大多数经皮肾取石术病人没有集尿系统梗阻及肾实质萎缩,在针刺径路上可引起明显的出血,进入集尿系统可影响结石的观察。为此,作者提出了改进的方法。病人俯卧,局麻下以21、20cm 长之Cope 针行肾盂穿刺。可以超声或IVP 导向,在阳性结石则可直接穿刺。一旦刺入肾盂,先抽吸少量尿液,然后置入-0.018时SMG 衣钩型导丝,用一3F 多侧孔扩张器置换穿刺针,经该导管可灌洗集 Most patients with percutaneous nephrolithotomy do not have urinary system obstruction and renal atrophy, can cause significant bleeding in the acupuncture path, enter the urine collection system can affect the observation of stones. To this end, the author put forward an improved method. Patient prone, under local anesthesia with 21,20 cm long Cope needle peritoneal puncture. Ultrasound or IVP guidance, the positive stones can be directly punctured. Once punctured into the renal pelvis, first aspirate a small amount of urine and then place the -0.018 SMG hook-type guide wire with a 3F multi-lateral orifice dilator to replace the puncture needle that can be lavaged