CPC A61M 16/0622 (2014.02) [A61M 16/0057 (2013.01); A61M 16/0066 (2013.01); A61M 16/06 (2013.01); A61M 16/0611 (2014.02); A61M 16/0616 (2014.02); A61M 16/0683 (2013.01); A61M 16/0694 (2014.02); A61M 16/0816 (2013.01); A61M 16/0858 (2014.02); A61M 16/0875 (2013.01); A61M 16/20 (2013.01); A61M 16/0633 (2014.02); A61M 16/0825 (2014.02); A61M 16/0841 (2014.02); A61M 2016/0661 (2013.01)] | 26 Claims |
1. A mask assembly for treating a patient with a respiratory disorder, comprising:
a cushion module at least partly forming a breathing chamber when the cushion module contacts the patient's face in use, the cushion module having a frame and a cushion, the frame being more rigid than the cushion and the cushion being configured to form a seal with a patient's face in use, the frame having a frame opening;
headgear configured to hold the cushion module in a sealing position in order to enable a supply of breathable gas at positive pressure to be delivered to the patient's airways, the headgear including a pair of upper strap portions configured to engage the patient's head superior to the patient's ears and a pair of lower strap portions configured to engage the patient's head below the patient's ears,
a shroud module constructed from a material more rigid than the cushion, the shroud module including a pair of lower headgear connector portions configured to connect to the pair of lower straps portions and an opening configured to align with the frame opening during use;
a clip-on upper headgear connector, the clip-on upper headgear connector including a pair of arms each including a slot to receive one of the upper strap portions and a connecting portion that connects the pair of arms to one another, the connecting portion including a clip structure on each of a left and right side of said connecting portion; and
an elbow-shaped conduit constructed from a more rigid material than the cushion, the elbow-shaped conduit including a first end removably snap-fit to the frame at the frame opening and a second end having a tube configured to connect to an air delivery tube to deliver pressurized breathable gas to the patient, wherein the elbow-shaped conduit redirects a flow of air from a first direction to a second direction that is angled relative to the first direction, wherein the elbow-shaped conduit includes an anti-asphyxia valve between the first end and the second end,
wherein the mask assembly does not include a forehead support.
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