valvulotome

例句：

1. 1. The surgeon used a valvetome to cut the heart's valves.
   外科医生使用瓣膜切割器切开心脏的瓣膜。
2. 2. The patient needed a valvulotomy to repair his damaged heart valves.
   病人需要瓣状物手术来修复他的受损心脏瓣膜。
3. 3.During surgery, the surgeon used a valvetome to remove the damaged valves.
   在手术中，外科医生使用瓣膜切割器移除受损的瓣膜。