| 摘要 |
Supraglottic airway (laryngeal mask) structure specifically used for anesthesia, including a silicone mask and a main tube seat with diverging tube opening. The main tube seat is fitted through the silicone mask. The upper and lower faces of the silicone mask are formed with perforations. A rubber annular tube having different diameters is implanted in the silicone mask at the equator thereof. A soft sleeve is fitted on the silicone mask. The inner diameter of the soft sleeve corresponds to the profile of the main tube seat. The soft sleeve has an irregular profile corresponding to the configuration of inner side of the fauces. The soft sleeve is pushed forward to make an upper tube opening of the main tube seat protrude out of the soft sleeve. An anesthetic gas intake tube having an engaging flange is fitted through the diverging section of the main tube seat and engaged therewith. A fine string is used to tie up the soft sleeve, main tube seat and the intake tube so as to prevent the soft sleeve from detaching from the main tube seat. The laryngeal mask is able to completely air-tightly seal the throat of a patient without leakage and over-compressing the mucous membrane of the throat. |
