US 12,233,209 B2
Ventilation treatment device and ventilation-control method
Zhi Zhuang, Beijing (CN); Mingzhao Zhou, Beijing (CN); and Erliang Li, Beijing (CN)
Assigned to BMC MEDICAL CO., LTD., Beijing (CN)
Filed by BMC MEDICAL CO., LTD., Beijing (CN)
Filed on Feb. 20, 2024, as Appl. No. 18/581,418.
Application 18/581,418 is a continuation of application No. 17/789,798, granted, now 11,944,749, previously published as PCT/CN2020/141985, filed on Dec. 31, 2020.
Claims priority of application No. 201911413191.3 (CN), filed on Dec. 31, 2019.
Prior Publication US 2024/0207546 A1, Jun. 27, 2024
Int. Cl. A61M 16/08 (2006.01); A61M 16/00 (2006.01); A61M 16/20 (2006.01)
CPC A61M 16/0003 (2014.02) [A61M 16/08 (2013.01); A61M 16/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A tube assembly for connecting to a ventilation-treatment apparatus with a gas source, wherein the tube assembly comprises a first tube piece and a second tube piece, the tube assembly is provided with a connecting state in which the first tube piece and the second tube piece are coaxially plug-connected and a separating state in which the first tube piece and the second tube piece are separated from each other;
wherein the first tube piece is provided with an inlet end for connecting the gas source and an outlet end for connecting the second tube piece; the first tube piece comprises a discharging hole, and the discharging hole is configured so that, in the connecting state, the discharging hole is closed to make the gas from the gas source to enter the second tube piece, and in the separating state, the discharging hole is opened to make the gas from the gas source to be discharged outside from the discharging hole; and
the tube assembly further comprises a valve member, and the valve member is configured so that, in the connecting state, the valve member opens the outlet end of the first tube piece to make the gas from the gas source to enter the second tube piece, and in the separating state, the valve member closes the outlet end to make the gas from the gas source to be discharged outside from the discharging hole.