Breathing assistance apparatus
AssigneeFisher & Paykel Healthcare Limited
InventorsGregory James Olsen, Martin Leckie, Neil Prime, Lewis George Gradon, Nicholas Charles Alan Smith, Alastair Edwin McAuley, Mark Joseph Haycock, Chris Earl Nightingale, Geoffrey Mark Shaw
Life of this patent
Estimating the term…
Abstract
A improved interface is disclosed for delivering CPAP therapy to patients. The interface 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.
Claims20
A device for delivering a supply of gases to a user comprising or including:
- a patient interface, adapted to be in fluid communication with a supply of gases, and adapted to provide a substantially sealed flow path for said flow of gases to a user in at least a correct orientation and position on a user,
- headgear adapted to attach to or around the head of a user,
- a sliding connection between to said patient interface, and
- wherein said sliding connection includes a sliding connection to said headgear.
In a CPAP system for delivering gases to a user with a pressurised source of gases, a conduit in fluid communication with said pressurised 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, 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 or including;
- a patient interface, adapted to be in fluid communication with a supply of gases, and adapted to provide a substantially sealed flow path for said flow of gases to a user in at least a correct orientation and position on a user, and
- headgear attached to the head of a user, and
- at least a partial loop adapted to pass across the face of a user restraining movement of said interface with respect to said headgear.
A mask which includes a rigid or semi rigid shell provided with a support harness for securing the mask over a user's face, and a flexible seal;
- the shell being provided with inlet means for a gas supply and a mounting for an outlet;
- the flexible seal being a push fit inside the shell and dimensioned and arranged such that when pressed gas is supplied through the inlet means, the seal is pushed outwards against the interior of the mask and against the user's face.
Dependencies are inferred from the claim text.