Patent ID: 6079409
Filing Date: 2000-06-27
Classification: A61M

Abstract:
An intubating laryngeal-mask airway device, comprising a rigid airway tube having a curved portion with a central axis that is curved in a first geometric plane pursuant to an arcuate path of substantially constant radius, said arcuate path being adapted to conform to the anatomical course of a patient's oral pathway between a proximal limit which is in near-overlap with the longitudinal center of a patient's hard palate, and a distal pharyngeal limit in said plane and at offset from the glottic aperture, the included angle of curvature between said proximal and distal limits being in the range between 100.degree. and 145.degree., and mask structure of yieldable material at said distal limit, said rigid tube including a proximal end portion integrally formed with and tangentially related to the proximal limit of said arcuate path;said mask structure comprising a backing plate having a generally elliptical periphery in essentially a second geometric plane which is perpendicular to said first geometric plane, said periphery being adapted for sealing conformance to the laryngeal inlet, said mask structure having an airway passage through said backing plate (i) in said first geometric plane and (ii) at an acute angle to said second geometric plane and (iii) connected to the distal limit of said tube.