US 12,017,001 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 Dec. 10, 2020, as Appl. No. 17/118,547.
Application 17/118,547 is a continuation of application No. 17/073,495, filed on Oct. 19, 2020.
Application 17/073,495 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 2021/0113791 A1, Apr. 22, 2021
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 16/08 (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)] 12 Claims
OG exemplary drawing
 
1. A respiratory ventilation apparatus configured to deliver a respiratory gas to a patient interface, comprising:
a gas pressurization unit located in a main body of the respiratory ventilation apparatus, and being configured to generate a pressurized respiratory gas by pressurizing the respiratory gas;
a humidification assembly being removably coupled to the main body of the respiratory ventilation apparatus, and being configured to humidify the pressurized respiratory gas, the main body of the respiratory ventilation apparatus including a housing provided with a first side wall configured to discharge the pressurized respiratory gas;
wherein the humidification assembly includes:
a liquid chamber configured to accommodate one or more liquids, the liquid chamber comprises:
a tank; and
a tank cover, wherein the tank cover includes a second gas inlet port, the second gas inlet port being configured to introduce the pressurized respiratory gas from the main body of the respiratory ventilation apparatus into the liquid chamber; and
the respiratory ventilation apparatus further comprising:
a first gas inlet port configured to introduce the respiratory gas into the respiratory ventilation apparatus, the first gas inlet port being set on a second side wall of the housing of the main body of the respiratory ventilation apparatus; and
a first gas outlet port configured to discharge the humidified and pressurized respiratory gas to a respiration tube;
wherein the humidification assembly further includes a heater plate configured to heat the one or more liquids and generate vapor to humidify the pressurized respiratory gas;
a connecting piece configured to provide a sealed connection between the tank cover and the main body of the respiratory ventilation apparatus wherein the connecting piece includes a declining surface facing the tank cover, the tank cover includes a corresponding declining surface facing the connecting piece, and the declining surface of the tank cover includes the second gas inlet port.