metacarpus retractor and elevator

例句：

1. 1. The metacarpus retractor and elevator are essential tools for treating hand injuries.
   手部肌肉拉伤器和提升器是治疗手部损伤的必备工具。
2. 2. The patient was taken to the hospital with a metacarpus retractor and elevator in place.
   患者被送往医院，手部肌肉拉伤器和提升器已经安装好。
3. 3. The doctor used the metacarpus retractor and elevator to relieve the patient's pain.
   医生使用手部肌肉拉伤器和提升器来缓解患者的疼痛。