Abstract：Objective To master the structure of anesthetic machine, analyze the cause of fresh air transmit troubleshooting and
solve the problem. Methods With the air and electric path analysis, following the normal rules and the usage of exclusive, the
problem was solved one by one. Results The alarm problem of "fresh gas conveying failure" was solved with the exclusive
method. Conclusion Paying attention to the normal maintenance and mastering the techniques is the key to the well operation
of anesthetic machine.
伍洪，马海新，庞周龙，周旋坤. 德尔格Primus麻醉机结构原理及故障分析[J]. 中国医疗设备, 2019, 34(5): 167-169.
WU Hong, MA Haixin, PANG Zhoulong, ZHOU Xuankun. Structure Principle and Troubleshooting of the Drager Primus Anesthetic Machine. China Medical Devices, 2019, 34(5): 167-169.
