ERGONOMIC AND ADJUSTABLE RESPIRATORY MASK ASSEMBLY WITH FRAME
First Claim
1. A frame for a respiratory mask assembly that delivers breathable gas to a patient, the frame comprising:
- 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.
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.
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Citations
56 Claims
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1. 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 54, 55, 56)
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16. 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 surface, a rear surface, and an aperture therethrough for the introduction of breathable gas into a nasal breathing cavity, and an elbow assembly movably supported on the front surface of the base, wherein the rear surface comprises an inner wall and an outer wall defining a 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, 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 mark configured to align with an alignment mark 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 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 surface, and the inner wall extends a different distance than the outer wall. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A frame for a respiratory mask assembly that delivers breathable gas to a patient, the frame comprising:
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a substantially rigid main body, the main body comprising; a front surface and a rear surface adapted in use to face the patient, and an aperture provided therethrough for the introduction of breathable gas into a nasal breathing cavity defined by the frame; a channel extending from the rear surface of the main body, the channel being structured to receive a side wall of a cushion so to removably attach the cushion to the frame, the channel comprising; an inner wall and an outer wall spaced from and extending parallel to each other, and a channel floor extending between the inner and outer walls, wherein the outer wall defines at least a portion of the outer perimeter of the main body, the channel having a generally horizontal upper section dimensioned to be positioned over the patient'"'"'s nasal bridge region, a generally horizontal lower section that is generally parallel to the upper section, and side section to join the upper and lower sections; and wherein each of the inner and outer walls extends from the rear surface, and the inner wall extends a different distance than the outer wall. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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Specification