Abstract: A patient interface for delivering breathable gas to a patient includes a nasal prong assembly including a pair of nasal prongs structured to sealingly communicate with nasal passages of a patient's nose in use and headgear to maintain the nasal prong assembly in a desired position on the patient's face. The headgear includes side straps and rigidizers provided to respective side straps. Each rigidizer includes a first end portion that provides a connector structured to engage a respective end of the nasal prong assembly and an inwardly curved protrusion in the form of a cheek support that curves inwardly of the connector. The cheek support is adapted to follow the contour of the patient's cheek and guide a respective end portion of the side strap into engagement with the patient's cheek to provide a stable cheek support.

Abstract: A patient interface for delivering breathable gas to a patient includes a nasal prong assembly including a pair of nasal prongs structured to sealingly communicate with nasal passages of a patient's nose in use and headgear to maintain the nasal prong assembly in a desired position on the patient's face. The headgear includes side straps and rigidizers provided to respective side straps. Each rigidizer includes a first end portion that provides a connector structured to engage a respective end of the nasal prong assembly and an inwardly curved protrusion in the form of a cheek support that curves inwardly of the connector. The cheek support is adapted to follow the contour of the patient's cheek and guide a respective end portion of the side strap into engagement with the patient's cheek to provide a stable cheek support.

Abstract: A patient interface for delivery of a supply of pressurised air or breathable gas to an entrance of a patient's airways comprising: a cushion member that includes a retaining structure and a seal-forming structure permanently connected to the retaining structure; a frame member attachable to the retaining structure; and a positioning and stabilising structure attachable to the frame member.

Abstract: A mask assembly includes nasal interface, e.g., in the form of a pair of nozzles, at least one joining portion provided to each side of the nasal interface, and a headgear coupled or otherwise provided to or extending from the joining portion, that is looped around the patient's ears. The joining portion is small and compact and may be readily affixed to an existing nasal arrangement, i.e., retrofitted. The joining portion and the headgear can be formed in separate components, or they can be formed as an integral or one-piece arrangement.

Abstract: A mask apparatus for a respiratory treatment can permit delivery of breathable gas to a user. In one example, the mask may employ a frame and cushion to form a seal for both mouth and nose. The frame may be adapted for coupling with a respiratory treatment apparatus so as to permit communication of a pressurized gas from the respiratory treatment apparatus. The cushion, which may be foam, may have a substantially under the nose configuration or over the nose configuration. The mask may have a common plenum chamber for both nose and mouth. The cushion may further define a centrally open lip superior region. The cushion may be adapted to couple with the frame directly or to the frame in conjunction with a cushion support clip. Various features of the cushion may further promote sealing and comfort for the under the nose design.

Abstract: A mask assembly includes nasal interface, e.g., in the form of a pair of nozzles, at least one joining portion provided to each side of the nasal interface, and a headgear coupled or otherwise provided to or extending from the joining portion, that is looped around the patient's ears. The joining portion is small and compact and may be readily affixed to an existing nasal arrangement, i.e., retrofitted. The joining portion and the headgear can be formed in separate components, or they can be formed as an integral or one-piece arrangement.

Abstract: A patient interface for delivery of a supply of pressurised air or breathable gas to an entrance of a patient's airways comprising: a cushion member that includes a retaining structure and a seal-forming structure permanently connected to the retaining structure; a frame member attachable to the retaining structure; and a positioning and stabilising structure attachable to the frame member.

Abstract: A nasal patient interface for delivery of a supply of pressurised air or breathable gas to an entrance of a patient's airways comprising: a cushion member that includes a retaining structure and a seal-forming structure permanently connected to the retaining structure; a frame member attachable to the retaining structure; and a positioning and stabilising structure releasably attachable to the frame member.

Abstract: A patient interface for delivery of a supply of pressurised air or breathable gas to an entrance of a patient's airways comprising: a cushion member that includes a retaining structure and a seal-forming structure permanently connected to the retaining structure; a frame member attachable to the retaining structure; and a positioning and stabilising structure attachable to the frame member.

Abstract: A mask assembly includes nasal interface, e.g., in the form of a pair of nozzles, at least one joining portion provided to each side of the nasal interface, and a headgear coupled or otherwise provided to or extending from the joining portion, that is looped around the patient's ears. The joining portion is small and compact and may be readily affixed to an existing nasal arrangement, i.e., retrofitted. The joining portion and the headgear can be formed in separate components, or they can be formed as an integral or one-piece arrangement.

Abstract: A mask assembly for use in providing a supply of air at positive pressure to the airways of a patient includes a frame and an elbow. The elbow is rotatable with respect to the frame when assembled. The frame includes an elbow-receiving portion. The elbow and elbow-receiving portion of the frame are adapted to include respective interlocking sealing portions and one of the elbow and elbow-receiving portion includes a flexible element that upon assembly flexes to introduce a preload that effects a seal between the respective interlocking sealing portions.

Abstract: An interfacing structure for a mask system includes a cushion component adapted to contact the patient's face in use and a cushion-to-frame component provided to the cushion component. The cushion-to-frame component is structured to secure the cushion component to a mask frame of the mask system. The cushion-to-frame component includes a cushion side adapted to interface with the cushion component and a frame side adapted to interface with the mask frame. The cushion side includes a platform to engage and support the cushion component. The platform provides an engagement surface to engage the cushion component and inner and outer flanges provided to opposing ends of the platform to guide, support and/or retain the cushion component on the platform.

Abstract: An adjustable mask system (100) includes a cushion with a seal (130) having the ability to change size and/or shape. The seal is preferably a one-piece, continuous member without interruptions. To effect adjustment of the size and/or shape of the seal, an actuator may be provided, which may take the form of a dial (190).

Abstract: A swivel elbow for a mask assembly includes an elbow adapted to be provided to the mask assembly and a swivel detachably connected to the elbow. The elbow includes a plurality of spaced apart rings that provide a controlled clearance between the elbow and an interior surface of the swivel.

Abstract: A mask assembly for use in providing a supply of air at positive pressure to the airways of a patient includes a frame and an elbow. The elbow is rotatable with respect to the frame when assembled. The frame includes an elbow-receiving portion. The elbow and elbow-receiving portion of the frame are adapted to include respective interlocking sealing portions and one of the elbow and elbow-receiving portion includes a flexible element that upon assembly flexes to introduce a preload that effects a seal between the respective interlocking sealing portions.