epidural space的用法和样例：
例句
- Here we report a case of subdural catheterization during the attempt of epidural anesthesia for a gynecological procedure.
本文及报告于妇产科手术的病例在当试硬脊膜外腔麻醉时，意外地将导管置入硬脊膜下腔，并注入局部麻醉剂。 - Obstruction of the epidural catheter is an annoying and troubling complication when we practice epidural analgesia.
摘要当运行硬脊膜外腔止痛术时，硬脊膜外腔导管阻塞是令人讨厌及困扰的问题。
