Nasal mask
AssigneeFisher & Paykel Healthcare Limited
InventorsLewis George Gradon, Nicholas Charles Alan Smith, Alastair Edwin McAuley, Mark Joseph Haycock, Chris Earl Nightingale
Life of this patent
Estimating the term…
Abstract
A improved nasal mask is disclosed for delivering CPAP therapy to patients. The nasal mask has a sliding engagement to the headgear. The sliding engagement allows substantial relative lateral movement eg: when face is distorted from sleeping on side, while still providing adequate compressive force to avoid side leakage. The sliding engagement also allows easy release from the headgear.
Claims19
A device for delivering a supply of gases to a user comprising:
- a patient interface, adapted to be in fluid communication with said supply of gases, and adapted to provide a substantially sealed flow path for said flow of gases to said user in at least a correct orientation and position on said user,
- headgear adapted to attach to or around the head of said user, and
- a sliding connection between said headgear and said patient interface when said patient interface is engaged with a face of the user.
A nasal mask for delivering gases to a user comprising:
- a body portion having an inlet, in use said inlet receiving a supply of gases,
- sealing means engaged with said body portion, and adapted to seal against the facial contours of said user, and
- engaging means adapted to in use provide a sliding engagement with a means of securement to a user when said nasal mask is engaged with a face of the user, and a compressive force on said sealing means to ensure said supply of gases is delivered to a user without significant leakage.
In a CPAP system for delivering gases to a user comprising a pressurized source of gases, a conduit in fluid communication with said pressurized source adapted to convey said gases, a patient interface in fluid communication with said conduit in use delivering said gases to said user, and headgear attaching said interface with said user, the improvement comprising that said patient interface adapted to sliding engage with said headgear when said patient interface is engaged with a face of the user, to ensure said supply of gases is delivered to a user without significant leakage.
A device for delivering a supply of gases to a user comprising:
- a patient interface, adapted to be in fluid communication with said supply of gases, and adapted to provide a substantially sealed flow path for said flow of gases to said user in at least a correct orientation and position on said user, and
- headgear including at least a partial loop adapted to engage said patient interface and pass across the face of said user.
Dependencies are inferred from the claim text.