Abstract：By analyzing the failure of PB840 ventilator in our hospital in the past two years, the causes of the failure were
found and the solutions were given. Combining with the parts repaired and replaced by PB840 in the past two years, and
observing the damage degree and phenomenon of the failed parts on the maintenance site, the most likely factors
causing the failure were found out. Through the failure phenomenon, it is found that most of the failure of PB840 respiration
is caused by the excessive humidity of compressed air. It connects with the logistics support department to improve the
compressed air quality and strengthen the preventive maintenance of the PB840 ventilator, thus reducing the equipment
failure rate, saving the maintenance cost, raising the use rate and safety of the PB840 ventilator
罗叶辉. PB840呼吸机集中故障分析与维修[J]. 中国医疗设备, 2019, 34(7): 182-184.
LUO Yehui. Analysis and Maintenance of PB840 Ventilator’s Centralized Fault. China Medical Devices, 2019, 34(7): 182-184.
