Breathing assistance apparatus
AssigneeFisher & Paykel Healthcare Limited
InventorsAlastair Edwin McAuley, Craig Robert Prentice, Rory Alexander Monro, Isaac Tristram Tane Mason, Nadjean Maurice Gabriel Geslain
Life of this patent
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Abstract
Breathing assistance apparatus for treating sleep apnoea can include nasal interfaces for the supply of respiratory gases, but most particularly positive pressure gases are described. The nasal interfaces may include various forms of nasal pillows or nasal plugs. Associated elements, such as manifolds or housings to hold or secure the pillows or plugs or headgear, can be included.
Claims17
1-18. (canceled)
A nasal pillow portion for use as part of a system for delivering a stream of gases to a user, the system configured to produce and deliver the stream of gases to a patient interface that is configured to deliver the stream of gases to a nare or nares of the user, the nasal pillow portion forming part of the patient interface, the nasal pillow portion comprising:
- a stalk having an upper end and a lower end, the lower end adapted to receive the stream of gases delivered to the patient interface;
- a cap connected to the upper end of the stalk, wherein the cap and the stalk form an airway for the stream of gases to flow through the nasal pillow portion to the nare of the user, the cap defining an aperture that permits the stream of gases to exit the airway, an upper surface of the cap adapted to substantially seal against the nare of the user;
- wherein the cap includes a flange portion that extends outwardly from the upper end of the stalk, and a plurality of ribs located below the flange portion and configured to provide support to the flange portion in use.
Dependencies are inferred from the claim text.