Ergonomic and adjustable respiratory mask assembly with headgear assembly
First Claim
Patent Images
1. A respiratory mask assembly for delivering gas to a person, comprising:
- a rigid shell having an aperture;
a plurality of resilient silicone cushions, each cushion sized and configured to be permanently attached to the rigid shell so as to form a co-molded unit defining a breathing chamber, each resilient silicone cushion being adapted to seal against a face of the person, each cushion having a main body connecting side that is similar to other cushions of the plurality of resilient silicone cushions and a face contacting side that differs from the other cushions in regard to at least one parameter; and
a swivel elbow snap-fitted to the rigid shell in a releasable manner, thereby positioning the elbow in fluid communication with the breathing chamber, the elbow including a first end and a second end, the first end being received within the aperture of the rigid shell.
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Accused Products
Abstract
A respiratory mask assembly for delivering breathable gas to a patient includes a frame having a main body and a side frame member provided on each lateral side of the main body. Each side frame member includes an integrally formed first connector portion. A headgear assembly is removably attachable to the frame. The headgear assembly has a second connector portion adapted to be removably coupled with the first connector portion provided on the frame. The second connector portion is manually movable to a releasing position to detach the headgear assembly from the frame. The headgear assembly is rotationally adjustable with respect to the frame.
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Citations
38 Claims
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1. A respiratory mask assembly for delivering gas to a person, comprising:
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a rigid shell having an aperture; a plurality of resilient silicone cushions, each cushion sized and configured to be permanently attached to the rigid shell so as to form a co-molded unit defining a breathing chamber, each resilient silicone cushion being adapted to seal against a face of the person, each cushion having a main body connecting side that is similar to other cushions of the plurality of resilient silicone cushions and a face contacting side that differs from the other cushions in regard to at least one parameter; and a swivel elbow snap-fitted to the rigid shell in a releasable manner, thereby positioning the elbow in fluid communication with the breathing chamber, the elbow including a first end and a second end, the first end being received within the aperture of the rigid shell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A respiratory mask assembly for delivering gas to a person, comprising:
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a rigid shell having an aperture; a plurality of resilient silicone cushions, each cushion configured to be permanently attached to the rigid shell to form a co-molded unit including a breathing chamber, each resilient silicone cushion being adapted to seal against a face of the person; and a swivel elbow snap-fitted to the rigid shell in a releasable manner, thereby positioning the elbow in fluid communication with the breathing chamber, the elbow including a first end and a second end, opposite the first end, wherein; the elbow includes at least one portion that flexes to allow engagement between the elbow and the shell, during insertion of the first end of the elbow into the aperture, and snap-fitting engagement between the elbow and the shell results in an audible noise thereby providing a signal to the person that the elbow has been securely attached to the shell. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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23. A mask system for delivering CPAP therapy to a patient at a pressure of 4 to 20 cm H2O to a patient, comprising:
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a plurality of cushions, each cushion having a connecting side that is similar to other cushions of the plurality of cushions and a face contacting side that differs from the other cushions in regard to at least one parameter; and a frame assembly configured to separately engage the connecting side of each cushion to form a permanent attachment thereto, the frame assembly including; i. a front surface; ii. a rear surface adapted to face the patient; iii. a circular flange defining an aperture through the front surface for the introduction of breathable gas into a breathing cavity at least partly defined by a respective one of the plurality of cushions extending from the rear surface; and iv. an elbow assembly swivelably coupled to the front surface, the elbow assembly including a swivel elbow, wherein the swivel elbow includes a mating portion that is releasably engagable with the flange and rotatable relative to the flange by inserting an end portion of the elbow through the aperture and pressing the front surface and the elbow towards one another. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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31. A mask system for use in the delivery of non-invasive positive pressure ventilation and for nasal continuous positive airway pressure therapy of sleep disordered breathing conditions including obstructive sleep apnea, the mask system comprising:
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a frame; headgear connectable to the frame; a swivel elbow connectable to the frame; and a plurality of cushions, each cushion including a membrane having an inner edge which defines an aperture, wherein; each cushion is connectable with the frame via a respective similar frame contacting side, each cushion has a respective different face contacting side, each cushion is configured to accommodate a different patient population, and each respective aperture of the plurality of cushions has a different base width. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38)
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Specification