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在行颅脑、颈胸椎手术时，常常需要有头架支撑。理想的头架不但使病人有一个舒适的体位，在术中固定稳定，而且能方便术者操作。过去常用的旧式头架多为圆形或月牙形的附有支撑垫，在使用过程中不适用于全麻插管病人的俯卧位手术，侧卧位手术时体位也常常固定不牢。小儿手术时?
In head and neck thoracic surgery, head support is often required. The ideal headgear not only allows the patient to have a comfortable position, but is stable and stable during the operation, and it can be easily operated by the operator. In the past, the old-fashioned headrests used in the past were mostly round or crescent-shaped with supporting cushions. They are not suitable for the prone position surgery of general anesthesia intubation patients during operation, and the postures are often not stable during the lateral decubitus position. Pediatric surgery?