Patent ID: 6792948
Filing Date: 2004-09-21
Classification: A61M

Abstract:
A laryngeal mask airway device, comprising:A. an inflatable cuff, the cuff defining a central opening at least when inflated, the cuff being insertable through a mouth of a patient to an inserted location within the patient, the cuff surrounding a glottic opening of the patient when inflated and at the inserted location; B. an airway tube extending from a proximal end to a distal end, the airway tube defining an internal passage, an anterior portion, a posterior portion, a left portion, and a light portion, an airway passage extending from the proximal end of the tube through the internal passage to the glottic opening when the cuff is inflated and at the inserted location, the anterior portion being characterized by a thinner wall thickness than the left and right portions, the posterior portion being characterized by a thinner wall thickness than the left and right portions, a cross section of the airway tube having an outer perimeter, the outer perimeter including a curved segment and a linear segment, the curved segment extending from a first point to a second point, the linear segment extending from the first point to the second point.