US 10,363,387 B2
Patient interface and aspects thereof
Olivia Marie Allan, Auckland (NZ); Arvin San Jose Gardiola, Auckland (NZ); Lewis George Gradon, Auckland (NZ); Wen Dong Huang, Auckland (NZ); Alastair Edwin McAuley, Auckland (NZ); Mark Arvind McLaren, Auckland (NZ); Craig Robert Prentice, Auckland (NZ); Andrew Paul Maxwell Salmon, Auckland (NZ); and Silas Sao Jin Siew, Auckland (NZ)
Assigned to Fisher & Paykel Healthcare Limited, Auckland (NZ)
Filed by Fisher & Paykel Healthcare Limited, Auckland (NZ)
Filed on Oct. 12, 2016, as Appl. No. 15/292,065.
Application 15/292,065 is a continuation of application No. 15/047,538, filed on Feb. 18, 2016, granted, now 10,328,226.
Application 15/047,538 is a continuation of application No. 14/887,234, filed on Oct. 19, 2015, abandoned.
Application 14/887,234 is a continuation of application No. 12/945,141, filed on Nov. 12, 2010.
Application 12/945,141 is a continuation in part of application No. PCT/NZ2009/000072, filed on May 12, 2009.
Application PCT/NZ2009/000072 is a continuation in part of application No. PCT/IB2010/052061, filed on May 10, 2010.
Claims priority of provisional application 61/052,362, filed on May 12, 2008.
Claims priority of provisional application 61/376,067, filed on Aug. 23, 2010.
Claims priority of provisional application 61/260,590, filed on Nov. 12, 2009.
Prior Publication US 2017/0072155 A1, Mar. 16, 2017
Int. Cl. A62B 7/00 (2006.01); A62B 9/00 (2006.01); A61M 16/06 (2006.01); A61M 16/08 (2006.01)
CPC A61M 16/0666 (2013.01) [A61M 16/06 (2013.01); A61M 16/0605 (2014.02); A61M 16/0616 (2014.02); A61M 16/0683 (2013.01); A61M 16/0816 (2013.01); A61M 16/0825 (2014.02); A61M 16/0875 (2013.01); A61M 2205/0216 (2013.01); A61M 2205/0238 (2013.01); A61M 2209/088 (2013.01); A61M 2210/0618 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A patient interface comprising:
a mask assembly comprising a seal and a frame;
the seal comprising a pair of protruding nostril locators, each nasal locator including an outlet aperture and being configured to seal against at least a nostril of a user, the seal also comprising an oval air supply aperture with a larger dimension of the oval air supply aperture extending in a lateral direction;
the frame comprising a distal side comprising a round connector connected to a flexible breathing gas supply tube, the round connector comprising a convex right side surface and a convex left side surface, the frame further comprising a left side portion disposed on a left side of the round connector and having a convex left lateral edge disposed laterally outwardly from the left convex side surface of the round connector and a right side portion disposed on a right side of the round connector and having a convex right lateral edge disposed laterally outwardly from the convex right side surface of the round connector;
the frame further comprising a left side arm extending from an apex of the convex left lateral edge of the frame at a transverse angle to an outer surface of the convex left lateral edge of the frame and to a location beyond an extreme width of the seal, the left side arm including a left side headstrap connector portion disposed at a location beyond the extreme width of the seal;
the frame further comprising a right side arm extending from an apex of the convex right lateral edge of the frame at a transverse angle to an outer surface of the convex right lateral edge of the frame and to a location beyond the extreme width of the seal, the right side arm including a right side headstrap connector portion disposed at a location beyond the extreme width of the seal, wherein the convex left lateral edge of the frame and the convex right lateral edge of the frame are connected to each other with portions of the frame extending across upper and lower sides of the round connector;
wherein the frame also comprises a left side semi-oval portion bordered by the convex left side surface of the round connector and the convex left lateral edge and a right side semi-oval portion bordered by the convex right side surface of the round connector and the convex right lateral edge, the left and right side semi-oval portions defining left and right convex outer surfaces of the frame, respectively, wherein the left and right side semi-oval portions are convex along directions extending from the round connector toward the left and right arms, respectively; and
first and second pluralities of apertures each arranged in a semi-oval group of apertures disposed respectively on the left and right side semi-oval portions forming first and second gas washout vents, wherein the semi-oval groups of apertures include concave sides defined by the convex left and right side surfaces of the round connector.