With the development of modern medical technology, minimally invasive surgery has been widely carried out in clinic. As one of the endoscopes, laparoscopic surgery has become an important part of minimally invasive surgery. Clear surgical field is the key to the safety of laparoscopic surgery, so the antifogging treatment of endoscopic lens is very important. In endoscopic surgery, due to the great difference between the body cavity temperature and the external temperature, some water vapor is easy to condense and form a layer of mist after encountering the cold endoscope, which affects the clarity of the surgical site. Display and influence operation. For many years, the traditional lens preheating method has been used in clinical practice for antifogging treatment. However, in practice, salt water spraying, scalding and lens capsizing often occur, which increase the chance of intraoperative contamination and lens damage.

镜头总是模糊。反复擦拭镜头会浪费很多时间，并且还会带来不因素。这就要求眼镜助手应善于快速处理镜片起雾和污染问题，并尽可能长时间保持视野清晰。

The lens is always blurry. Repeatedly wiping the lens will waste a lot of time, and will also bring insecurity. This requires that the glasses assistant should be good at dealing with lens fogging and pollution quickly, and keep the vision clear for as long as possible.

内窥镜头起雾和污染怎么办？答疑：

How to deal with fog and pollution of endoscope lens? Expert answers:

（1）购置带镜头自加热的腔镜设备，但大部分无此功能；

(1) Buy the cavity mirror equipment with lens self heating, but most brands do not have this function;

（2）镜头涂抹防雾剂，贵、成本高；

(2) The lens is coated with antifogging agent, which is expensive and costly;
                   

（3）碘伏纱布擦拭，成本较低，视野易发黄；

(3) Iodophor gauze wipe, low cost, easy to yellow vision;

（4）将镜头回缩 Trocar内，利用镜头 Trocar 内注入的相对低温的 CO2 气流使视野变清晰，但易反复；

(4) The lens is retracted into the trocar, and the relatively low temperature CO2 gas injected into the trocar makes the field of vision clear, but it is easy to repeat;

（5）保温杯装热水浸泡镜头，水温保持在60 ～ 70℃，

(5) The lens was soaked in hot water in sterilized heat preservation cup, and the water temperature was kept at 60-70 ℃,

一次浸泡镜头时间要稍长，约 1 分钟，好让镜头充分预热，高于腹腔内温度。此后，每次镜头模糊后浸泡时间仅需几秒即可。此法过程较为繁琐。

Soak the lens a little longer, about 1 minute, so that the lens fully preheat, higher than the temperature in the abdominal cavity. After that, the soaking time only takes a few seconds after each blur. This method is complicated.

另外每次置入镜头前需将的密封垫内的组织或血液清理干净，可以通过旋转镜身来避开 Trocar下端的血液；进出动作要迅速，避免镜身在体外太久而降温。

In addition, the tissue or blood in the sealing pad should be cleaned before each lens placement, and the blood at the lower end of trocar can be avoided by rotating the lens body; Move in and out quickly to prevent the mirror body from cooling down for too long.

当急性大出血污染内窥镜镜头时，切不可拔出镜头擦拭，这样可能会错失处理的好时机，此时可以借助脏器浆膜面（多选择未被污染的胃、肠浆膜面）快速而轻柔地擦拭镜头。不要选择系膜或网膜表面，可能使内窥镜镜头沾染油脂而更加模糊；也不要选择肝脏或脾脏这类实质性脏器，防止损伤。当术者出血后，扶镜手应重新擦拭内窥镜镜头。

When the endoscopic lens is polluted by acute massive hemorrhage, the lens must not be pulled out to wipe, which may miss a good opportunity for treatment. At this time, the lens can be wiped quickly and gently with the help of the serosa surface of the organs (mostly the surface of the gastric and intestinal serosa that is not polluted). Do not choose the surface of mesangium or omentum, which may make the endoscope lens stained with grease and more blurred; Do not choose the liver or spleen such as solid organs, to prevent injury. When the bleeding is solved, the hand should wipe the lens again.

为了使操作过程顺畅，内窥镜手应尽量少擦拭内窥镜镜头。这就要求眼镜助手总是保护镜片。例如，当能量平台为刀头烧灼时，应适当缩回内窥镜镜头以避免遥测，以防止组织液或血液飞溅到镜头上，并在烧灼完成后返回到原始视距。内窥镜手的任务是为手术者提供清晰稳定的手术图像。并且随着手术过程的变化，它提供了远近范围和角度的适当视野。换句话说，戴眼镜的手充当术者的“两只眼睛”。这就要求腹腔镜手必须熟悉手术步骤和术者的手术习惯，并且必须用手术者保持足够的默契。

In order to make the operation process smooth, the endoscope hand should wipe the endoscope lens as little as possible. This requires the glasses assistant to always protect the lenses. For example, when the energy platform cauterizes the blade, the endoscope lens should be retracted appropriately to avoid telemetry, so as to prevent tissue fluid or blood splashing on the lens, and return to the original visual range after cauterization. The task of the endoscopic hand is to provide a clear and stable image for the surgeon. And with the change of the operation process, it provides an appropriate field of vision of the far and near range and angle. In other words, the hand with glasses acts as the surgeon's "two eyes.". This requires that the laparoscopic hand must be familiar with the operation procedure and the operator's operation habits, and must keep enough tacit understanding with the operator.