腹腔鏡作為外科手術的 “眼睛”，其精密程度堪比微縮版的光學儀器，一旦出現故障，維修過程就像給這臺 “神器” 做 “微創手術”，每一個操作都需謹小慎微。從拆解到組裝，從清潔到調試，這些關鍵要點決定了維修的成敗與器械的安全性。

　　Laparoscopy, as the "eye" of surgical procedures, has a precision comparable to miniature optical instruments. Once a malfunction occurs, the repair process is like performing a "minimally invasive surgery" on this "artifact", requiring careful attention to every operation. From disassembly to assembly, from cleaning to debugging, these key points determine the success or failure of maintenance and the safety of equipment.

　　拆解：像 “拆鐘表” 一樣精準定位故障

　　Disassembly: Accurately locate faults like dismantling a clock

　　維修的第一步是精準判斷故障源，常見問題如鏡頭模糊（可能因內部鏡片污染或損壞）、光束不亮（光纖斷裂或接口接觸不良）、器械通道卡頓（異物堵塞或機械結構磨損）。拆解時必須使用專用工具（如微型螺絲刀、鑷子），避免蠻力操作 —— 曾有案例顯示，非專業人員用普通鉗子拆卸鏡頭，導致螺紋滑絲，原本簡單的清潔變成整體更換。對于集成度高的部件（如攝像頭接口），需先記錄接線順序和位置，必要時拍照存檔，防止組裝時出現 “多余零件” 的尷尬。

　　The first step in maintenance is to accurately identify the source of the malfunction. Common problems include blurry lenses (possibly due to internal lens contamination or damage), dim light beams (fiber breakage or poor interface contact), and instrument channel jamming (foreign object blockage or mechanical structure wear). Special tools (such as micro screwdrivers and tweezers) must be used during disassembly to avoid brute force operation - there have been cases where non professionals used ordinary pliers to disassemble lenses, causing thread slippage and turning simple cleaning into complete replacement. For highly integrated components (such as camera interfaces), it is necessary to first record the wiring sequence and position, and if necessary, take photos for archiving to prevent the embarrassment of "extra parts" during assembly.

　　清潔：對抗 “微米級污染” 的持久戰

　　Cleanliness: a protracted battle against 'micron level pollution'

　　腹腔鏡的光學系統對污染極其敏感，0.1mm 的灰塵就可能導致視野模糊。清潔鏡頭時，禁用普通酒精或紙巾，需用無塵布蘸取專用光學清潔劑（成分多為異丙醇），沿鏡片同心圓方向輕拭，避免來回擦拭產生劃痕。光纖束的清潔更需耐心 —— 若發現端面發黑，需用光纖切割刀重新打磨，打磨后需通過顯微鏡檢查端面平整度（合格標準為平面度誤差＜5μm）。對于金屬鞘管內的血漬或組織殘留，不能僅用清水沖洗，需配合酶洗液超聲震蕩（功率控制在 30-40kHz，時間不超過 5 分鐘），再用高壓氣槍吹干，防止水汽殘留導致內部銹蝕。

　　The optical system of laparoscopy is extremely sensitive to contamination, and 0.1mm dust may cause blurred vision. When cleaning the lens, do not use regular alcohol or paper towels. Instead, use a dust-free cloth dipped in specialized optical cleaning agents (mostly isopropanol) and gently wipe along the concentric circles of the lens to avoid scratches caused by back and forth wiping. The cleaning of fiber bundles requires more patience - if the end face is found to be blackened, it needs to be re polished with a fiber optic cutting knife. After polishing, the flatness of the end face needs to be checked under a microscope (the qualified standard is flatness error<5 μ m). For blood stains or tissue residues inside the metal sheath tube, it is not enough to rinse with clean water alone. It is necessary to use enzyme wash solution and ultrasonic oscillation (power controlled at 30-40kHz, time not exceeding 5 minutes), and then dry it with a high-pressure air gun to prevent internal corrosion caused by water vapor residue.

　　零件檢修：從 “發絲裂痕” 中發現隱患

　　Parts maintenance: hidden dangers discovered from "hair cracks"

　　鏡頭鏡片組的檢修需借助體視顯微鏡（放大倍數≥10 倍），重點觀察鏡片是否有脫膜、裂紋或氣泡 —— 曾有維修案例中，表面看似完好的鏡片在強光照射下，發現細微的徑向裂紋，這種隱患在手術中可能因溫度變化導致鏡片崩裂。金屬部件（如穿刺錐、操作鉗）的檢修需關注關節軸的磨損程度，可用塞尺測量軸孔間隙（正常應＜0.1mm），超過則需更換軸套或銷釘。光纖束的斷點檢測需使用光源檢測儀，將光纖一端對準光源，另一端觀察光斑均勻性，若出現暗斑或亮度衰減超過 30%，則需更換整束光纖。

　　The maintenance of the lens assembly requires the use of a stereo microscope (magnification ≥ 10x), with a focus on observing whether the lens has detachment, cracks, or bubbles - in previous maintenance cases, seemingly intact lenses were found to have subtle radial cracks under strong light, which may cause lens breakage due to temperature changes during surgery. The maintenance of metal components (such as puncture cones and operating pliers) should pay attention to the degree of wear of the joint shaft. The clearance between the shaft holes can be measured with a feeler gauge (normally<0.1mm). If it exceeds this limit, the shaft sleeve or pin needs to be replaced. The breakpoint detection of fiber optic bundles requires the use of a light source detector. Align one end of the fiber optic cable with the light source and observe the uniformity of the light spot at the other end. If dark spots or brightness attenuation exceeds 30%, the entire fiber optic bundle needs to be replaced.

　　組裝：“納米級精度” 的復位藝術

　　Assembly: The art of resetting with "nanoscale precision"

　　組裝鏡頭時，鏡片組的軸向間距需嚴格按原廠參數（通常精確到 0.01mm），可用千分尺配合墊片調整，間距過大或過小都會導致焦距偏移。攝像頭與鏡體的連接需注意螺紋咬合度，正確的手感是 “輕微阻力但能順暢旋入”，若過緊可能是螺紋錯位，過松則會影響圖像穩定性。器械通道的密封件安裝是防漏關鍵，O 型圈需涂抹專用硅基潤滑劑（禁用石油基油脂，以防老化），并檢查唇邊是否外翻，安裝后需進行水壓測試（0.2MPa 壓力下保持 3 分鐘無泄漏）。

　　When assembling the lens, the axial spacing of the lens group must strictly follow the original factory parameters (usually accurate to 0.01mm), which can be adjusted with a micrometer and shims. If the spacing is too large or too small, it will cause focal length deviation. The connection between the camera and the mirror body should pay attention to the degree of thread engagement. The correct hand feel is "slight resistance but smooth screwing in". If it is too tight, it may be due to thread misalignment, and if it is too loose, it will affect image stability. The installation of sealing components in the instrument channel is crucial for leak prevention. The O-ring needs to be coated with a special silicon-based lubricant (petroleum based grease is prohibited to prevent aging), and the lip edge should be checked for outward rotation. After installation, a water pressure test should be conducted (maintain a pressure of 0.2MPa for 3 minutes without leakage).

　　性能測試：比 “術前檢查” 更嚴格的驗收

　　Performance testing: stricter acceptance than preoperative examination

　　維修后的腹腔鏡需通過多層級測試：光學性能測試中，需在分辨率測試板（如 USAF 1951）下，確認能清晰分辨 5-6 組線對（對應分辨率≥100lp/mm）；機械性能測試需模擬手術動作，操作鉗開合 50 次無卡頓，穿刺錐穿刺力≤20N；電氣安全測試要檢測絕緣電阻（≥20MΩ）和接地連續性（接地阻抗＜0.1Ω）。最關鍵的是密封性測試，將鏡體浸入水中，從器械通道注入 0.1MPa 空氣，觀察氣泡量（每分鐘氣泡數≤5 個為合格），任何細微漏氣都可能在手術中導致霧氣干擾視野。

　　The repaired laparoscope needs to pass multi-level testing: in optical performance testing, it is necessary to confirm that 5-6 sets of line pairs can be clearly distinguished under a resolution testing board (such as USAF 1951) (corresponding to a resolution ≥ 100lp/mm); Mechanical performance testing requires simulating surgical actions, operating the forceps open and close 50 times without jamming, and the puncture force of the puncture cone is ≤ 20N; electrical safety testing requires detecting insulation resistance (≥ 20M Ω) and grounding continuity (grounding impedance<0.1 Ω). The most crucial step is the sealing test. Immerse the mirror body in water, inject 0.1MPa air from the instrument channel, and observe the amount of bubbles (≤ 5 bubbles per minute is qualified). Any slight air leakage may cause fog to interfere with the field of view during surgery.

　　滅菌與追溯：給 “神器” 上雙保險

　　Sterilization and traceability: double insurance for "artifacts"

　　維修后的腹腔鏡必須經過低溫滅菌（如環氧乙烷或過氧化氫等離子），滅菌前需拆除不耐高溫部件（如電子元件），并用專用滅菌袋封裝（袋上注明維修日期和部件信息）。建立維修檔案是行業規范 —— 記錄故障現象、更換零件、測試數據等，這些信息不僅用于追溯，還能為后續維修提供參考。曾有醫院因缺失維修記錄，在器械出現重復故障時，無法判斷是舊傷復發還是新問題，導致手術延誤，可見規范記錄的重要性。

　　After repair, the laparoscope must undergo low-temperature sterilization (such as ethylene oxide or hydrogen peroxide plasma). Before sterilization, non high temperature resistant components (such as electronic components) must be removed and sealed in a dedicated sterilization bag (with the repair date and component information indicated on the bag). Establishing maintenance records is an industry standard - recording fault phenomena, replacing parts, testing data, etc. This information is not only used for traceability, but also provides reference for subsequent repairs. There have been hospitals where, due to a lack of maintenance records, it was difficult to determine whether repeated equipment failures were caused by old injuries or new problems, resulting in surgical delays. This highlights the importance of standardized records.

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