US 12,226,579 B2
Nasal cannula and securement system
Michael Paul Ronayne, Auckland (NZ); Anna Rose Northey, Auckland (NZ); Brad Michael Howarth, Auckland (NZ); Leon Tyler Stanley, Auckland (NZ); Samuel Rollo Ross Davis, Auckland (NZ); Julio Derek Meech, Auckland (NZ); James William Stanton, Auckland (NZ); Larissa Grace Michelsen, Auckland (NZ); and Oscar Elliot James McGerty, Auckland (NZ)
Assigned to Fisher & Paykel Healthcare Limited, Auckland (NZ)
Appl. No. 17/253,052
Filed by Fisher & Paykel Healthcare Limited, Auckland (NZ)
PCT Filed Jun. 19, 2019, PCT No. PCT/NZ2019/050073
§ 371(c)(1), (2) Date Dec. 16, 2020,
PCT Pub. No. WO2019/245391, PCT Pub. Date Dec. 26, 2019.
Claims priority of provisional application 62/769,531, filed on Nov. 19, 2018.
Claims priority of provisional application 62/687,230, filed on Jun. 19, 2018.
Prior Publication US 2021/0370003 A1, Dec. 2, 2021
Int. Cl. A61M 16/06 (2006.01)
CPC A61M 16/0666 (2013.01) [A61M 16/0683 (2013.01); A61M 16/0688 (2014.02); A61M 16/0694 (2014.02); A61M 2240/00 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A patient interface assembly comprising:
a patient interface comprising: a body and two nasal prongs extending from the body, each of the nasal prongs having a gas inlet for fluid communication with a supply of breathable gas, and a gas outlet configured to direct a flow of gas towards a nare of a user's nose, wherein each of the nasal prongs is in fluid communication with the other of the nasal prongs via a manifold, the manifold comprising an elongate body defining an interior space, wherein a wall of the elongate body defining the interior space is solid except for a first opening, a second opening and the gas inlet of each of the nasal prongs, wherein in a first configuration, the first opening is a gas inlet of the manifold and the second opening is a gas outlet of the manifold, and in a second configuration, the second opening is the gas inlet of the manifold, and the first opening is the gas outlet of the manifold;
each of the nasal prongs further including an exterior surface, at least a portion of the exterior surface being a sealing surface configured to seal the nare of the user's nose; and
a securement system for the patient interface, the securement system comprising a bonnet, and a two-part releasable attachment arrangement, the two-part releasable attachment arrangement comprising a first patch and a second patch,
the first patch having a patient side and an interface side, the patient side of the first patch being attachable to the bonnet, the interface side of the first patch being provided with a first part of the two-part releasable attachment arrangement,
the second patch having an interface side and a patient side, the patient side of the second patch being provided with a complimentary second part of the two-part releasable attachment arrangement, and
the interface side of the second patch being attachable to or formed as part of the patient interface.