A nasal assembly for delivering breathable gas to a patient includes a frame having an integrally formed first connector portion. A nozzle assembly includes a gusset or base portion and a pair of nozzles. At least one inlet conduit is structured to deliver breathable gas into the frame and nozzle as
A nasal assembly for delivering breathable gas to a patient includes a frame having an integrally formed first connector portion. A nozzle assembly includes a gusset or base portion and a pair of nozzles. At least one inlet conduit is structured to deliver breathable gas into the frame and nozzle assembly for breathing by the patient. A pair of second connector portions are removably and rotatably connected to respective first connector portions of the frame and are in communication with respective inlet conduits, e.g., directly or via angle connectors. A headgear assembly is removably connected to the pair of second connector portions and/or the angle connectors so as to maintain the frame and the nozzle assembly in a desired adjusted position on the patient's face.
대표청구항▼
1. A cushion having: a base; anda pair of nozzles, each nozzle including a head portion in the form of a truncated hollow cone having a relatively narrow tip portion to enter into the nasal passage of the patient's nose and a relatively wider portion to sealingly engage with an area about the rim of
1. A cushion having: a base; anda pair of nozzles, each nozzle including a head portion in the form of a truncated hollow cone having a relatively narrow tip portion to enter into the nasal passage of the patient's nose and a relatively wider portion to sealingly engage with an area about the rim of the nostril opening; anda flexible hollow stalk extending between the base and each said head portion to define a fluid path for delivery of pressurized gas from the base to the head portions, said hollow stalk defining a longitudinal axis that is parallel to the fluid delivery path,each said hollow stalk having a first end provided to the base, a second end provided to support the truncated hollow cone, and only a single substantially concave wall, as seen in cross section taken perpendicular to the longitudinal axis, extending from the first end to the second end, each second end having a reduced cross section with respect to a base portion of the respective truncated hollow cone, said reduced cross section being taken perpendicular to the longitudinal axis. 2. The cushion according to claim 1, wherein the base includes an upper wall from which the stalks extend and one or more side walls, the base being resiliently structured to apply a component of force for sealing with the patient. 3. The cushion according to claim 2, wherein the upper wall is structured to apply a component of force for sealing with the patient. 4. The cushion according to claim 2, wherein the side wall is structured to apply a component of force for sealing with the patient. 5. The cushion according to claim 1, wherein the stalks are resiliently structured to apply a component of force for sealing with the patient. 6. The cushion according to claim 1, wherein the component of force for sealing with the patient from the base and nozzles is individually adjustable. 7. The cushion according to claim 6, wherein the base and the nozzles are structured to provide different components of force for sealing with the patient. 8. The cushion according to claim 6, wherein the base and the nozzles are structured to provide substantially similar components of force for sealing with the patient. 9. The cushion according to claim 1, wherein the base, where the nozzles are attached, is more rigid than the nozzles. 10. The cushion according to claim 1, wherein each said relatively narrow tip portion has an aperture. 11. The cushion according to claim 1, wherein the stalk of each nozzle has an hour glass shape which at its widest diameter is less than the base portion of said truncated hollow cone. 12. The cushion according to claim 1, wherein each said nozzle is resiliently structured to apply a component of force for sealing with the patient. 13. The cushion according to claim 1, wherein said base portion of each said truncated hollow cone is attached directly to the second end of the hollow stalk, wherein a space is created between an outer edge of the base portion and the base, said space extending from the base portion to the base and positioned adjacent an outer surface of the hollow stalk. 14. The cushion according to claim 1, wherein the head portion and hollow stalk comprise a one piece construction of flexible, elastomeric material. 15. The cushion according to claim 1, wherein each said hollow stalk is non-rotatably mounted on or formed in one piece with the base. 16. A one piece silicone nozzle structure including: a base portion; anda pair of nozzles extending from and integrally formed in one piece with the base portion, the pair of nozzles being structured to sealingly engage with nasal passages of a user's nose;wherein each of the pair of nozzles has a flexible first portion integrally formed in one piece with the base portion in communication with a respective outlet opening provided in the base portion, and a second portion integrally formed in one piece with the first portion to sealingly engage with nasal passages user's nose, wherein: each said second portion is in the form of a hollow, truncated cone,each said second portion has an upper portion to seal on the underside of the nostrils and a second portion to enter into the nasal passage of the user,each said first portion has a reduced width compared to the second portion, andeach said first portion has a first end provided to the base portion and a second end provided to support the hollow, truncated cone, and wherein only a single continuous substantially concave wall, as seen in cross section, extends from the first end to the second end, each said second end having a reduced cross section compared to a base of the hollow, truncated cone, said cross section and said reduced cross section being taken perpendicular to a longitudinal axis of the first portion. 17. The nozzle structure according to claim 16, wherein the base portion shaped such that the alar angle between the nozzles ranges from 70-155°. 18. The nozzle structure according to claim 16, wherein an opening of each nozzle is in the form of an ellipse having a major axis and a minor axis. 19. The nozzle structure according to claim 16, wherein an exterior surface of each said hollow, truncated cone is substantially concave. 20. The nozzle structure according to claim 16, wherein the base portion includes a visual indicator. 21. The nozzle structure according to claim 16, wherein the single continuous substantially concave wall of the first portion at its widest diameter is less than a widest diameter of the base of the hollow, truncated cone of the second portion. 22. The nozzle structure according to claim 16, wherein a length of each second portion is about 9 mm. 23. The nozzle structure according to claim 16, wherein each said hollow, truncated cone defines a sealing zone that extends at an angle across the hollow, truncated cone. 24. The nozzle structure according to claim 23, wherein the sealing zone is defined by a border extending from the base of the hollow, truncated cone towards a point of the opposite side wall of the hollow, truncated cone which is about half of a height of the hollow, truncated cone. 25. The nozzle structure according to claim 16, wherein each said first portion is configured to act as a spring structure. 26. The nozzle structure according to claim 16, wherein each said first end transitions to the base portion along a smoothly curved radius. 27. The nozzle structure according to claim 26, wherein each said second end transitions to the base of the hollow, truncated cone along a smoothly curved radius. 28. The nozzle structure according to claim 16, wherein the base of each said hollow, truncated cone is attached directly to the second end of the first portion, wherein a space is created between an outer edge of the base of the first portion and the base, said space extending from the base portion to the base and positioned adjacent an outer surface of the first portion. 29. The nozzle structure according to claim 16, wherein the first and second portions comprise flexible, elastomeric material. 30. The nozzle structure according to claim 16, wherein the first portion is non-rotatably mounted on the base portion.
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