pacing device

例句：

1. 1. The patient's heart rate is being monitored with a pacing device.
   患者正在用节律器监测心率。
2. 2.The doctor used the pacing device to help the patient recover from his stroke.
   医生使用节律器帮助患者从中风中恢复。
3. 3.During surgery, the surgeon uses a pacing device to regulate the patient's heart rate.
   在手术期间，外科医生使用节律器来调节患者的心率。