随着科学技术的发展，医用内窥镜已经被广泛的应用于医疗领域，它是人类窥视、人体内器官的重要工具之一。医用内窥镜故障难免也会出现，下面医用内窥镜故障维修小编为您讲解下。

With the development of science and technology, medical endoscope has been widely used in the medical field. It is one of the important tools for human beings to peep and treat the internal organs of the human body. It is inevitable that medical endoscope failures will occur. The following medical endoscope failure maintenance manual will explain it to you.

（1）光源系统常见的故障

(1) Common faults of light source system

（a）光线发暗。排除了是光栅遮挡的原因外，基本可以肯定是灯泡接近使用寿命，更换新灯泡则可。氙光灯泡的使用寿命一般设计在500小时，如果光源系统有寿命计时装置，这个问题就很容易。

(a) The light is dim. It is ruled out that the light bulb is close to its service life, and it can be replaced with a new light bulb. The service life of xenon light bulb is generally designed to be 500 hours. If the light source system has a life timer, this problem can be easily solved.

（b）开机灯泡不亮。如果排除了烧掉灯泡这个原因的话，那么问题常常就出在主机高压点火电路部分，因为开机的时候机器会产生上万伏特的脉冲高压，元件会老化得特别快。注意此时不能用万用表去检查脉冲高压。

(b) The power on bulb does not light up. If the reason of burning out the bulb is ruled out, the problem is often in the high-voltage ignition circuit of the host, because the machine will generate tens of thousands of volts of pulse high voltage when it is turned on, and the components will age very quickly. Note that you cannot use a multimeter to check the pulse high voltage at this time.

（2）人工气腹系统常见的故障

(2) 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全部更换，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 incorrect. This is mostly due to the damage of gas pressure sensors. If the machine is designed to have a group of multiple differential pressure sensors working at the same time, generally when one of them is aging or polluted and cannot work, we should replace all of these sensors, otherwise only one of them will be replaced, and the life of other sensors of the same group will also be near 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. If the gas flow sensor is damaged, replace it. Sometimes the flow is calculated by differential pressure. At this time, we need to replace a 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) The equipment leaks air. Many cases are caused by the aging of the device sealing ring. However, there are also reasons for leakage of mechanical pressure reducing valve and damage of solenoid valve, which can be easily identified and repaired.

（3）液体加压系统常见的故障

(3) Common faults of liquid pressurizing system

（a）蠕动泵损坏。

(a) Peristaltic pump is damaged.

（b）液体压力传感器损坏。其原理基本与气体压力传感器相同。

(b) The liquid pressure sensor is damaged. Its principle is basically the same as that of the gas pressure sensor.

（c）设备内部电路损坏。

(c) The internal circuit of the equipment is damaged.

（4）电凝电切系统常见的故障

(4) Common faults of electric coagulation and electric cutting system

（a）设备配件损坏。如脚踏开关，负极板导线，连接导线等常用的易损配件。

(a) The equipment accessories are damaged. Such as foot switch, negative plate wire, connecting wire and other commonly used vulnerable accessories.

（b）电切、电凝，双极故障。在设备内部，这些部分都由不同的电路模块组成。我们可以根据其表现的故障现象对相应的模块电路进行维修或更换。

(b) Electric cutting, electrocoagulation, bipolar fault. Inside the equipment, these parts are composed of different circuit modules. We can repair or replace the corresponding module circuit according to the fault phenomenon.

（5）动力、消融系统常见的故障

(5) Common failures of power and ablation systems

（a）动力系统主要是刨削刀头的磨损和刨削手柄中的高能电机出现问题，而电机的更换是有选择性的，并不是每种电机都有更换配件的。因此在和使用过程中要分外注意保护。

(a) The power system is mainly caused by the wear of the planer head and the problem of the high-energy motor in the planer handle. The replacement of the motor is selective, and not every motor has replacement parts. Therefore, special attention should be paid to protection during disinfection and use.

（b）消融系统在手术应用中主要是刀头的损耗。而设备故障多为电路故障，一般从输出部分着手。

(b) The ablation system is mainly the loss of knife head in surgical application. However, most equipment failures are circuit failures, generally starting from the output part.

（6）冲洗吸引系统常见故障

(6) Common faults of flushing and suction system

（a）压力或者吸力不足。设备中的双向泵老化,或者负压瓶漏气。

(a) Insufficient pressure or suction. The two-way pump in the equipment is aging, or the negative pressure bottle leaks.

（b）设备无法开机,一般多为液体进入设备,在没烧坏相关部件的情况下清理干净被错吸的液体就可以。

(b) The equipment cannot be started. Generally, the liquid enters the equipment. It is OK to clean up the liquid sucked by mistake without burning the relevant parts.

医用内窥镜在使用中常会出现光源系统常见的故障、人工气腹系统常见的故障、液体加压系统常见的故障、电凝电切系统常见的故障、动力、消融系统常见的故障、冲洗吸引系统常见故障，要提前做好预防准备工作，更多事项或问题就来我们网站http://www.jiangrenyiliao.cn咨询吧。

During the use of medical endoscopes, common failures of light source system, artificial pneumoperitoneum system, liquid pressurization system, electrocoagulation and electrocautery system, power, ablation system, and flushing and suction system often occur. We should make preventive preparations in advance, and come to our website for more matters or questions http://www.jiangrenyiliao.cn Consult.