| 摘要 |
A laryngeal mask assembly has a tubular shaft 1 with a mask portion 30 formed by a resilient skirt towards its patient end 2, which seals with tissue in the region of the hypopharynx. An inflatable cuff 4, with several annular reinforcing members 42, projects axially at the patient end of the assembly into the laryngeal inlet 34. Towards its patient end, the cuff 4 has a flap 47 that normally closes the passage through the cuff and prevents entry of the epiglottis. A pull cord 50 attached with the flap 47 enables the flap to be pulled to one side, deflecting the epiglottis and opening the passage through the cuff 4. <IMAGE> |
