US 12,290,639 B2
Surgical humidifier control
Ali Ghalib Abdul Rahman Ghalib, Auckland (NZ); Lina Tessy, Auckland (NZ); Joseph Patrick Walter Strevens, Auckland (NZ); and Paul David Phillips, Auckland (NZ)
Assigned to Fisher & Paykel Healthcare Limited, Auckland (NZ)
Filed by Fisher & Paykel Healthcare Limited, Auckland (NZ)
Filed on Sep. 23, 2021, as Appl. No. 17/448,618.
Application 17/448,618 is a division of application No. 15/849,405, filed on Dec. 20, 2017, granted, now 11,154,685.
Application 15/849,405 is a continuation of application No. 14/023,391, filed on Sep. 10, 2013, granted, now 9,878,123, issued on Jan. 30, 2018.
Claims priority of provisional application 61/699,773, filed on Sep. 11, 2012.
Prior Publication US 2022/0008681 A1, Jan. 13, 2022
Int. Cl. A61M 16/16 (2006.01); A61M 16/00 (2006.01); A61M 16/10 (2006.01)
CPC A61M 16/16 (2013.01) [A61M 16/026 (2017.08); A61M 16/1075 (2013.01); A61M 2016/0039 (2013.01); A61M 16/108 (2014.02); A61M 16/1085 (2014.02); A61M 16/109 (2014.02); A61M 16/1095 (2014.02); A61M 16/161 (2014.02); A61M 2205/3368 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of controlling a surgical humidifier, the surgical humidifier connectable to a first conduit for providing gas to the surgical humidifier, and a second conduit for providing humified gas to a patient, the method comprising:
operating the surgical humidifier in a pre-heat mode based on detecting that the surgical humidifier is switched on and at least one of the first conduit or the second conduit is disconnected from a chamber of the surgical humidifier,
wherein the pre-heat mode comprises:
receiving a heater plate temperature reading from a heater plate sensor of the surgical humidifier; and
powering a heater plate of the surgical humidifier to achieve a first heater plate temperature set point associated with the pre-heat mode based on the received heater plate temperature reading;
terminating the pre-heat mode based on detecting that both the first conduit and the second conduit are connected to the chamber and the chamber is coupled to a humidifier body of the surgical humidifier; and
based on terminating the pre-heat mode, operating the surgical humidifier in a normal mode, the normal mode comprising powering the heater plate to achieve a second heater plate temperature set point associated with the normal mode.