结论辅以内镜面罩给氧进行无痛胃镜检查在维持生命体征指标上优于鼻塞管给氧，使无痛胃镜检查更为安全。
Conclusion The application of oxygen inhalation with a special facial mask during propofol-sedated gastroscopy appears to be more safer than that of oxygen inhalation via snuffle tube.
该实用新型的技术方案为：吸痰管（1） 上固定有隔离面罩（2），吸痰管（1）与吸痰嘴（3）固定连接相通。
The technical proposal of the utility model is as follows: the sputum suction tube (1) is fixed with an isolation mask (2) and is fixedly connected and communicated with a sputum suction mouth (3).
主要结构有：JDQM全面罩、供气阀、减压阀、背板、压力表、报警哨、中压管、碳纤维复合气瓶等。
Main structured items are: JDQM full face mask, air supply valve, pressure regulator valve, backboard, pressure gauge, alarming whistle, medium pressure tube, carbon fiber composite cylinder, etc.
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