ventri-anal shield

例句：

1. 1. The patient was given a ventri-anal shield to prevent any accidental injury during the surgery.
   患者被给予肛门保护器，以防止手术中发生意外伤害。
2. 2. The doctor explained that the ventri-anal shield is used to protect the anus from external injuries.
   医生解释说，肛门保护器是用来保护肛门免受外部伤害的。
3. 3. During childbirth, the ventri-anal shield helps to keep the baby's anus intact and prevent it from being injured.
   在分娩过程中，肛门保护器有助于保持婴儿的肛门完整，防止其受到损伤。