ERGONOMIC AND ADJUSTABLE RESPIRATORY MASK ASSEMBLY WITH FRAME
6 Assignments
0 Petitions
Accused Products
Abstract
A respiratory mask assembly for delivering breathable gas to a patient includes a frame having a front surface and a rear surface, opposite the front surface, and adapted in use to face the patient. The frame defines an inner wall and an outer wall extending from the rear surface, the inner and outer walls being spaced to define a channel therebetween. A cushion is removably attachable to the frame such that the cushion and frame are repeatably engagable with and disengagable from one another. The cushion includes a side wall to be inserted into the channel of the frame, the side wall having a first interlocking surface that engages a second interlocking surface provided in the channel when the cushion and frame are engaged with one another. The first and second interlocking surfaces interlock with one another to removably attach the cushion to the frame.
18 Citations
103 Claims
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1-56. -56. (canceled)
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57. A frame for a respiratory mask assembly that delivers breathable gas to a patient, the frame comprising:
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a main body having a front surface and a rear surface adapted in use to face the patient, the main body having an aperture extending through the front surface for the introduction of breathable gas into a nasal breathing cavity defined by the frame; and an inner wall and an outer wall each extending rearwardly from the rear surface, the inner and outer walls being spaced to define a channel therebetween that is structured to receive a side wall of a cushion such that the cushion may be repeatedly attached to and detached from the frame, wherein the main body and the inner and outer walls are formed in one piece and the inner and outer walls are spaced in parallel, wherein a length of the inner wall is different than a length of the outer wall such that the inner wall protrudes away from the rear surface a distance that is different than a distance the outer wall protrudes away from the rear surface, wherein at least a portion of the channel is shaped and dimensioned to generally follow a contour of the patient'"'"'s face, wherein the channel has a generally triangular shape, and wherein the inner and outer walls are adapted to receive the side wall when attached to the frame. - View Dependent Claims (58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71)
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72. A frame for a respiratory mask assembly that delivers breathable gas to a patient, the frame comprising:
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a base having a front side, a rear side, and an aperture therethrough for the introduction of breathable gas into a nasal breathing cavity; an elbow assembly movably supported on the front side of the base; and an inner wall and an outer wall having a generally triangular or trapezoidal channel therebetween that is structured to receive a side wall of a cushion so as to allow repeated attaching and detaching of the cushion and the base, at least a portion of the channel being shaped and dimensioned to generally follow a contour of the patient'"'"'s face, wherein the inner wall includes a protrusion configured to contact the side wall of the cushion so as to removably attach the cushion to the base; the channel has a width in the range of about 2-10 mm; the base comprises an alignment feature configured to align with an alignment feature on the cushion; the cushion can be attached to the frame to substantially simultaneously retain the cushion to the frame and form a seal with the frame; and a depth of the channel is selected such that at least a portion of an end of the side wall of the cushion may contact a bottom surface of the channel; and wherein each of the inner and outer walls extends from the rear side, and the inner wall extends a different distance than the outer wall, and wherein the inner and outer walls are adapted to receive the side wall when attached to the frame. - View Dependent Claims (73, 74, 75)
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76. A mask assembly comprising:
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a mask including a seal to contact a user'"'"'s nose; a quick-release elbow to deliver pressurized gas to the mask; and rigidized support structure to support the mask on the user'"'"'s head, the support structure including an upper arm extending along the temple of the user and a lower arm extending below the ear of the user, the upper arm including a slot to receive a headgear strap.
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77. A nasal mask assembly for nasal CPAP therapy of a patient, comprising:
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a frame with a central aperture; a nasal cushion permanently attached to the frame; an elbow with a flexible quick release mechanism adapted to connect to the frame at the central aperture; and a headgear assembly comprising; a strap assembly including a pair of relatively flexible straps having a relatively soft fabric and foam material construction, and a yoke made of a relatively rigid material compared to the strap material and having a degree of flexibility in one direction such that variations in patient physiology can be accommodated in use, said yoke being attached to the pair of straps and the frame, wherein the nasal mask assembly is not provided with a chin strap. - View Dependent Claims (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)
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Specification