7 tips for medical device maintenance

　　1. 亲自重复故障(如果可以重复的话)，不轻信用户或第三者的口述或转述。仔细观察，不轻信用户的口述，尤其是第三者的转述。有的操作者为了推脱自己的责任，会说仪器自己突然...,自己什么也没动,等等.这些都是可以理解的。工程师要会妥善处理。

　　1. Repeat the fault in person (if it can be repeated), and don't trust the oral or retelling of users or third parties. Observe carefully and don't believe the oral statements of users, especially those of third parties. Some operators, in order to shirk their responsibility, will say that the instrument itself suddenly... Did not move anything, etc. all these are understandable. The engineer will handle it properly.

　　2. 先外部，后内部。不要动不动就打开机壳，没有初步的判断和排除就喜欢铺开摊子绝不是老手的做法。指望打开机壳看哪里有断线或明显故障之处,纯粹是在碰运气，即使好运也不可能每次都这样。约有50%故障是由外部环境或操作、清洁等造成的。如是否关机时间长了?昼夜温差是否很大?仪器放置的位置是否离电梯间很近? 仪器附近还有什么仪器在使用?计算机设置是否正确?等等。
              

　　2. Outside first, then inside. Don't always open the shell, without preliminary judgment and exclusion like to spread out the stall is not an old way. Looking to open the case to see where there is a broken line or obvious fault, is pure luck, even if good luck is not always like this. About 50% of the failures are caused by external environment or operation, cleaning, etc. For example, whether the shutdown time is long, whether the temperature difference between day and night is large, whether the location of the instrument is close to the elevator hall, what instruments are used near the instrument, whether the computer settings are correct, etc.

　　3. 先电源，后主机;先附件，后主机。应先检查电源是否稳定、负载是否过重、地线是否良好、电极等附件是否良好和正常、各接口是否正确等。

　　3. First power supply, then main engine; first accessories, then main engine. Check whether the power supply is stable, whether the load is too heavy, whether the ground wire is in good condition, whether the accessories such as electrodes are in good condition and normal, and whether the interfaces are correct.

　　4.充分利用仪器面板上各种按键、显示屏幕和操作 或维修程序等，作些排除，这需要极其熟悉结构。

　　4. Make full use of all kinds of buttons, display screen and operation or maintenance procedures on the instrument panel to make some exclusion, which requires extremely familiar with the structure.

　　5. 了解用户的操作习惯、操作人员结构和水平，科室经济情况等也会对维修有很大帮助。如可推断清洁保养得如何，是否有欲更新的想法(否则无论怎么修都不会说好)等。如笔者碰到一台血球计数仪，前任几个工程师无数次维修，持续二年，还换过新机器，但不到

　　5. Understanding the operating habits of users, the structure and level of operators, and the economic situation of the Department will also be of great help to the maintenance. If you can infer how well the cleaning and maintenance is, whether you want to update the idea (otherwise, no matter how you repair it, it will not be agreed). For example, the author came across a blood cell counter, several former engineers repaired it for two years, and replaced it with a new machine

　　半年又重复出现故障，麻烦不断。我接手后有一次接报修，赶到时屏幕暗的，问医生是这台吗?医生回答是的，且上前按电源开关。按后无反应，就又按一下，机器重启了。原来仪器有屏幕保护功能，该科室无专人保管使用，使用者用好就走，后一使用者一看屏幕暗的，就开开关。每天数百次开关电源，怎有不坏之理?修好后，我写了一个条子贴在仪器前，写明若发现屏幕暗，先随意按一下任何键，不亮再开电源开关。从此就再也没这么麻烦了。

　　Six months and repeated failures, trouble. After I took over, I received a report for repair. When I arrived, the screen was dark. I asked the doctor if it was this one. The doctor answered yes and went forward to press the power switch. If there is no response after pressing, press again, and the machine restarts. The original instrument has the function of screen protection. There is no special person in the Department to keep and use the instrument. The user can leave after using it well. The later user will turn on the switch when the screen is dark. After repairing, I wrote a note and pasted it in front of the instrument, saying that if the screen is dark, press any key at will, and then turn on the power switch. There's no more trouble.

　　6. 不轻易更换原来仪器上的元器件和板子、管道等，因为有些元器件与板子、软件数据相关。 更不能靠不停地换板子和部件来缩小故障源，否则招一民工教教即会(目前此类维修者多，既可收费又简单)。

　　6. It is not easy to replace the components, boards and pipes of the original instrument, because some components are related to the board and software data. Moreover, we can't reduce the fault source by constantly changing boards and components, otherwise we can recruit a migrant worker for teaching (at present, there are many such maintenance workers, which can be charged and simple).

　　7. 必要时仪器或工程师要承担责任，背“黑锅”。若责任在科室或使用者，以后更难打交道了。出于各种目的,也会出现：有人故意设置故障。

　　7. When necessary, the instrument or engineer should bear the responsibility and bear the "black pot". If the responsibility lies in the department or user, it will be more difficult to deal with in the future. For a variety of purposes, there will also be: someone deliberately set the fault.