在日常的维修工作中，医用内窥镜系统故障时有发生，常见故障主要分为图像显示故障、内窥镜故障、其他配套设备和器械故障。下面内窥镜维修公司主要来讲讲医用内窥镜监视器无图像现象的维修排查事项。

In daily maintenance work, medical endoscope system failures often occur, and common failures are mainly divided into image display failures, endoscope failures, and other supporting equipment and instrument failures. Below, the endoscope maintenance company will mainly talk about the maintenance and troubleshooting of medical endoscope monitors without image phenomena.

故障现象主要是监视器无图像输出，可以分为两种：一种为监视器呈黑屏状态，无图像，无内窥镜视野框；另一种为监视器有内窥镜视野框，但无图像。

The main fault phenomenon is that the monitor has no image output, which can be divided into two types: one is that the monitor is in a black screen state, with no image, and no endoscope field of view box; Another type is that the monitor has an endoscopic field of view frame but no image.

1、针对种故障现象

1. For the first fault phenomenon

一般会考虑是否为监视器本身故障或信号输入故障造成。现在的监视器多为高清液晶显示器，对监视器进行检查时，需测量外置12V直流电源适配器是否正常供电，若无正常供电，及时更换适配器；若正常，重启设备，观察开机自检画面是否正常，如果自检不通过则可送代理商进行维修。

Generally, it is considered whether it is caused by a malfunction of the monitor itself or a signal input malfunction. Most of the current monitors are high-definition LCD monitors. When checking the monitors, it is necessary to measure whether the external 12V DC power adapter is powered normally. If not, replace the adapter in time; If it is normal, restart the equipment, and observe whether the POST screen is normal. If the self-test fails, send it to a professional agent for repair.

现在的医用高清液晶显示器技术成熟、质量可靠，一般故障率很低，出现无图像现象的故障绝大多数是由于信号输入故障造成的。此时，应从简单的操作入手，先检查液晶显示器的信号输入模式是否设置正确，常用信号输入模式有DVI、HDMI、S-Video、SDI等格式，然后查看信号传输电缆的种类及其在显示器上的接入端口种类名称来确定输入模式，检查显示器输入菜单中的信号格式是否设置成相同，若不同则重新设置后故障大多数可。

The current medical high-definition LCD display technology is mature and reliable in quality, with a generally low failure rate. The vast majority of failures without image phenomenon are caused by signal input faults. At this point, starting with a simple operation, first check whether the signal input mode of the LCD display is set correctly. Common signal input modes include DVI, HDMI, S-Video, SDI, and other formats. Then, check the type of signal transmission cable and the name of the input port on the display to determine the input mode. Check whether the signal format in the display input menu is set to the same, If different, most of the faults can be eliminated after resetting.

反之，则需要沿着信号传输路径反向检查，查看摄像机主机与监视器之间的信号传输电缆是否脱落或损坏，检查摄像机主机和摄像头是否正常工作，如果上述设备出现故障，则需要及时更换备用部件并进行的维修。

On the contrary, it is necessary to reverse check along the signal transmission path, check whether the signal transmission cable between the camera host and the monitor falls off or is damaged, and check whether the camera host and the camera work normally. If the above equipment fails, it is necessary to replace the spare parts in time and carry out professional maintenance.

2、针对第二种故障现象

2. For the second fault phenomenon

应当优先考虑的是内窥镜镜子自身出现问题，比如各种电子软镜因为漏水，液体进入CCD，造成CDD底座腐蚀、严重时CCD损坏、无图像输出。而硬镜出现弯折变形、物镜碎裂等问题时，也会造成无图像故障。这些问题主要由于诊察和手术中以及中的不规范操作造成。

Priority should be given to problems with the endoscope mirror itself, such as various electronic soft mirrors leaking water and liquid entering the CCD, causing corrosion of the CDD base, severe CCD damage, and no image output. When the hard mirror experiences bending deformation, objective lens fragmentation, and other issues, it can also cause no image failure. These problems are mainly caused by non-standard operations in diagnosis, surgical treatment, and sterilization and disinfection.

例如，泌尿外科手术中使用钬激光时，操作光纤不到位，击穿了镜子管路；硬镜物镜被高频电刀电击，或被动力系统工作部误撞，造成物镜碎裂；或者时不慎摔碰造成损坏等。

For example, when Holmium laser is used in Urology surgery, the operating optical fiber is not in place and the mirror tube is broken; The hard lens objective is electrocuted by a high-frequency electric knife or accidentally hit by the power system working part, causing the objective to shatter; Or accidentally falling or damaging during disinfection and sterilization.

由于自身维修技术和设备等限制，出现上述故障的内窥镜大多数需要外送的维修公司，费时费钱。所以，规范操作十分必要，对操作人员要定期进行严格的培训和考核，以减少此类故障的发生。更多相关事项就来我们网站http://www.jiangrenyiliao.cn咨询吧！

Due to limitations in maintenance technology and equipment, most endoscopes with the aforementioned malfunctions need to be sent out to a professional repair company, which is time-consuming and expensive. Therefore, it is necessary to standardize the operation, and operators should receive regular and strict training and assessment to reduce the occurrence of such faults. For more related matters, come to our website http://www.jiangrenyiliao.cn Consult!