double blade rectal speculum

例句：

1. 1. The doctor used the double blade rectal speculum to examine the patient's anus.
   医生使用双重刀片直肠检查器来检查患者的肛门。
2. 2.During the examination, the doctor found a small tumor on the patient's rectum.
   在检查过程中，医生发现患者直肠里有一个小肿瘤。
3. 3. The patient was relieved to know that the double blade rectal speculum could help detect early cancer signs.
   患者很高兴知道双重刀片直肠检查器可以帮助检测早期癌症迹象。