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E11等首次成功地用内镜逆行法激光碎石技术击碎并取出胆总管结石。方法所用的Nd∶YAG激光器波长1064nm,脉冲频率、能量及续时连续可调。导光纤维采用直径0.2mm的高韧性石英纤维。采用Olympus母子镜和常规JF-3,7,TJF-10及Pentax FD34H内镜。一般在内镜下行十二指肠乳头肌切开2～3天后进行。根据结石的位置选择直视或X线监视下两种操作方法,后者需使用特制的碎石网(外径3.2mm)或气囊导管(外径1.8mm)来保持导光纤维在胆管中心以免伤及胆管壁。
E11, etc. for the first time successfully with endoscopic retrograde laser lithotripsy crushed and remove the common bile duct stones. The Nd: YAG laser used in the method has a wavelength of 1064nm, and the pulse frequency, energy and duration are continuously adjustable. Light guide fiber diameter 0.2mm high toughness quartz fiber. Olympus mother-son mirror and conventional JF-3,7, TJF-10 and Pentax FD34H endoscopy. General endoscopic descending duodenal papillary muscles cut 2 to 3 days after. According to the location of stones choose direct or X-ray monitoring of the two operating methods, the latter need to use a special lithotripsy (diameter 3.2mm) or balloon catheter (OD 1.8mm) to keep the optical fiber in the bile duct center to avoid Injury and bile duct wall.