aorta valve dilator

例句：

1. 1.The aortic valve dilator was inserted to relieve the pressure on the heart.
   插入主动脉瓣扩张器以减轻对心脏的压力。
2. 2.The patient required an aortic valve dilator to prevent further complications.
   患者需要使用主动脉瓣扩张器以防止进一步并发症。
3. 3.The aortic valve dilator was removed after the surgery, and the patient made a full recovery.
   手术完成后取出了主动脉瓣扩张器，患者完全康复。