在血管内介入治疗过程个，常需要超选择血管插管，需要插越数个血管分文。但有时为了插越一个血管分又进入靶血管，经过试插数次也不一定能成功。作者在实践中总结了一点经验，介绍如下。如果插入的靶血管相对于非靶血管在逆时针方向上走行，插泥鳅导丝时就把导丝的弯头放在朝 Interventional treatment in the process of a, often need ultra-select vascular cannulation, need to plug a few blood vessels sub-text. But sometimes in order to insert a blood vessel and then into the target vessel, after several tests may not be successful. The author summed up a little experience in practice, introduced as follows. If the inserted target vessel travels anticlockwise relative to the non-target vessels, insert the loach guide wire with the elbow of the guide wire