Patent ID: 9320866
Filing Date: 2016-04-26
CPC Classification: A61M

Claim Text:
1. A mask assembly for delivering positive airway pressure to a user, the mask comprising: a nasal mask assembly comprising a base portion and a body portion connected together; the body portion comprising a first material that is substantially flexible and defining a first nasal pillow and a second nasal pillow on a proximal portion of the body portion, the first and second nasal pillows being adapted to rest in a substantially sealed manner against a user's nares in use, the body portion including a distal portion with a circumferentially extending lip disposed on the distal portion; the base portion comprising a second material that is substantially hard, the base portion comprising a proximal side facing toward the distal portion of the body portion, the proximal side connected to the distal portion of the body portion, the base portion comprising an extension lip extending distally away from the proximal portion of the body portion; a headgear arrangement comprising a central section, first and second headgear extensions and a headgear strap, the central section of the headgear arrangement being connected to the base portion with the extension lip; the first headgear extension having a distal end connected to a left peripheral side of the central portion and a proximal end disposed proximally adjacent a side of a user's left cheek in use, the first headgear extension comprising a first portion, a second portion, and a first reduced cross section portion disposed between the first and second portions; the second headgear extension having a distal end connected to a right peripheral side of the central portion and a proximal end disposed adjacent a side of a user's right cheek in use, the second headgear extension comprising a first portion, a second portion, and a second reduced cross section portion disposed between the first and second portions of the second headgear extension; the headgear strap comprising a flexible material forming a central strap portion and first and second side strap portions, the first side strap portion extending from a left end of the central strap portion and extending along a substantial portion of the first headgear extension, the second side strap portion extending from a right end of the central strap portion and extending along a substantial portion of the second headgear extension, the central portion extending around a back of a user's head in use.