Patent ID: 7997267
Filing Date: 2011-08-16
Classification: A61M,A62B,Y10T

Abstract:
1. A frame for a respiratory mask assembly that delivers breathable gas to a patient, the frame comprising: a main body having a front surface and a rear surface adapted in use to face the patient, the main body having an aperture provided therethrough for the introduction of breathable gas into a nasal breathing cavity defined by the frame; an elbow assembly supported by the main body; a wall extending from the front surface and surrounding the aperture, the wall having a substantially rigid flange at a distal end thereof that is structured to swivelably couple with the elbow assembly, wherein the flange extends radially outwards from the wall; and an inner wall and an outer wall each extending rearwardly from the rear surface, the inner and outer walls being spaced to define a channel therebetween that is structured to receive a side wall of a cushion so as to removably attach the cushion to the frame, wherein the inner and outer walls extend in a direction of engagement and disengagement of the cushion side wall with the channel.