gastrotonometer

例句：

1. 1.The gastrotonometer was used to measure the patient's stomach pressure.
   胃内压力计被用来测量病人的胃内压力。
2. 2.The doctor ordered a gastrotonometer for the patient's diagnosis.
   医生为患者开具了胃内压力计的诊断单。
3. 3.During the procedure, the gastrotonometer was inserted into the patient's stomach.
   在手术过程中，胃内压力计被插入患者的胃中。