What are the common methods of medical endoscope pneumoperitoneum machine maintenance?

　　經過長期的手術室儀器設備維修，發現故障根據維修難易和故障大小，可分為復雜故障、中等故障和簡單故障。經統計分析：復雜故障的概率只有15%（如主機、主要電路壞），由于各種條件限制，這部分故障難以在手術室現場短時間內完成，必須撤機維修。中等故障占25%左右，而簡單故障卻達到60%左右，其中使用不當或操作失誤引起故障占30%左右。

　　After a long-term operation room instrument and equipment maintenance, it is found that the fault can be divided into complex fault, medium fault and simple fault according to the maintenance difficulty and fault size. According to statistical analysis, the probability of complex fault is only 15% (such as the main engine and main circuit are broken). Due to various conditions, this part of fault is difficult to be completed in the operating room in a short time, so it must be removed for maintenance. Medium fault accounts for about 25%, while simple fault accounts for about 60%, among which the fault caused by improper use or operation error accounts for about 30%.
           

　　人工氣腹系統常見的故障

　　Common faults of artificial pneumoperitoneum system

　　（a）壓力顯示不正確。這多是氣體壓力傳感器損壞，如果機器設計有一組多個壓差壓力傳感器同時工作的，一般一個老化或者污染無法工作的時候，我們要把這組傳感器部更換，否則只換其中一個，其他的同組的傳感器壽命也接近臨界了。

　　(a) The pressure display is not correct. Most of these are gas pressure sensors damaged. If the machine is designed to have a group of multiple differential pressure sensors working at the same time, and generally a group of sensors cannot work due to aging or pollution, we need to replace this group of sensors, otherwise only one of them will be replaced, and the life of other sensors in the same group is close to the critical point.

　　（b）流量不準確。氣體流量傳感器損壞更換即可。有時候是通過壓差來計算流量的，這時候我們就要更換新的壓差傳感器。

　　(b) The flow is not accurate. Replace the damaged gas flow sensor. Sometimes the flow is calculated by the differential pressure. At this time, we need to replace the new differential pressure sensor.

　　（c）設備漏氣。很多情況是器械密封圈老化而引起的。但也有設備機械減壓閥漏氣和電磁閥損壞的原因，這個比較容易判斷出并對其進行修復。

　　(c) Air leakage of equipment. Many cases are caused by the aging of the sealing ring of the instrument. But there are also reasons for leakage of mechanical pressure reducing valve and damage of solenoid valve, which is easy to judge and repair.

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