US 12,064,560 B2
Nasal interfaces for respiratory therapy
Jonathan David Harwood, Auckland (NZ); Andrew Paul Maxwell Salmon, Auckland (NZ); and Kevin Peter O'Donnell, Auckland (NZ)
Assigned to Fisher & Paykel Healthcare Limited, Auckland (NZ)
Filed by Fisher & Paykel Healthcare Limited, Auckland (NZ)
Filed on Jan. 23, 2020, as Appl. No. 16/750,546.
Application 16/750,546 is a continuation of application No. 14/424,331, granted, now 10,576,233, previously published as PCT/NZ2013/000152, filed on Aug. 29, 2013.
Claims priority of provisional application 61/694,707, filed on Aug. 29, 2012.
Prior Publication US 2020/0238037 A1, Jul. 30, 2020
Int. Cl. A61M 16/06 (2006.01); A61M 16/08 (2006.01)
CPC A61M 16/0666 (2013.01) [A61M 16/0605 (2014.02); A61M 16/0611 (2014.02); A61M 16/0622 (2014.02); A61M 16/0683 (2013.01); A61M 16/0816 (2013.01); A61M 16/0875 (2013.01); A61M 16/0825 (2014.02); A61M 2205/0216 (2013.01); A61M 2205/42 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A nasal interface for delivering respiratory therapy to a user, comprising:
a frame;
a pair of nasal delivery elements supported by the frame and configured to deliver a flow of breathing gas to nares of the user;
a conduit configured to deliver the flow of breathing gas to the pair of nasal delivery elements, wherein each of the pair of nasal delivery elements comprises an inner prong that is configured to protrude into a nare of the user and an outer nasal pillow that is configured to seal on outer surfaces of the nare, the outer nasal pillow comprising a plurality of gas exhaust vents configured to direct gas away from the nare;
a headgear configured to secure the frame to a head of the user; and
a diffuser configured to cooperate with the plurality of gas exhaust vents to reduce draft or noise from the plurality of gas exhaust vents.