高处坠落伤是指人员从比自身身高高出2倍以上的地方掉落在地面上,由于重力加速度,可造成头部、颈部、胸部、四肢等部位的严重外伤,伤员预后很差,非死即残。近几年,这种意外事件屡有发生,有高层建筑工地施工人员不慎跌落的,有清洁高层建筑外墙 Fall injury at height means that personnel fall from the ground more than twice as high as their own height and can cause severe trauma to the head, neck, chest, limbs and other parts due to acceleration of gravity. The prognosis of the wounded is poor, Not dead or disabled. In recent years, such accidents have occurred frequently, high-rise construction site construction workers accidentally dropped, there are clean high-rise building exterior