结石检查器

例句：

1. 1. The doctor uses a urine test to detect kidney stones.
   医生使用尿检来检测肾结石。
2. 2. The patient needs an ultrasound to diagnose the presence of calculi in his gallbladder.
   患者需要进行超声波检查以诊断其胆囊中的结石。
3. 3. The surgeon used a lithotripter to remove the kidney stone from the patient's kidney.
   外科医生使用碎石机从患者的肾脏中取出了肾结石。