Ergonomic and adjustable respiratory mask assembly with headgear assembly
DC CAFCFirst Claim
1. A respiratory mask assembly for delivering breathable gas to a patient, comprising:
- a frame having a main body and a side frame member provided on each lateral side of the main body, each side frame member including an integrally formed first connector portion, anda headgear assembly removably attachable to the frame, the headgear assembly having a second connector portion adapted to be removably coupled with the first connector portion provided on the frame,wherein one of the first connector portion and the second connector portion includes at least one tooth and the other of the first connector portion and the second connector portion includes a plurality of teeth configured for rotationally locking engagement with the at least one tooth in a plurality of different rotationally locked positions in which the first and second connector portions may not rotate relative to one another, such that the headgear assembly is rotationally adjustable with respect to the frame.
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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.
169 Citations
73 Claims
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1. A respiratory mask assembly for delivering breathable gas to a patient, comprising:
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a frame having a main body and a side frame member provided on each lateral side of the main body, each side frame member including an integrally formed first connector portion, and a headgear assembly removably attachable to the frame, the headgear assembly having a second connector portion adapted to be removably coupled with the first connector portion provided on the frame, wherein one of the first connector portion and the second connector portion includes at least one tooth and the other of the first connector portion and the second connector portion includes a plurality of teeth configured for rotationally locking engagement with the at least one tooth in a plurality of different rotationally locked positions in which the first and second connector portions may not rotate relative to one another, such that the headgear assembly is rotationally adjustable with respect to the frame.
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2. A respiratory mask assembly for delivering breathable gas to a patient, comprising:
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a frame having a main body and a side frame member provided on each lateral side of the main body, each side frame member including an integrally formed first connector portion, and a headgear assembly removably attachable to the frame, the headgear assembly having a second connector portion adapted to be removably coupled with the first connector portion provided on the frame, wherein one of the first connector portion and the second connector portion includes at least one engagement means and the other of the first connector portion and the second connector portion includes a plurality of engagement means configured for rotationally locking engagement with the at least one engagement means in a plurality of different rotationally locked positions in which the first and second connector portions may not rotate relative to one another, and wherein either the at least one engagement means is a recess and the plurality of engagement means are a plurality of teeth or the at least one engagement means is a tooth and the plurality of engagement means are recesses, such that the headgear assembly is rotationally adjustable with respect to the frame.
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3. A respiratory mask assembly for delivering breathable gas to a patient, comprising:
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a frame having a main body and a side frame member provided on each lateral side of the main body, each side frame member including an integrally formed first connector portion, and a headgear assembly removably attachable to the frame, the headgear assembly having a second connector portion adapted to be removably coupled with the first connector portion provided on the frame, wherein the first connector portion is one tooth and the second connector portion comprises a plurality of recesses that lie on a curve, the plurality of recesses being configured for rotationally locking engagement with the tooth in a plurality of different rotationally locked positions in which the first and second connector portions may not rotate relative to one another, such that the headgear assembly is rotationally adjustable with respect to the frame.
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4. A respiratory mask assembly for delivering breathable gas to a patient, comprising:
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a frame having a main body and a side frame member provided on each lateral side of the main body, each side frame member including an integrally formed first connector portion, and a headgear assembly removably attachable to the frame, wherein the headgear assembly has a second connector portion adapted to connect to the first connector portion via a bayonet-type connection thereby providing a releasable coupling between the headgear and frame, said first and second connector portions being lockable relative to one another in at least two predetermined rotationally locked positions in which the first and second connector portions may not rotate relative to one another.
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5. A patient interface device for delivering breathable gas to a patient, comprising:
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a frame assembly having a curved main body securable to the face of the patient via a cushion, said frame assembly having an end portion provided on each end of the main body; at least one first connector portion provided to each said end portion of the frame assembly and including a substantially cylindrical protrusion extending from the end portion and a plurality of retaining tabs extending radially from the substantially cylindrical protrusion; a headgear assembly including at least one strap portion, said headgear assembly being structured to support the frame assembly; and at least one second connector portion including a main receptacle and a plurality of slots, each of the slots being contiguous with the receptacle and extending radially from the receptacle, wherein; the substantially cylindrical protrusion and the plurality of retaining tabs of the first connector portion, respectively, are axially insertable into the receptacle and the plurality of slots of the second connector portion, and the first and second connector portions are rotatable relative to one another to selectively couple the first and second connector portions. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A patient interface device for delivering breathable gas to a patient, comprising:
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a frame assembly having a curved main body securable to the face of the patient via a cushion and having two ends each including a frame member, each said frame member including a first connector portion; a headgear assembly removably coupled to the frame assembly; and a second connector portion adapted to be removably coupled with the first connector portion provided on the frame assembly, wherein; the first and second connector portions are adjustably rotatable relative to one another in discrete steps such that the second connector portion is selectively engagable with the first connector portion in at least three predetermined positions within a range of patient usable positions, and at least one of said first and second connector portions is structured to be rotatably positioned in a decoupling position in which the connector portion may be decoupled, the decoupling position being outside the range of patient usable positions. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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27. A patient interface device for delivering breathable gas to a patient, comprising:
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a frame having a main body and a side frame member provided on each lateral side of the main body, each side frame member including an integrally formed first connector portion; and a headgear assembly removably attachable to the frame, the headgear assembly having a second connector portion adapted to be removably coupled with the first connector portion provided on the frame, wherein the first connector portion includes at least one locking clip receiver assembly having a slot and the second connector portion includes a locking tab, the locking tab being configured to be inserted into the slot and interlocked with a locking flange provided in the slot to removably attach the headgear assembly to the frame. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A patient interface device for delivering breathable gas to a patient, comprising:
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a frame having a main body and a side frame member provided on each lateral side of the main body, each side frame member including an integrally formed first connector portion; a headgear assembly removably attachable to the frame, the headgear assembly having a second connector portion adapted to be removably coupled with the first connector portion provided on the frame; and a yoke attached to at least a front portion of the headgear assembly, the front portion having a front end, the yoke extending from the front end and along a major portion of the front portion and having a shape matching a shape of at least a portion of the front strap end, the yoke being made of a material adding some degree of rigidity to the front strap end. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46)
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47. A patient interface device for delivering breathable gas to a patient, comprising:
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a frame having a central portion; a sealing member supported by the central portion of the frame; and a support structure to support the sealing member relative to the patient'"'"'s head in use, the support structure including one or more headgear straps made of soft and flexible material and a stabilizing member extending from the one or more headgear straps towards the frame, the stabilizing member including a relatively rigid plastic layer and a relatively soft and flexible foam and fabric layer having a shape that generally matches a shape of the relatively rigid plastic layer, the relatively soft and flexible foam and fabric layer being shaped and constructed so as to be positioned between the relatively rigid plastic layer and the patient'"'"'s cheek region in use such that in an operative position, after the patient interface has been donned by the patient, the relatively soft and flexible foam and fabric layer rests across the patient'"'"'s cheek thereby reducing the opportunity for contact between the patient and the relatively rigid plastic layer, the relatively rigid plastic layer being made of a material adding some degree of rigidity to the relatively soft and flexible foam and fabric layer, the stabilizing member having a relatively horizontal component adjacent the frame and a relatively vertical component continuing from said relatively horizontal component. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61)
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62. A patient interface device for delivering breathable gas to a patient, comprising:
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a frame having a central portion; a sealing member supported by the central portion of the frame; and a support structure to support the sealing member relative to the patient'"'"'s head in use, the support structure including one or more headgear straps made of soft and flexible material and a stabilizing member extending from the one or more headgear straps towards the frame, the stabilizing member having at least one rigidized portion to generally maintain a contoured shape of at least a portion of the support structure such that the support structure extends from the frame in a first direction along at least a portion of the patient'"'"'s cheek, in use, and is upwardly redirected in a second direction generally towards the patient'"'"'s temple, in use, while avoiding obstruction of the patient'"'"'s field of view and without requiring a chin strap or a forehead support, wherein the rigidized portion includes a plastic layer and a fabric layer attached to one another via stitching. - View Dependent Claims (63, 64, 65, 66, 67, 68, 69, 70, 71)
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72. A patient interface device for delivering breathable gas to a patient, comprising:
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a frame having a central portion; a sealing member supported by the central portion of the frame; and a support structure to support the sealing member relative to the patient'"'"'s head in use, the support structure including one or more headgear straps made of soft and flexible material and a stabilizing member extending from the one or more headgear straps towards the frame, the stabilizing member having at least one rigidized portion to generally maintain a contoured shape of at least a portion of the support structure such that the support structure extends from the frame in a first direction along at least a portion of the patient'"'"'s cheek, in use, and is upwardly redirected in a second direction generally towards the patient'"'"'s temple, in use, while avoiding obstruction of the patient'"'"'s field of view and without requiring a chin strap or a forehead support, wherein the stabilizing member has different flexibilities in different directions.
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73. A patient interface device for delivering breathable gas to a patient, comprising:
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a frame having a central portion; a sealing member supported by the central portion of the frame; and a support structure to support the sealing member relative to the patient'"'"'s head in use, the support structure including one or more headgear straps made of soft and flexible material and a stabilizing member extending from the one or more headgear straps towards the frame, the stabilizing member having at least one rigidized portion to generally maintain a contoured shape of at least a portion of the support structure such that the support structure extends from the frame in a first direction along at least a portion of the patient'"'"'s cheek, in use, and is upwardly redirected in a second direction generally towards the patient'"'"'s temple, in use, while avoiding obstruction of the patient'"'"'s field of view and without requiring a chin strap or a forehead support, wherein the stabilizing member has a first flexibility in one direction and a second flexibility in another direction, orthogonal to the one direction.
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Specification