A laryngeal-mask airway device including provision for drainage of the
oesophagus comprises an inflatable main-cuff and a backplate having a
laryngeal-side and a pharyngeal-side. The backplate also has an external
tube-joint adjacent to the proximal region of the main-cuff. The
backplate is hermetically bonded to the periphery of the main-cuff
establishing separation between a laryngeal-chamber region and a
pharyngeal region. An distally open evacuation tube includes a distal
portion which longitudinally traverses the interior of the distal region
of the main-cuff in sealed relation therewith for operative engagement
and communication with the inlet of the oesophagus. The evacuation tube
traverses the laryngeal-chamber region generally adjacent to the
laryngeal-side of the backplate and passages through a proximally located
tube-joint to the pharyngeal region. An airway tube also extends into the
tube-joint for communication with an airway port to provide a flowpath
between the airway tube and laryngeal-chamber region.