Breathing assistance apparatus
DCFirst Claim
Patent Images
1. A patient interface comprising:
- a mask assembly having;
a mask body including two nasal pillows extending from it, which in use rest in a substantially sealed manner against the nares of a user, the mask body sized and shaped to leave the mouth of the user uncovered by the mask body when in use;
a ring engaged with the mask body;
a plane substantially bisecting the ring, each of the two nasal pillows positioned on opposite sides of the plane;
an elbow rotatably engaged with the ring, the ring forming a socket into which a portion of the elbow fits to facilitate the rotatable engagement between the elbow and the ring, the elbow comprising a plurality of vent holes; and
a tube or conduit extending from the elbow; and
a headgear assembly having;
two side straps that pass down the cheeks of the user to secure the mask body to a face of the user;
a top strap including a buckle configured to facilitate length adjustment of the top strap; and
a back strap adjustably connected to at least one of the top strap and the two side straps;
wherein the two side straps are configured to connect and disconnect with the mask assembly while the elbow remains rotatably engaged with the ring and the ring remains engaged with the mask body wherein the mask assembly is configured to connect to only the two side straps; and
wherein the top strap connects only with one or more of the side straps and the back strap.
1 Assignment
Litigations
2 Petitions
Accused Products
Abstract
Headgear for use with a respiratory mask is described. The headgear comprises a continuous and substantially curved elongate member extending in use below a user'"'"'s nose and at least two headgear straps capable of attachment to the ends of the elongate member. A mask attachment on the elongate member is disposed to sit below or on one of said user'"'"'s nose, mouth, upper lip and an inlet to the mask. The attachment is capable of receiving the mask.
165 Citations
29 Claims
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1. A patient interface comprising:
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a mask assembly having; a mask body including two nasal pillows extending from it, which in use rest in a substantially sealed manner against the nares of a user, the mask body sized and shaped to leave the mouth of the user uncovered by the mask body when in use; a ring engaged with the mask body; a plane substantially bisecting the ring, each of the two nasal pillows positioned on opposite sides of the plane; an elbow rotatably engaged with the ring, the ring forming a socket into which a portion of the elbow fits to facilitate the rotatable engagement between the elbow and the ring, the elbow comprising a plurality of vent holes; and a tube or conduit extending from the elbow; and a headgear assembly having; two side straps that pass down the cheeks of the user to secure the mask body to a face of the user; a top strap including a buckle configured to facilitate length adjustment of the top strap; and a back strap adjustably connected to at least one of the top strap and the two side straps; wherein the two side straps are configured to connect and disconnect with the mask assembly while the elbow remains rotatably engaged with the ring and the ring remains engaged with the mask body wherein the mask assembly is configured to connect to only the two side straps; and wherein the top strap connects only with one or more of the side straps and the back strap. - View Dependent Claims (2, 3, 4, 5, 6, 7, 17, 18, 19, 24, 25)
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8. A patient interface comprising:
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a mask assembly having a mask body, the mask body comprising a substantially flexible elastomeric material, the mask body comprising a first nasal pillow and a second nasal pillow, the first nasal pillow and the second nasal pillow being angled toward one another, the first nasal pillow comprising a first generally conical portion and a first generally cylindrical portion, the second nasal pillow comprising a second generally conical portion and a second generally cylindrical portion, the first nasal pillow comprising a first outlet opening and the second nasal pillow comprising a second outlet opening, the mask body also comprising a mask body inlet opening, the mask body inlet opening being spaced apart from the first outlet opening and the second outlet opening, the mask body sized and shaped to leave the mouth of a user uncovered by the mask body when in use, the mask body inlet opening comprising a generally circular opening into the mask body the mask assembly having a ring-like connector releasably connected to the mask body inlet, wherein a plane bisects the ring-like connector and the first nasal pillow is located on a side of the plane opposite the second nasal pillow; a tube assembly configured to deliver airflow to the mask body, the tube assembly comprising a flexible conduit, the flexible conduit comprising a first end and a second end, the first end of the flexible conduit comprising a connector, the second end of the flexible conduit comprising an elbow, the elbow comprising a wall, the wall comprising a vent, the vent comprising a plurality of holes extending through the wall of the elbow, the ring-like connector end being secured around an outer portion of the elbow, the elbow and the mask body being connected at least in part by the ring-like connector end such that airflow from the tube assembly can be directed from the elbow through the generally circular opening of the mask body and into the mask body, the elbow and the mask body being capable of rotating relative to each other; and a headgear assembly configured to secure the mask body to a face of the user, the headgear assembly comprising a first side strap and a second side strap, a top strap being connected to the first side strap and the second side strap, the top strap including buckle configured to adjust a length of the top strap, and a back strap adjustably connected to at least one of the top strap, the first side strap, and the second side strap; wherein the first side strap and the second side strap are configured to connect and disconnect with the mask assembly while the elbow is connected with the mask body, wherein the mask assembly is configured to connect to only two side straps, and wherein top strap connects only with one or more of the first side strap, the second side strap, and the back strap. - View Dependent Claims (20, 21, 26, 27)
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9. A patient interface comprising:
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a mask assembly having; a mask body comprising a molded elastomeric material, the mask body comprising two nasal pillows and a lip, the two nasal pillows, in use, resting in a substantially sealed manner against corresponding nares of a user, the mask body sized and shaped to leave the mouth of a user uncovered by the mask body when in use; a ring of a hard plastic material engaged with the lip of the mask body; a plane substantially bisecting the ring, each of the two nasal pillows positioned on opposite sides of the plane; an elbow rotatably engaged with the ring such that a portion of the elbow is received within the ring, the elbow comprising a wall, a vent comprising a plurality of holes in the wall of the elbow; and a tube or conduit extending from the elbow; and a headgear assembly having; a top strap removably connected to side straps, the side straps adapted to pass down the cheeks of the user, the elbow being able to swivel in the ring such that the tube or conduit can be positioned adjacent to either side strap or can fall freely; and a back strap adjustably connected with one or more of the top strap and the side straps; wherein the side straps are configured to connect and disconnect with the mask body while elbow is rotatably engaged with the ring and the ring is engaged with the mask body wherein the mask assembly is configured to connect to only two side straps, and wherein the top strap connects only with one or more of the side straps and the back strap. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 22, 23, 28, 29)
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Specification