基础麻醉后行连续硬膜外麻醉，常规紧闭面罩给氧、辅助呼吸；
Continuous epidural anesthesia were performed after basal anesthesia, and assistant respiration were performed with mask oxygen inhalation.
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.
第一部分多功能急救给氧新型面罩的研制目的：研制一种新型主要用于内窥镜检查时急救给氧多功能面罩，该面罩也可用于平战时伤病员的急救。
Objective To develop a new multi-purpose face mask for oxygen provision in first aid, which can be used in both war time and peace time.
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