| 单词 | halo device | 
| 释义 | halo devicehalo deviceOrthopedics A device used to manage cervical spine injuries to minimize neurological damage, requiring long-term immobilization; in the halo device, pins are inserted on the outer skull for skeletal traction, using a 2-3 kg weight for upper cervical injuries and 10-15 kg for lower cervical injuries | 
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