US 12,029,858 B2
Humidification of respiratory gases
Daniel John Smith, Auckland (NZ); Anthony James Newland, Auckland (NZ); Po-Yen Liu, Auckland (NZ); Stefan Leo Van Workum, Auckland (NZ); and Ivan Chih-Fan Teng, Auckland (NZ)
Assigned to Fisher & Paykel Healthcare Limited, Auckland (NZ)
Filed by Fisher & Paykel Healthcare Limited, Auckland (NZ)
Filed on Dec. 23, 2020, as Appl. No. 17/132,691.
Application 17/132,691 is a continuation of application No. 16/070,516, granted, now 10,905,843, previously published as PCT/NZ2017/050003, filed on Jan. 16, 2017.
Claims priority of provisional application 62/362,709, filed on Jul. 15, 2016.
Claims priority of provisional application 62/280,076, filed on Jan. 18, 2016.
Prior Publication US 2021/0178107 A1, Jun. 17, 2021
Int. Cl. A61M 16/16 (2006.01); A61M 16/00 (2006.01); A61M 16/08 (2006.01); A61M 16/10 (2006.01)
CPC A61M 16/16 (2013.01) [A61M 16/0069 (2014.02); A61M 16/024 (2017.08); A61M 16/026 (2017.08); A61M 16/0891 (2014.02); A61M 16/109 (2014.02); A61M 16/1095 (2014.02); A61M 16/161 (2014.02); A61M 2016/0036 (2013.01); A61M 2016/0039 (2013.01); A61M 2205/3368 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A respiratory assistance system for delivery of heated and humidified gases to a patient via a patient interface from a gases source through an inspiratory conduit and a humidification chamber, the humidification chamber configured to be heated by a chamber heater, the respiratory assistance system comprising:
an inlet sensor located upstream of the humidification chamber, the inlet sensor configured to measure a property of gases from the gases source; and
a control system comprising one or more hardware processors, the control system configured to determine whether to change operating parameters of the system based on the measured property of gases;
wherein the operating parameters comprises a setpoint of the chamber heater, the control system configured to reduce the setpoint in response to detecting a room entrained ventilator as the gases source.