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US 10,376,666 B2Granted
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
Estimating the term…
Abstract
Breathing assistance apparatus for treating sleep apnoea are described. More specifically, nasal interface 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 are also disclosed.
Claims22
A patient interface for supplying the flow of respiratory gases to a user comprising:
- a gasket portion arranged to receive the flow of respiratory gases;
- a pair of pillow portions connected to and extending from the gasket portion, the pillow portions arranged to receive the flow of respiratory gases from the gasket portion and provide the flow of respiratory gases to the user;
- each pillow portion comprising a stalk and a cap section;
- a base of the stalk connected to the gasket portion and the cap section connected to an upper end of the stalk;
- the cap section comprising an inner cap and an outer cap that surrounds the inner cap, the inner cap and the outer cap being separated to define an air gap, the outer cap configured to substantially seal against a nare of the user;
- at least one rib disposed on the cap section of the pillow portion, the at least one rib configured to provide rigidity to the cap section and to limit the collapse of the inner cap or the outer cap, in use, the at least one rib having a first end and a second end, and an upper surface and a lower surface extending between the first end and the second end, wherein the at least one rib extends from the first end at a first location to the second end at a second location, the first and second locations being located on the inner side of the outer cap, the first location being located diametrically across from the second location,
- wherein the rib at least partially lies within the flow of respiratory gases delivered to the user with each of the upper surface and the lower surface located between an uppermost extent and a lowermost extent of the cap section.
4 more elements
A patient interface for supplying the flow of respiratory gases to a user comprising:
- a gasket portion arranged to receive the flow of respiratory gases;
- a pair of pillow portions connected to and extending from the gasket portion, the pillow portions arranged to receive the flow of respiratory gases from the gasket portion and provide the flow of respiratory gases to the user;
- each pillow portion comprising a stalk and a cap section;
- a base of the stalk connected to the gasket portion and the cap section connected to an upper end of the stalk;
- the cap section comprising an inner cap and an outer cap that surrounds the inner cap, the inner cap and the outer cap arranged concentrically and separated to define an air gap between the inner cap and the outer cap, the outer cap configured to substantially seal against a nare of the user;
- at least one rib disposed on the pillow portion within the air gap, the at least one rib arranged to provide rigidity to the cap section and to limit the collapse of the inner cap or the outer cap, wherein the at least one rib extends from a first end at a first location to a second end at a second location, the first and second locations being located on the inner side of the outer cap, the first location being located diametrically across from the second location, the at least one rib tapers in thickness in a direction from an upper end of the outer cap to a lower end of the outer cap,
- wherein the rib at least partially lies within the flow of respiratory gases delivered to the user, the rib having an upper surface and a lower surface, each of which is located above a lowermost extent of the cap section.
4 more elements
A patient interface for supplying the flow of respiratory gases to a user comprising:
- a gasket portion arranged to receive the flow of respiratory gases;
- a pair of pillow portions connected to and extending from the gasket portion, the pillow portions arranged to receive the flow of respiratory gases from the gasket portion and provide the flow of respiratory gases to the user;
- each pillow portion comprising a stalk and a cap section;
- a base of the stalk connected to the gasket portion and the cap section connected to an upper end of the stalk;
- the cap section comprising an inner cap and an outer cap that surrounds the inner cap, the inner cap and the outer cap arranged concentrically and separated to define an air gap between the inner cap and the outer cap, the outer cap configured to substantially seal against a nare of the user;
- wherein each pillow portion comprises at least one rib that extends from a first end at a first location to a second end at a second location, the first and second locations being located on the inner side of the outer cap surface of the cap section, the first location being located diametrically across from the second location,
- wherein the rib at least partially lies within the flow of respiratory gases delivered to the user, the rib having an upper surface and a lower surface, each of which is located above a lowermost extent of the cap section.
4 more elements
Dependencies are inferred from the claim text.