Patent ID: 9744324
Date: 2017-08-29
CPC Classifications: A61M

Claim:
1. A mask assembly adapted for use with a positive airway pressure device for delivery of pressurized gas to a patient for treatment of sleep disordered breathing, the mask assembly comprising: a mask frame including a lower portion and a neck extending from the lower portion; a cushion provided to the mask frame and adapted to contact the patient's face; a forehead support assembly provided to the neck of the mask frame, the forehead support assembly including a forehead support and a forehead pad provided to the forehead support; and an elbow assembly provided to the mask frame, wherein the neck includes a pair of side walls spaced apart from one another along an entire length of the neck, each of the pair of side walls including an inner edge and an outer edge as seen in a front side of the mask assembly adapted to face away from the patient's face in use, wherein the inner edge of one of the pair of side walls cooperates with the inner edge of the other of the pair of side walls to define an open space therebetween along the entire length of the neck that opens towards the front side of the mask assembly, wherein the pair of side walls comprise an upper converging section along an upper portion of the neck wherein the outer edge of one of the pair of side walls and the outer edge of the other of the pair of side walls converge towards one another in a downward direction, and wherein the neck includes a front edge and a rear edge as seen in side view, and the neck is structured and arranged to curve rearwardly from the lower portion towards a rear side of the mask assembly adapted to face towards the patient's face in use such that at least a portion of the front edge is convex towards the rear side of the mask assembly.