The invention relates to an artificial airway device 1 to facilitate lung ventilation of a patient, comprising an airway tube 2, a gastric drain tube 3 and a mask 4 at one end of the airway tube 2, the mask 4 including a backplate 5 and having a peripheral formation 6 capable of forming a seal around the circumference of the laryngeal inlet, the peripheral formation 6 surrounding a hollow interior space 7 or lumen of the mask 4 and the airway tube 2 opening into the lumen of the mask, wherein the mask includes an atrium 8 for passage to the gastric drain tube 3 of gastric matter leaving the oesophagus.
