我們知道纖維內(nèi)窺鏡的成像，是通過成像束、物鏡直接接觸被檢部位，在冷光源、導(dǎo)光束的照射下，將被檢部位經(jīng)物鏡、像束反射到目鏡上進行觀察的，同樣“彩帶彩斑”的形成也是通過這一光學(xué)路徑的。那么在什么條件下才能形成“彩帶彩斑”呢？下面內(nèi)窺鏡設(shè)備維修人員為您分析：

We know that the imaging of a fiber endoscope is achieved by directly contacting the inspected area with an imaging beam or objective, and under the illumination of a cold light source or guiding beam, the inspected area is reflected onto the objective lens or image beam for observation. Similarly, the formation of "ribbon spots" is also through this optical path. So under what conditions can "ribbons and spots" be formed? Below, the maintenance personnel of the endoscope equipment will analyze for you:

（1）當(dāng)蛇形管變曲部套皮破裂造成漏水，大量的水儲留在鏡內(nèi)；

(1) When the curved part of the serpentine tube ruptures, causing water leakage, a large amount of water is stored in the mirror;

（2）當(dāng)水氣按鈕上的“O”形圈老化損壞，引起手柄處漏水，水從蓋板縫隙流入鏡內(nèi)；

(2) When the "O" ring on the water vapor button is aged and damaged, it causes water leakage at the handle, and water flows into the mirror through the gap of the cover plate;

（3）當(dāng)蛇形管觀察窗玻璃破裂，水進入鏡內(nèi)；

(3) When the observation window glass of the serpentine tube breaks, water enters the mirror;

（4）當(dāng)水氣管斷裂水直接進入鏡內(nèi)。一旦水進入鏡內(nèi)時間過長，就會使物鏡和光導(dǎo)纖維的連接處出現(xiàn)脫膠，從而水就會慢慢地滲入到物鏡內(nèi)，當(dāng)冷光源的光照射到物鏡內(nèi)的水滴時，就會產(chǎn)生反射與折射現(xiàn)象，終形成了“彩帶彩斑”。水滲入物鏡的多少就決定了“彩帶彩斑”的大小，水滴越大，“彩帶彩斑”就越大越重，水滴越小“彩帶彩斑”就越小越淡。

(4) When the water pipe breaks, water directly enters the mirror. Once the water enters the lens for a long time, the connection between the objective lens and the Optical fiber will be degummed, so that the water will slowly penetrate into the objective lens. When the light from the cold light source shines on the water drops in the objective lens, the reflection and refraction will occur, eventually forming "ribbons and spots". The amount of water seeping into the objective lens determines the size of the "ribbon spot". The larger the water droplet, the larger and heavier the "ribbon spot". The smaller the water droplet, the smaller and lighter the "ribbon spot".

彩帶的預(yù)防

Prevention of ribbons

1.經(jīng)常性的檢查纖維內(nèi)鏡的端部，及彎曲部套皮磨損情況，發(fā)現(xiàn)破損或漏水，應(yīng)立即停止使用。

1. Regularly check the end of the fiber endoscope and the wear of the curved part of the sheath. If damage or leakage is found, immediately stop using it.

2.對于彎曲部套皮破損嚴重，鏡內(nèi)已大面積進水，應(yīng)采取果斷措施，將彎曲部套皮剝?nèi)ヅ懦鲞M水，同時在100W燈泡下烘干，燈泡和彎曲部距離20充滿為宜。

2. For severe damage to the sheath of the curved part, where a large area of water has entered the mirror, decisive measures should be taken to peel off the sheath of the curved part and discharge the water. At the same time, it should be dried under a 100W light bulb, and the distance between the light bulb and the curved part should be 20.

3.當(dāng)發(fā)現(xiàn)水氣按鈕處漏水，應(yīng)立即停止使用，待更換“O”形圈后不漏再用。

3. When water leakage is found at the water vapor button, it should be stopped immediately and not used again after replacing the "O" ring.

4.杜絕帶故障操作。有時水進入鏡內(nèi)較少，短時間內(nèi)不影響視野，但時間一長“彩帶”就慢慢形成了。

4. Eliminate faulty operations. Sometimes there is less water entering the mirror and it does not affect the field of view in a short period of time, but over time, "ribbons" gradually form.

5.當(dāng)發(fā)生進水故障經(jīng)上述處理后，有條件的應(yīng)立即修理，無條件的必須在一周內(nèi)送修。

After the above treatment, if there is a water inlet fault, it should be repaired immediately if conditions permit, and if conditions permit, it must be sent for repair within one week.

實踐證明，采取以上幾條措施，可以避免的纖維內(nèi)鏡發(fā)生彩帶故障，大大提高了使用壽命。更多相關(guān)內(nèi)窺鏡事項就來我們網(wǎng)站http://www.daybang.cn咨詢了解吧！

Practice has proven that adopting the above measures can avoid ribbon failure in fiber endoscopes and greatly improve their service life. For more related endoscopic matters, please visit our website http://www.daybang.cn Consult and understand!