目的 :建立颌面部破冲复合伤模型 ,并初步研究颌面部爆炸伤的特点 .方法 :采用雷管作爆炸源 ,滑膛枪发射钢珠模拟破片 ,同步测速及测压系统检测致伤参数 ,建立致伤模型 .整个致伤模型为一同步控制系统 ,由破片发射触发 .由破片对犬颌面部致伤 ,雷管悬于弹着点上方 ,爆距设计为 OBJECTIVE: To establish the model of maxillofacial blasting injury and to study the characteristics of blast injury in maxillofacial region.METHODS: Detonator was used as the source of explosion, the steel ball simulating fragment of smoothbore gun firing, synchrotron velocimetry and pressure measurement system were used to detect the injury parameters and establish Injury model. The entire injury model for a synchronous control system, triggered by the fragment launch. Fragment of the canine maxillofacial injury, detonator hanging at the top of the bomb point, the design of the burst distance