US 12,357,789 B2
Humidification system
Donald Roy Kuriger, Auckland (NZ); Johannes Nicolaas Bothma, Auckland (NZ); and Igor Olegovich Yatsevich, Auckland (NZ)
Assigned to Fisher & Paykel Healthcare Limited, Auckland (NZ)
Filed by Fisher & Paykel Healthcare Limited, Auckland (NZ)
Filed on May 1, 2023, as Appl. No. 18/309,988.
Application 18/309,988 is a continuation of application No. 17/446,277, filed on Aug. 27, 2021, granted, now 11,672,941.
Application 17/446,277 is a continuation of application No. 16/060,119, granted, now 11,135,395, issued on Oct. 5, 2021, previously published as PCT/IB2016/057285, filed on Dec. 2, 2016.
Claims priority of provisional application 62/266,123, filed on Dec. 11, 2015.
Prior Publication US 2023/0355914 A1, Nov. 9, 2023
Int. Cl. A61M 16/16 (2006.01); A61M 11/04 (2006.01); A61M 16/08 (2006.01); A61M 16/10 (2006.01); A61M 16/12 (2006.01)
CPC A61M 16/161 (2014.02) [A61M 11/042 (2014.02); A61M 16/0833 (2014.02); A61M 16/107 (2014.02); A61M 16/127 (2014.02); A61M 16/16 (2013.01); A61M 2205/21 (2013.01); A61M 2206/16 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A humidification system comprising:
a humidification source configured to humidify gases,
a main gases flow path comprising a low pressure region, and a high pressure region,
the main gases flow path comprising an outlet aperture near the high pressure region, the outlet aperture pneumatically connected to the humidification source to allow a secondary gases flow from the main gases flow path into the humidification source,
the main gases flow path comprising an inlet aperture near the low pressure region, the inlet aperture pneumatically connected to the humidification source to allow the secondary gases flow from the humidification source to return to the main gases flow path; and
a swirl-inducing structure being positioned to cause a main gases flow to swirl to help reduce disruption of flow caused by mixing of the secondary gases flow from the humidification source through the inlet aperture.