脚踏式空气压力双对比造影灌肠器河北省行唐县医院放射科李青云，李阳为适应结肠双对比造影检查需要，我科自制一种脚踏式空气压力双对比造影灌肠器，经二年来百余例临床应用，效果良好。现介绍如下：１结构和原理本双对比造影灌肠器主要由闭式气压瓶与脚踏注气装置两部分... Foot-pressure double comparison contrast imaging appliance Xingtang County, Hebei Province, Department of Radiology Li Qingyun, Li Yang in order to meet the needs of double contrast colonoscopy check, our department made a double-contrast air pressure foot appliance appliance, after two years More than 100 cases of clinical application, the effect is good. Are introduced as follows: 1 structure and principle of this double contrast imaging appliance mainly by the closed-pressure gas cylinder and foot gas injection device two parts ...