总结分析临床应用的国内外气动急救呼吸机及Bain回路，根据现有战备器材的不足及临床需要，改进国外高档呼吸机气动气控技术，研制成可调空混Bain式气动呼吸机（DH－1多功能呼吸机），使可调空混单向射流泵应用于上升内压折叠风箱式气动气控制呼吸中，可直观监测患者潮气量。用 Summarize and analyze clinically applied domestic and international pneumatic emergency ventilators and Bain circuits, according to the existing shortage of combat equipment and clinical needs, improve the foreign high-end ventilator pneumatic control technology, developed into a tunable air-mixed Bain-type pneumatic breathing machine (DH- (1) Multi-function ventilator), making the adjustable air-blown one-way jet pump applied to the rising inner pressure folded bellows type pneumatic control breath, which can directly monitor the tidal volume of the patient. use