內(nèi)窺鏡憑借其能深入人體或設(shè)備內(nèi)部進(jìn)行觀察的特性，在醫(yī)療診斷、工業(yè)檢測(cè)等領(lǐng)域發(fā)揮著不可替代的作用。而光纖作為內(nèi)窺鏡中傳輸圖像和光線的關(guān)鍵部件，其性能直接影響內(nèi)窺鏡的使用效果。當(dāng)內(nèi)窺鏡出現(xiàn)故障時(shí)，維修過程中常常會(huì)涉及光纖修復(fù)問題。那么，究竟在什么情況下需要進(jìn)行光纖修復(fù)？

　　Endoscopes play an irreplaceable role in medical diagnosis, industrial testing, and other fields due to their ability to observe deeply inside the human body or equipment. As a key component for transmitting images and light in endoscopes, the performance of optical fibers directly affects the effectiveness of endoscope use. When the endoscope malfunctions, fiber optic repair issues are often involved in the repair process. So, under what circumstances is fiber optic repair necessary 

　　一、內(nèi)窺鏡中的光纖：核心功能與結(jié)構(gòu)特性

　　1、 Fiber optics in endoscopes: core functions and structural characteristics

　　在內(nèi)窺鏡系統(tǒng)中，光纖主要承擔(dān)兩大核心功能 —— 照明與圖像傳輸 。照明光纖負(fù)責(zé)將外部光源發(fā)出的光線傳導(dǎo)至觀察部位，為內(nèi)部視野提供充足照明，使醫(yī)生或檢測(cè)人員能夠清晰地觀察到細(xì)微結(jié)構(gòu)；圖像傳輸光纖則通過光的全反射原理，將內(nèi)窺鏡鏡頭捕捉到的圖像以光信號(hào)的形式傳輸?shù)酵獠匡@示設(shè)備上，實(shí)現(xiàn)可視化觀察。

　　In endoscopic systems, optical fibers mainly perform two core functions - illumination and image transmission. The lighting fiber is responsible for transmitting the light emitted by external light sources to the observation site, providing sufficient illumination for the internal field of view, so that doctors or testing personnel can clearly observe subtle structures; The image transmission fiber uses the principle of total reflection of light to transmit the image captured by the endoscope lens in the form of an optical signal to an external display device, achieving visual observation. 

　　從結(jié)構(gòu)上看，內(nèi)窺鏡的光纖束由大量極細(xì)的玻璃或塑料光纖絲組成，這些光纖絲緊密排列，每一根都獨(dú)立傳輸光線或圖像信息的一部分。由于光纖絲直徑微小，且在使用過程中需要頻繁彎曲、伸縮，這使得光纖容易受到損傷，進(jìn)而影響內(nèi)窺鏡的正常工作。因此，在維修過程中，光纖修復(fù)成為保障內(nèi)窺鏡性能的重要環(huán)節(jié)。

　　Structurally, the fiber optic bundle of an endoscope is composed of a large number of extremely thin glass or plastic fibers, which are tightly arranged and each independently transmits a portion of light or image information. Due to the small diameter of fiber optic cables and the need for frequent bending and stretching during use, the fibers are prone to damage, which in turn affects the normal operation of endoscopes. Therefore, in the maintenance process, fiber optic repair becomes an important link to ensure the performance of endoscopes. 

　　二、需要光纖修復(fù)的常見情況

　　2、 Common situations requiring fiber optic repair

　?。ㄒ唬┪锢硇該p傷

　?。?） Physical damage

　　在使用過程中，內(nèi)窺鏡可能會(huì)因受到外力碰撞、擠壓或過度彎曲而導(dǎo)致光纖損壞。例如，在醫(yī)療手術(shù)中，內(nèi)窺鏡與其他器械的意外碰撞，或者在工業(yè)檢測(cè)時(shí)，將內(nèi)窺鏡強(qiáng)行插入狹窄、復(fù)雜的空間，都可能使光纖束中的部分光纖絲斷裂。一旦光纖斷裂，光線或圖像信號(hào)的傳輸就會(huì)中斷，導(dǎo)致觀察畫面出現(xiàn)暗區(qū)、模糊甚至完全黑屏的現(xiàn)象 ，此時(shí)必須進(jìn)行光纖修復(fù)才能恢復(fù)內(nèi)窺鏡的正常功能。

　　During use, the endoscope may be damaged due to external collision, compression, or excessive bending of the optical fiber. For example, in medical surgery, accidental collisions between endoscopes and other instruments, or forcibly inserting endoscopes into narrow and complex spaces during industrial testing, may cause some optical fibers in the fiber bundle to break. Once the fiber optic cable breaks, the transmission of light or image signals will be interrupted, resulting in dark areas, blurring, or even complete black screens in the observed image. At this time, fiber optic repair is necessary to restore the normal function of the endoscope. 

　?。ǘ├匣c磨損

　?。?） Aging and Wear

　　隨著使用時(shí)間的增加，光纖會(huì)逐漸老化，其光學(xué)性能下降。光纖的外層保護(hù)套也會(huì)因長(zhǎng)期使用而磨損，導(dǎo)致內(nèi)部光纖絲暴露在空氣中，受到氧化、污染等影響，進(jìn)而降低光信號(hào)的傳輸效率。此外，頻繁的彎曲和伸縮會(huì)使光纖的機(jī)械性能變差，增加光纖斷裂的風(fēng)險(xiǎn)。當(dāng)內(nèi)窺鏡出現(xiàn)圖像質(zhì)量下降、亮度減弱等問題，且排除其他部件故障后，很可能是光纖老化或磨損所致，需要對(duì)光纖進(jìn)行檢查和修復(fù)。

　　As the usage time increases, the optical fiber will gradually age and its optical performance will decline. The outer protective cover of the optical fiber will also wear out due to long-term use, causing the internal fiber to be exposed to the air and affected by oxidation, pollution, etc., thereby reducing the transmission efficiency of optical signals. In addition, frequent bending and stretching can deteriorate the mechanical properties of optical fibers and increase the risk of fiber breakage. When the endoscope experiences issues such as decreased image quality and reduced brightness, and other component failures are ruled out, it is likely due to fiber aging or wear, requiring inspection and repair of the fiber. 

　?。ㄈ┪廴九c雜質(zhì)侵入

　　（3） Pollution and impurity invasion

　　在醫(yī)療或工業(yè)環(huán)境中，內(nèi)窺鏡的光纖容易受到污染。比如在醫(yī)療手術(shù)中，血液、組織液等可能會(huì)附著在光纖表面，阻擋光線的傳輸；在工業(yè)檢測(cè)時(shí)，粉塵、油污等雜質(zhì)也會(huì)侵入光纖束內(nèi)部，影響光信號(hào)的傳導(dǎo)。如果污染較為嚴(yán)重，僅通過常規(guī)清潔無法解決問題，就需要對(duì)光纖進(jìn)行專業(yè)修復(fù)，去除污染物，恢復(fù)光纖的透光性能。

　　In medical or industrial environments, the optical fibers of endoscopes are prone to contamination. For example, in medical surgery, blood, tissue fluids, etc. may adhere to the surface of optical fibers, blocking the transmission of light; During industrial testing, impurities such as dust and oil can also invade the interior of fiber bundles, affecting the transmission of optical signals. If the pollution is severe and cannot be solved by conventional cleaning alone, professional repair of the fiber optic cable is needed to remove pollutants and restore its transparency. 

　　（四）連接部位故障

　?。?） Connection failure

　　內(nèi)窺鏡的光纖與光源、圖像傳感器等部件通過連接器相連。這些連接部位在長(zhǎng)期使用過程中，可能會(huì)出現(xiàn)松動(dòng)、氧化或損壞等問題，導(dǎo)致光信號(hào)傳輸不穩(wěn)定或中斷。例如，連接器的接口處氧化會(huì)增加光信號(hào)的損耗，造成圖像模糊；連接松動(dòng)則可能使光纖接觸不良，出現(xiàn)畫面閃爍的現(xiàn)象。當(dāng)此類問題發(fā)生時(shí)，除了檢查和修復(fù)連接器外，還可能需要對(duì)光纖的連接端進(jìn)行重新處理和修復(fù)，以確保光信號(hào)能夠穩(wěn)定傳輸。

　　The optical fibers of the endoscope are connected to components such as the light source and image sensor through connectors. These connection points may become loose, oxidized, or damaged during long-term use, leading to unstable or interrupted optical signal transmission. For example, oxidation at the interface of the connector will increase the loss of optical signals, causing image blurring; Loose connections may result in poor fiber optic contact and flickering of the image. When such problems occur, in addition to checking and repairing the connector, it may also be necessary to reprocess and repair the fiber optic connection end to ensure stable transmission of optical signals. 

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