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US 2014/0230813 A1Published application
Breathing assistance apparatus
AssigneeFisher & Paykel Healthcare Limited
InventorsAlastair Edwin McAuley, Christopher Earl Nightingale, Lewis George Gradon, Mark Joseph Haycock, Nicholas Charles Alan Smith, Daniel Mahon, Fiona Elizabeth Cresswell
Life of this patent
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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.
Claims15
1-20. (canceled)
A device for delivering a supply of gases to a user comprising:
- an elbow connector adapted to connect a patient interface with a supply of gases, the elbow connector comprising:
- a hollow body having an inlet and an outlet, the hollow body defining an air flow channel between the inlet and the outlet, the inlet being configured to be in fluid communication with the supply of gases in use and the outlet being configured to be in fluid communication with the patient interface in use;
- and
- an outlet aperture in the hollow body configured to allow gases exhaled by the user to vent to atmosphere from the air flow channel;
- and
- a flexible sleeve having a first end and a second end, the flexible sleeve being disposed over top of a portion of the elbow connector, the flexible sleeve comprising at least one outlet vent spaced apart from, but in fluid communication with, the outlet aperture so that gases exhaled by the user pass from the air flow channel, through the outlet aperture and through the at least one outlet vent to atmosphere.
3 more elements
A device for delivering a supply of gases to a user, comprising:
- an elbow connector configured to connect a patient interface with a supply of gases, a sidewall of the elbow connector comprising an outlet aperture configured to allow gases exhaled by the user to vent to atmosphere;
- and
- an outlet vent configured to overlie the outlet aperture on the elbow connector such that the outlet vent is aligned with the outlet aperture.
An elbow connector adapted to connect a patient interface with a supply of gases, the elbow connector comprising:
- a hollow body having an inlet and an outlet, the hollow body defining an air flow channel, the inlet configured to be in fluid communication with the supply of gases in use and the outlet configured to be in fluid communication with the patient interface in use;
- a wall of the hollow body defining the air flow channel, the wall being cylindrical, the cylindrical wall having a proximal portion closest to a user and a distal portion furthest from the user, the cylindrical wall also having a curved portion that bends in a first direction such that a length of the distal portion is longer than a length of the proximal portion, the distal portion comprising a flexible thin portion along the curved portion of the cylindrical such that the flexible thin portion is curved in two dimensions;
- and
- the thin portion comprising a plurality of apertures configured to externally vent gases exhaled by the user.
1 more element
Dependencies are inferred from the claim text.