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

　　经过长期的手术室仪器设备维修，发现故障根据维修难易和故障大小，可分为复杂故障、中等故障和简单故障。经统计分析：复杂故障的概率只有15%（如主机、主要电路坏），由于各种条件限制，这部分故障难以在手术室现场短时间内完成，必须撤机维修。中等故障占25%左右，而简单故障却达到60%左右，其中使用不当或操作失误引起故障占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%.
           

　　人工气腹系统常见的故障

　　Common faults of artificial pneumoperitoneum system

　　（a）压力显示不正确。这多是气体压力传感器损坏，如果机器设计有一组多个压差压力传感器同时工作的，一般一个老化或者污染无法工作的时候，我们要把这组传感器部更换，否则只换其中一个，其他的同组的传感器寿命也接近临界了。

　　(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）流量不准确。气体流量传感器损坏更换即可。有时候是通过压差来计算流量的，这时候我们就要更换新的压差传感器。

　　(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）设备漏气。很多情况是器械密封圈老化而引起的。但也有设备机械减压阀漏气和电磁阀损坏的原因，这个比较容易判断出并对其进行修复。

　　(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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