Stopper device

An airway device for human or animal use, the airway device including an airway tube having a first open end and a second open end, wherein the first open end of the airway tube is surrounded by a laryngeal cuff formed of a polymeric or other plastic material, wherein the laryngeal cuff includes a back dorsal portion, a front face portion and a tip, the tip including a front face portion and a dorsal portion, wherein the front face portion of the laryngeal cuff has a shape adapted to form an anatomical fit over the laryngeal inlet of a human or animal patient, and form a seal with the laryngeal inlet of the patient, wherein the tip includes an unsymmetrical annular sealing bulge formed at least in part from a soft polymeric or other plastics material with a Shore hardness of between 40 and 000 on the A scale, wherein the unsymmetrical annular sealing bulge is larger on the front face portion of the tip than on the dorsal portion of the tip whereby to form a better seal with the laryngeal inlet of the patient, and wherein the unsymmetrical annular sealing bulge is configured to wedge into an upper esophagus region of the human or animal patient.