into the upstream breathing gas passage (54) Expiratory valve assembly (22) has a bypass chamber (74) which fluidly communicates with the upstream breathing gas duct (54) and extending from the upstream breathing gas duct (54) in the region of the downstream breathing gas duct (58) and there for coupling a gas pressure sensor (80 ) is trained.