患者男性,40岁.疑小肠肿瘤于1990年4月10日行肠系膜上动脉造影.Seldinger’s法穿刺右股动脉后,置入塑料导管鞘,经鞘插入7F导管时遇阻力,即退出导管.用带35cm短导丝的7F扩张管试图疏通导管鞘时,发现导管鞘与鞘座分离,鞘管脱入股动脉.X线下鞘管不显影.扩大穿刺部位,暴露股动脉,经留置股动脉内的扩张管旁插入三抓取石钳,未夹到鞘管.但探查感右髂总动脉处有阻力, The patient was male, age 40. The suspected small intestinal tumor underwent superior mesenteric artery angiography on April 10, 1990. The Seldinger’s method punctured the right femoral artery and placed the plastic catheter sheath in place of the 7F catheter and encountered a resistance to exit the catheter. The 7F dilation tube with a 35-cm short guidewire attempted to clear the catheter sheath and found that the catheter sheath was detached from the sheath and the sheath was removed into the femoral artery. The sheath was not visualized under the X-ray. The puncture site was expanded to expose the femoral artery, Of the dilatation of the tube inserted into the three grasping stone clamp, not caught sheath.However, there is resistance to explore the right common iliac artery,