Breathing assistance apparatus
AssigneeFisher & Paykel Health Care Limited
InventorsLewis George Gradon, Nicholas Charles Alan Smith, Alastair Edwin McAuley, Mark Joseph Haycock, Chris Earl Nightingale, Daniel Mahon
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Abstract
A CPAP system for supplying humidified gases to a user is disclosed in which various interfaces are described for gas delivery. A mask cushion including a deformable cushion and thin sheath is described. A forehead rest with a horizontal pivot that is attached to the mask is disclosed. An outlet vent to reduce the noise from exhausted carbon dioxide is described. A mouthpiece is also described with an outlet diffuser including Heat Moisture Exchanger Material.
Claims10
A device for delivering a supply of gases to a user comprising:
- a hollow body including a gases inlet and gases delivery aperture, said gases inlet in use in fluid communication with said supply of gases,
- a resilient sealing pad adapted to engaged around or adjacent to the periphery of said gases delivery aperture, and
- a flexible sealing lip adapted to engaged around or adjacent to the periphery of said gases delivery aperture between said resilient sealing pad and a user, and significantly higher in density than said resilient sealing pad,
- said resilient sealing pad and said flexible sealing lip each including at least a portion shaped to approximate the facial contours of a user, said resilient sealing pad adapted to deform substantially independently of said flexible sealing lip.
A device for delivering a supply of gases to a user comprising:
- a hollow body including a gases inlet and gases delivery aperture, said gases inlet in use in fluid communication with said supply of gases,
- a resilient sealing pad adapted to engage around or adjacent to the periphery of said gases delivery aperture, and
- a flexible sealing lip adapted to engage around or adjacent to the periphery of said gases delivery aperture between said resilient sealing paid and a user,
- said resilient sealing pad and said flexible sealing lip each including at least a portion shaped to approximate the facial contour of a user, said resilient sealing pad adapted to deform substantially independently of said flexible sealing lip.
Dependencies are inferred from the claim text.