Respiratory mask
First Claim
1. A patient interface system for delivering breathable gas to a patient, comprising:
- a flexible patient interface structure configured to interface with and deliver air to a nose of the patient, the patient interface structure comprising cylindrical protrusions extending from respective opposite sides of the patient interface structure, the cylindrical protrusions being dimensioned and configured to be adjacent the patient'"'"'s nares when the flexible patient interface structure is engaged with the patient'"'"'s face;
a frame configured to support the patient interface structure, the frame comprising a pair of cylinders, each cylinder having an inner circumferential surface configured to receive a respective cylindrical protrusion of the patient interface structure;
headgear arranged for releasable attachment to the frame; and
an air delivery tube connected to either one of the cylindrical protrusions, the air delivery tube being configured to be assembled to the cylindrical protrusion in an assembly direction,wherein each of the cylindrical protrusions of the flexible patient interface structure comprises a shoulder having a diameter larger than a diameter of each of said cylinders of the frame, each of the shoulders being configured to prevent movement of the respective cylindrical protrusion relative to the corresponding cylinder in the assembly direction of the air delivery tube when the air delivery tube is assembled to the respective cylindrical protrusion.
6 Assignments
0 Petitions
Accused Products
Abstract
A respiratory mask assembly for use with a patient, and that is suited for use with children ranging in age from about 2-7 years, includes a flexible patient interface structure arranged to interface with and deliver air to the patient'"'"'s nose, the patient interface structure including cylindrical protrusions extending from respective opposite sides of the patient interface structure adjacent the patient'"'"'s nares; a frame configured to support the patient interface structure, the frame including a pair of cylinders, each cylinder configured to receive a respective cylindrical protrusion of the patient interface structure; headgear arranged for releasable attachment to the frame; an air delivery tube connected to either one of the cylindrical protrusions; and a plug connected to the other one of the cylindrical protrusions.
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Citations
128 Claims
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1. A patient interface system for delivering breathable gas to a patient, comprising:
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a flexible patient interface structure configured to interface with and deliver air to a nose of the patient, the patient interface structure comprising cylindrical protrusions extending from respective opposite sides of the patient interface structure, the cylindrical protrusions being dimensioned and configured to be adjacent the patient'"'"'s nares when the flexible patient interface structure is engaged with the patient'"'"'s face; a frame configured to support the patient interface structure, the frame comprising a pair of cylinders, each cylinder having an inner circumferential surface configured to receive a respective cylindrical protrusion of the patient interface structure; headgear arranged for releasable attachment to the frame; and an air delivery tube connected to either one of the cylindrical protrusions, the air delivery tube being configured to be assembled to the cylindrical protrusion in an assembly direction, wherein each of the cylindrical protrusions of the flexible patient interface structure comprises a shoulder having a diameter larger than a diameter of each of said cylinders of the frame, each of the shoulders being configured to prevent movement of the respective cylindrical protrusion relative to the corresponding cylinder in the assembly direction of the air delivery tube when the air delivery tube is assembled to the respective cylindrical protrusion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117)
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118. A headgear for use with a patient interface system, comprising:
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a pair of side straps, each side strap extending from a region adjacent a wing portion of a patient interface frame and configured to extend along the patient'"'"'s cheek to above the patient'"'"'s ear when the patient interface system is engaged with the patient'"'"'s face; a pair of top straps, each top strap extending from a respective side strap and configured to extend at least to a top of the patient'"'"'s head; a pair of upper rear straps, each upper rear strap extending from a respective side strap and configured to extend at least to a back of the patient'"'"'s head; a pair of reinforcing structures, each reinforcing structure having a forward finger extending from a respective wing portion of the frame and configured to extend generally along the patient'"'"'s cheek when the patient interface system is engaged with the patient'"'"'s face, an upper finger extending from the forward finger and configured to extend to above the patient'"'"'s ear, and a lower finger extending from the forward finger and configured to extend to below the patient'"'"'s ear; a lower rear strap connected at each end to a respective lower finger of a respective reinforcing structure; and a quick release buckle comprising a tab, the quick release buckle being configured to connect one end of the lower rear strap to a respective lower finger and release the lower rear strap from the respective lower finger when a pulling force is applied to the tab, wherein the quick release buckle is configured so that the pulling force causes the quick release buckle to move directly from a secured position to a fully released position, wherein the quick release buckle is in the secured position when the lower rear strap is secured to the respective lower finger, wherein the quick release buckle is in the fully released position when the lower rear strap is fully removed from the respective lower finger, wherein the quick release buckle further comprises a hook that is configured to connect the lower rear strap to the respective lower finger of a respective reinforcing structure, and wherein the hook is configured so that a predetermined amount of tension in the lower rear strap bends the hook enough to release the hook from the respective lower finger. - View Dependent Claims (119, 120, 121, 122, 123, 124, 125, 126, 127, 128)
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Specification