| 摘要 |
A modified laryngeal mask airway device (LMA-device) (20) is provided with means to improve ease of insertion, reliability of function and higher seal pressure ( i.e. , cuff pressure ratio). The LMA-device (20) includes an indented section (140) of the airway tube (47) to offer locating means and purchase for the inserting finger, and extended mask aperture bars (115,117) to increase the effective ventilating area of the mask (20) and reduce the possibility of epiglottis displacement occasioned by mask insertion. The LMA-device (20) further includes a modification of the airway tube angle (137) of attachment to the mask (20), and provision of a posterior or back-cushion (77) covering the entire posterior surface of the mask (20). |
