Abstract: A patient interface system to treat a respiratory disorder of a patient, the patient interface system comprising: a positioning and stabilising structure including a back portion and a pair of upper straps extending from the back portion; and a patient interface including a patient interface frame and a pair of rigidiser arms each connected to the patient interface frame at a connection point located in a plane substantially parallel to the patient's Frankfort horizontal plane, the pair of rigidiser arms further including a pair of upper attachment points, wherein the pair of upper straps are adapted to be releasably attached to the pair of upper attachment points such that, when donned by the patient, the pair of upper straps are vertically offset relative to the upper attachment points and substantially parallel to the patient's Frankfort horizontal plane, and wherein the patient interface does not include a forehead support.

Abstract: A system of breathing arrangements for delivering breathable gas to a patient includes at least first and second cushion components, e.g., full-face, nasal, nasal prongs, nose tip, and/or a combination of any of the above, including a nasal or full-face cushion and nasal prongs/nozzles combination, etc., that are different from one another in at least one aspect, and a common frame assembly configured to support each of the first and second cushion components. Various embodiments are directed to a full-face or nasal mask used with a frame having lateral connector portions having a stiffening member. The mask assembly may include a nose height adjustment device for the height of the cushion, or a cushion adjustment member by which the position of the cushion may be adjusted relative to the frame. The mask assembly may include a chin strap assembly.

Abstract: A vent assembly is configured to discharge gas washout from a patient interface that is configured to receive a pressurized flow of breathable gas from a positive airway pressure device. The vent assembly includes a vent base configured to be attached to the patient interface and comprising a plurality of coplanar openings and a hydrophilic material positioned adjacent to the coplanar openings. The hydrophilic material is configured to wick water near the plurality of coplanar openings and/or capture moisture from a gas washout flow adjacent to the plurality of coplanar openings. In addition, the hydrophilic material is configured to release the accumulated moisture and/or water to the pressurized flow of breathable gas for breathing by the patient when the patient inhales.

Abstract: A headgear for use with a patient interface for delivering a flow of breathable gas to a patient includes at least a strap adapted to position the patient interface in sealing engagement with the patient’s airways. The strap is constructed from an elastomer and a first side of the strap includes a first region on a portion of its surface that is textured to reduce friction with objects contacting the strap. A textured surface coating for a portion of an elastomer strap included in a headgear system is adapted to contact the skin of a patient, when in use, and the coating has a Ra value greater than zero. A vent for use with a patient interface for delivering a flow of breathable gas to a patient includes a plurality of rises and runs in a stepped arrangement; and a plurality of holes in the stepped arrangement for the venting of gas.

Abstract: A patient interface is configured to deliver a pressurized flow of respiratory gas to a patient's airways. The patient interface includes a cushion and shell assembly with a cushion portion mounted on a shell portion that is more rigid than the cushion portion. The cushion portion is configured to sealingly engage the patient's face and has a vent opening. The shell portion includes a plurality of headgear connectors. The patient interface further includes a gas washout vent assembly configured to be positioned within the vent opening of the cushion portion. The gas washout vent assembly includes a main body configured to be secured to the cushion portion, a porous body, and an outer cover with a plurality of openings. The main body at least partially houses the porous body and the outer cover.

Abstract: A patient interface assembly is configured to deliver pressurized respiratory gas to a patient's airways. The patient interface assembly includes a cushion configured to sealingly engage the patient's face, a plenum base supporting the cushion, and a positioning and stabilizing structure configured to support the cushion and the plenum base on the patient's face. The positioning and stabilizing structure includes a stiffened portion. The patient interface assembly further includes a removable sleeve. The stiffened portion of the positioning and stabilizing structure is inserted into the removable sleeve. The removable sleeve is configured to be secured to the stiffened portion of the positioning and stabilizing structure by inserting a projection into a side cutout, and the stiffened portion of the positioning and stabilizing structure is prevented from sliding out of the removable sleeve when the projection is received within the side cutout.

Abstract: A system of breathing arrangements for delivering breathable gas to a patient includes at least first and second cushion components, e.g., full-face, nasal, nasal prongs, nose tip, and/or a combination of any of the above, including a nasal or full-face cushion and nasal prongs/nozzles combination, etc., that are different from one another in at least one aspect, and a common frame assembly configured to support each of the first and second cushion components. Various embodiments are directed to a full-face or nasal mask used with a frame having lateral connector portions having a stiffening member. The mask assembly may include a nose height adjustment device for the height of the cushion, or a cushion adjustment member by which the position of the cushion may be adjusted relative to the frame. The mask assembly may include a chin strap assembly.

Abstract: A system of breathing arrangements for delivering breathable gas to a patient includes at least first and second cushion components, e.g., full-face, nasal, nasal prongs, nose tip, and/or a combination of any of the above, including a nasal or full-face cushion and nasal prongs/nozzles combination, etc., that are different from one another in at least one aspect, and a common frame assembly configured to support each of the first and second cushion components. Various embodiments are directed to a full-face or nasal mask used with a frame having lateral connector portions having a stiffening member. The mask assembly may include a nose height adjustment device for the height of the cushion, or a cushion adjustment member by which the position of the cushion may be adjusted relative to the frame. The mask assembly may include a chin strap assembly.

Abstract: A patient interface assembly includes a flexible cushion configured to sealingly engage the patient's nares and a frame with a pair of flexible extending members that extend laterally from opposite sides of the frame. The frame and the flexible cushion together form a chamber. The patient interface assembly also includes a positioning and stabilising structure configured to maintain the flexible cushion in engagement with the patient's nares. The positioning and stabilizing structure has a pair of headgear straps. Each headgear strap is connected to a respective one of the flexible extending members. The flexible extending members do not form an airflow path for the breathable gas. The headgear straps have a multi-layered structure, at least one layer being made of fabric and at least one layer being made of plastic. In addition, the at least one plastic layer is a rigidizer that adds rigidity to the respective headgear strap.

Abstract: A respiratory mask for continuous positive airway pressure treatment includes a cushion adapted to be positioned against the face of a patient. The cushion is configured in a gasket arrangement around an entrance to the airways of the patient. The cushion is constructed from a polyurethane foam and has a thickness of greater than about 5 mm.

Abstract: An air delivery system for providing a supply of air from a source of air at positive pressure to an interfacing structure located at the entrance to the airways of a patient includes a manifold adapted to connect with the supply of positive air pressure and at least one tube connected to the manifold and adapted to deliver the supply of air to the interfacing structure. Each tube is structured to allow movement between an open phase in which the tube allows the passage of air and a collapsed phase in which the tube is collapsed. Each tube is structured such that weight of a typical patient's head against bedding apparel is sufficient to collapse the tube from the open phase to the collapsed phase.

Abstract: A patient interface assembly includes a flexible cushion configured to sealingly engage the patient's nares and a frame with a pair of flexible extending members that extend laterally from opposite sides of the frame. The frame and the flexible cushion together form a chamber. The patient interface assembly also includes a positioning and stabilising structure configured to maintain the flexible cushion in engagement with the patient's nares. The positioning and stabilizing structure has a pair of headgear straps. Each headgear strap is connected to a respective one of the flexible extending members. The flexible extending members do not form an airflow path for the breathable gas. The headgear straps have a multi-layered structure, at least one layer being made of fabric and at least one layer being made of plastic. In addition, the at least one plastic layer is a rigidizer that adds rigidity to the respective headgear strap.

Abstract: A vent arrangement is provided to a mask or associated conduit to discharge exhaled gas from the mask to atmosphere. The vent arrangement is structured to diffuse the exhaust vent flow to produce less air jetting, thereby increasing the comfort of the patient and their bed partner. For example, the vent arrangement may include one or more grill components and/or media constructed and arranged to diffuse vent flow.

Abstract: A respiratory mask, a mould for a respiratory mask, as well as to a method for producing a respiratory mask are disclosed, in which manufacturability and usability of respiratory masks are improved. A respiratory mask is disclosed for administering a breathable gas to a patient, the respiratory mask comprising a first component formed from a flexible material and a second component formed from a material that is more rigid than the flexible material, wherein the first component is formed onto the second component by an overmoulding process.

Abstract: A respiratory mask for continuous positive airway pressure treatment includes a cushion adapted to be positioned against the face of a patient. The cushion is configured in a gasket arrangement around an entrance to the airways of the patient. The cushion is constructed from a polyurethane foam and has a thickness of greater than about 5 mm.

Abstract: A vent arrangement is provided to a mask or associated conduit to discharge exhaled gas from the mask to atmosphere. The vent arrangement is structured to diffuse the exhaust vent flow to produce less air jetting, thereby increasing the comfort of the patient and their bed partner. For example, the vent arrangement may include one or more grill components and/or media constructed and arranged to diffuse vent flow.

Abstract: An air delivery system for providing a supply of air from a source of air at positive pressure to an interfacing structure located at the entrance to the airways of a patient includes a manifold adapted to connect with the supply of positive air pressure and at least one tube connected to the manifold and adapted to deliver the supply of air to the interfacing structure. Each tube is structured to allow movement between an open phase in which the tube allows the passage of air and a collapsed phase in which the tube is collapsed. Each tube is structured such that weight of a typical patient's head against bedding apparel is sufficient to collapse the tube from the open phase to the collapsed phase.

Abstract: A respiratory system is configured to pressurize and deliver a flow of respiratory gas to a patient's airways. The respiratory system includes a cushion configured to sealingly engage the patient's face and a blower mounted to the cushion and configured to pressurize a flow of respiratory gas. An interface structure is attached to an outlet of the blower and an aperture in the cushion. The interface structure forms a gas flow path between the cushion and the blower. The gas flow path is configured to deliver the pressurized respiratory gas from the blower through the aperture in the cushion. The gas flow path is also configured to vent exhaled gas from the aperture in the cushion to atmosphere. The respiratory system also includes headgear configured to support the cushion and the blower on the patient's face.

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 respiratory system is configured to pressurize and deliver a flow of respiratory gas to a patient's airways. The respiratory system includes a cushion configured to sealingly engage the patient's face and a blower mounted to the cushion and configured to pressurize a flow of respiratory gas. An interface structure is attached to an outlet of the blower and an aperture in the cushion. The interface structure forms a gas flow path between the cushion and the blower. The gas flow path is configured to deliver the pressurized respiratory gas from the blower through the aperture in the cushion. The gas flow path is also configured to vent exhaled gas from the aperture in the cushion to atmosphere. The respiratory system also includes headgear configured to support the cushion and the blower on the patient's face.