pulmonary valve knife

例句：

1. 1.The surgeon used a pulmonary valve knife to repair the damaged heart valve.
   外科医生使用肺动脉瓣剪来修复受损的心脏瓣膜。
2. 2.During surgery, the surgeon used a pulmonary valve knife to cut through the tissue.
   在手术过程中，外科医生使用肺动脉瓣剪来切开组织。
3. 3. The patient's condition improved significantly after the pulmonary valve knife was inserted.
   患者的病情在插入肺动脉瓣剪后明显改善。