Mask system
First Claim
Patent Images
1. A mask system for treating sleep disordered breathing, comprising:
- a flexible shell and cushion unit including a cushion portion and a shell portion, the cushion portion having a face contacting portion adapted to form a seal with a patient'"'"'s face when engaged with the patient'"'"'s face, the face contacting portion including a nasal bridge region, a lip region and side regions extending between the nasal bridge region and the lip region, the shell portion including a front face with a centrally located aperture opposite the cushion portion, a channel formed in the shell portion adjacent the centrally located aperture, the flexible shell and cushion unit being an integral single piece of silicone defining an interior breathing chamber, the flexible shell and cushion unit including a rear flange, a plurality of front flanges and a plurality of discrete frame-receiving channels between the rear flange and the plurality of front flanges;
a rigid, generally triangularly-shaped frame with rounded lower corners, at least a part of the frame being shaped to be secured between the rear flange and the plurality of front flanges, the frame supporting the shell and cushion unit, the frame having at least one opening through which at least part of the shell portion extends with the frame secured to and positively located relative to the flexible shell and cushion unit;
a rigid ring-shaped member including an annular front flange ring and a rear flange ring with an annular groove between the front and rear flange rings, the rear flange ring received within the channel formed in the shell portion adjacent the aperture with part of the shell portion secured inside the annular groove, the front flange ring resting on an exterior surface of the front face of the shell portion;
a rotatable elbow having a first end and a second end, the first end being adapted to engage with and rotate relative to the ring-shaped member, the rotatable elbow having a vent including at least one vent orifice adapted to vent exhaled gases out of the rotatable elbow;
a swivel provided to the second end of the rotatable elbow, the swivel including a first end engaged with the rotatable elbow, and the swivel having a second end adapted to engage an air delivery conduit;
a port including a port cap adapted to cover and seal the port;
headgear attachment points formed on the frame, a first pair of the headgear attachment points being provided on a first side portion of the frame, and a second pair of the headgear attachment points being provided on a second side portion of the frame; and
headgear adapted to attach to the headgear attachment points.
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Accused Products
Abstract
A mask system for treating sleep disordered breathing, comprising headgear, a shell/cushion including a channel adjacent a front aperture, a frame, an elbow including at least one undercut on a proximal end, a retaining ring including a rear flange adapted to be retainably insertable in the channel of the shell/cushion, and a front flange adapted to retainably engage with the at least one undercut of the elbow.
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Citations
64 Claims
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1. A mask system for treating sleep disordered breathing, comprising:
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a flexible shell and cushion unit including a cushion portion and a shell portion, the cushion portion having a face contacting portion adapted to form a seal with a patient'"'"'s face when engaged with the patient'"'"'s face, the face contacting portion including a nasal bridge region, a lip region and side regions extending between the nasal bridge region and the lip region, the shell portion including a front face with a centrally located aperture opposite the cushion portion, a channel formed in the shell portion adjacent the centrally located aperture, the flexible shell and cushion unit being an integral single piece of silicone defining an interior breathing chamber, the flexible shell and cushion unit including a rear flange, a plurality of front flanges and a plurality of discrete frame-receiving channels between the rear flange and the plurality of front flanges; a rigid, generally triangularly-shaped frame with rounded lower corners, at least a part of the frame being shaped to be secured between the rear flange and the plurality of front flanges, the frame supporting the shell and cushion unit, the frame having at least one opening through which at least part of the shell portion extends with the frame secured to and positively located relative to the flexible shell and cushion unit; a rigid ring-shaped member including an annular front flange ring and a rear flange ring with an annular groove between the front and rear flange rings, the rear flange ring received within the channel formed in the shell portion adjacent the aperture with part of the shell portion secured inside the annular groove, the front flange ring resting on an exterior surface of the front face of the shell portion; a rotatable elbow having a first end and a second end, the first end being adapted to engage with and rotate relative to the ring-shaped member, the rotatable elbow having a vent including at least one vent orifice adapted to vent exhaled gases out of the rotatable elbow; a swivel provided to the second end of the rotatable elbow, the swivel including a first end engaged with the rotatable elbow, and the swivel having a second end adapted to engage an air delivery conduit; a port including a port cap adapted to cover and seal the port; headgear attachment points formed on the frame, a first pair of the headgear attachment points being provided on a first side portion of the frame, and a second pair of the headgear attachment points being provided on a second side portion of the frame; and headgear adapted to attach to the headgear attachment points. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A mask system for treating sleep disordered breathing, comprising:
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a flexible shell and cushion unit including a cushion portion configured to form a seal with a patient when engaged with the patient'"'"'s face, and including a shell portion, the shell portion including a front face with a centrally located aperture, the flexible shell and cushion unit being an integral single piece of silicone defining an interior breathing chamber, the flexible shell and cushion unit including a rear flange, a plurality of front flanges and a plurality of discrete frame-receiving channels between the rear flange and the plurality of front flanges; a rigid frame including at least one portion shaped to fit into and be secured within the plurality of discrete frame-receiving channels, the frame supporting the shell and cushion unit; a rigid ring-shaped member with an annular front flange ring and a rear flange ring with an annular groove between the front and rear flange rings, the annular front flange ring and the rear flange ring adapted to engage with the centrally located aperture of the shell portion; a rotatable elbow having a first end and a second end, the first end adapted to engage with the ring-shaped member; and headgear adapted to attach to the frame. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A mask system for treating sleep disordered breathing, comprising:
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a flexible shell and cushion unit including a cushion portion configured to form a seal with a patient when engaged with the patient'"'"'s face, and including a shell portion, the shell portion including a front face with a centrally located aperture, the flexible shell and cushion unit being an integral single piece of silicone defining a breathing chamber, the flexible shell and cushion unit including a rear flange and a plurality of front flanges, the plurality of front flanges being positioned on opposite sides of a front of the shell portion; a rigid frame secured to and positively located relative to the flexible shell and cushion unit such that the frame remains in position between the rear flange and each of the plurality of front flanges; a rigid ring-shaped member including a rear end positioned at least partially within the centrally located aperture of the shell portion to communicate with the interior of the breathing chamber; a rotatable elbow having a first end and a second end, the first end adapted to engage with the ring-shaped member; headgear attachment points formed on the frame, the headgear attachment points being provided on a first side portion and a second side portion of the frame; and headgear adapted to attach to the headgear attachment points. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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47. A mask system for treating sleep disordered breathing, comprising:
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headgear; a flexible shell and cushion unit including a cushion portion configured to form a seal with a patient when engaged with the patient'"'"'s face, and including a shell portion having a centrally located aperture, the shell portion having at least one flange, the flexible shell and cushion unit being an integral single piece of silicone defining a breathing chamber; a rigid frame supporting the shell and cushion unit, the frame being generally structured and configured so that when the frame is secured to the flexible shell and cushion unit, the frame remains in position adjacent to the at least one flange of the shell portion; a rigid ring-shaped member including a rear end positioned at least partially within the centrally located aperture of the shell portion to communicate with the interior of the breathing chamber; and an elbow engaging with the ring-shaped member. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64)
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Specification