obturator branch

例句：

1. 1.The surgeon used a special obturator branch to remove the tumor.
   外科医生使用一种特殊的导管分支来切除肿瘤。
2. 2.The anesthesiologist inserted the obturator branch into the patient's chest cavity.
   麻醉师将导管分支插入患者的胸腔。
3. 3. The obturator branch was crucial for maintaining proper blood flow during surgery.
   导管分支在手术期间保持适当血流至关重要。