| 摘要 |
<p>A laryngeal mask airway device (100), comprising an airway tube (110) extending from a proximal end (114) to a distal end, the airway tube (110) defining an internal passage; an inflatable cuff (334), the cuff (334) defining a central opening (340) at least when inflated, the cuff (334) being disposed near the distal end of the airway tube (110), the cuff (334) being insertable through a mouth of a patient to an inserted location within the patient, the cuff (334) surrounding a glottic opening (212) of the patient when inflated and at the inserted location; a sealed airway passage extending from the proximal end (114) of the tube (110) through the internal passage to the glottic opening (212) when the cuff (334) is inflated and at the inserted location, the cuff (334) defining an inner perimeter that bounds the central opening; and an epiglottis support flange (810), the flange (810) defining an outer perimeter (812) and an inner perimeter (814), the flange (810) comprising a solid sheet of material extending between the outer and inner perimeters (812,814) of the flange (810), the outer perimeter (812) of the flange (810) being fixed to the inner perimeter (802) of the cuff (334), the inner perimeter (814) of the flange (810) defining a single opening, the single opening being smaller than the central opening (340).</p> |
