An endoscopy device (1) for facilitating use of an endoscope, comprising at least one airway tube (2) and a mask (3) having a distal end (4), a proximal end (5) and a peripheral formation ?ß) capable of conforming to, and fitting within, the actual and potential space behind the larynx of the patient to form a seal around the circumference of the laryngeal inlet, the peripheral formation (6) establishing separation between a laryngeal； chamber side (3a) and a pharyngeal side (3b), the device further comprising a conduit (8) adapted for passage of an endoscope into the oesophagus of a patient when mask (3) is in place, conduit (8) including a distal end for cooperation with the oesophageal sphincter, the conduit having a laryngeal side (8d), a pharyngeal side (8c), a right side (8e) and a left side (8f), and an outlet wherein at the outlet the width between the left side and the right side is smaller than the width of the conduit.
