Valvula venae cavae inferioris

例句：

1. 1. Thedoctor performed a surgery to repair the damagedvalve in the patient's heart.
   医生为患者心脏受损的瓣膜进行了手术修复。
2. 2. During the operation, the surgeon carefullyremoved the damaged valve and replaced it witha new one.
   在手术过程中，外科医生小心翼翼地移除了受损的瓣膜，并用新的瓣膜替换了它。
3. 3. Thepatient was discharged from the hospital aftersuccessful valve replacement surgery.
   患者在成功完成瓣膜置换手术后出院。