摘要
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 5、10、15cm。记录致伤参数 (撞击速度、能量吸收、体表压力 ) ,观察动物伤情。结果 :该模型能稳定地模拟犬颌面部的爆炸伤 ,爆炸冲击波压力随爆距减小而急剧升高。犬颌面部伤情严重。损伤范围广 ,并有心、肺、脑等脏器的损伤 ,损伤程度随能量吸收与冲击波压力的升高而加重。结论 :该破冲复合伤模型能较真实地模拟爆炸伤的致伤效果 ,可用于颌面部爆炸伤的基础理论及临床救治研究。颌面部爆炸伤具有伤情重。
Objective: To establish an efficient animal model for the study of explosive injury in maxillofacial region.Methods: The detonator, steel spheres as fragments simulants shot by smooth-bore barrel and a synchronizer were used to define the wound model in the maxillofacial region of 18 dogs. The whole system was triggered when shooting. Wounding parameters and the changes of targets after explosion were observed and recorded. Results: The overpressure of blast wave decreased exponentially according to the distance from explosive. After injury, the local damage of dogs was serious and extensive compounded with the damages in heart, lung and brain. The injury was aggravated with the increasing of over pressure and energy absorption. Conclusion: The new wound model can be used for the study of explosive injury in maxillofacial region that is characterized by serious tissue damage and multi-etiology.
出处
《实用口腔医学杂志》
CAS
CSCD
北大核心
2002年第6期504-506,共3页
Journal of Practical Stomatology
关键词
颌面部
爆炸伤
冲击伤
枪弹伤
破片
动物模型
Maxillofacial region
Explosive injury
Blast injury
Gunshot wound
Fragment
Animal model
