US 12,070,549 B2
Systems and methods for delivering a respiratory gas
Lijun Liu, Beijing (CN); Jianxin Zhi, Beijing (CN); Zhi Zhuang, Beijing (CN); and Min Chang, Beijing (CN)
Assigned to BMC MEDICAL CO., LTD., Beijing (CN)
Filed by BMC MEDICAL CO., LTD., Beijing (CN)
Filed on Jun. 8, 2023, as Appl. No. 18/331,265.
Application 18/331,265 is a continuation of application No. 16/988,595, filed on Aug. 7, 2020.
Application 16/988,595 is a continuation of application No. PCT/CN2018/111996, filed on Oct. 26, 2018.
Prior Publication US 2023/0330370 A1, Oct. 19, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 16/00 (2006.01); A61L 9/20 (2006.01); A61M 11/00 (2006.01); A61M 16/04 (2006.01); A61M 16/06 (2006.01); A61M 16/10 (2006.01); A61M 16/16 (2006.01); G16H 20/40 (2018.01); G16H 40/63 (2018.01)
CPC A61M 16/0066 (2013.01) [A61L 9/20 (2013.01); A61M 16/1075 (2013.01); A61M 16/109 (2014.02); A61M 16/16 (2013.01); A61M 16/161 (2014.02); G16H 20/40 (2018.01); A61L 2209/12 (2013.01); A61M 2016/0027 (2013.01); A61M 2016/003 (2013.01); A61M 16/0465 (2013.01); A61M 16/06 (2013.01); A61M 16/0616 (2014.02); A61M 16/0666 (2013.01); A61M 16/1055 (2013.01); A61M 16/107 (2014.02); A61M 2205/3306 (2013.01); A61M 2205/3368 (2013.01); A61M 2205/3584 (2013.01); A61M 2205/3592 (2013.01); A61M 2205/42 (2013.01); A61M 2205/505 (2013.01); A61M 2205/52 (2013.01); A61M 2205/587 (2013.01); A61M 2209/10 (2013.01); A61M 2230/42 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A humidification assembly configured to humidify pressurized respiratory gas from a main body of a respiratory ventilation apparatus,
the humidification assembly including a liquid chamber configured to accommodate liquid,
the liquid chamber including:
a tank,
a tank cover, and
the tank cover including:
a cover shell,
a first gas passage,
a second gas passage,
a humidification assembly gas inlet port configured to introduce the pressurized respiratory gas, via the first gas passage, into the tank, wherein the first gas passage includes an output port,
a humidification assembly gas outlet port configured to introduce the humidified and pressurized respiratory gas, via the second gas passage, out of the tank, wherein the second gas passage includes an input port,
wherein the humidification assembly is connected to the main body of the respiratory ventilation apparatus through the first gas passage to form a flow channel,
a sealing member, wherein the sealing member at least partially forms the flow channel, and
an angle between a liquid level in the liquid chamber in a position of use and an unlocking direction is between 15°-165°, wherein the liquid chamber contains a liquid and the liquid forms the liquid level in the liquid chamber, and the unlocking direction is the direction of the humidification assembly relative to the main body of the respiratory ventilation apparatus.