撞击致肺损伤发生机制及防护的实验研究  

Experimental Study on the Mechanism and Protection of Impact Lung Injury

作　　者：牛立志[1] 刘维永[1] 罗新林[1] 

机构地区：[1]西安第四军医大学西京医院心胸外科

出　　处：《中国胸心血管外科临床杂志》1996年第4期237-239,共3页Chinese Journal of Clinical Thoracic and Cardiovascular Surgery

基　　金：全军"八五"攻关项目

摘　　要：实验通过呼吸同步撞击装置，在不同压缩率（Ｃ）和速度（Ｖ）组合条件下，分６组撞击兔右侧胸壁，研究撞击致肺损伤的机制和气囊防护作用。结果显示：肺挫伤存在两种不同形式：即低速高位移时的“挤压型损伤”与高速低位移时的“冲击型损伤”。肺损伤程度与速度和压缩率的乘积密切相关ｒ＝０．９３。呼吸周期对伤情影响不大，气囊对肺有防护作用，在并发损伤中以肋骨骨折为主。This experiment was designed to study the mechanism and protection of lung contusion by impact through impact system controlled by respiratory cycle. Fourty-eight rabbits are randomly divided intosix groups by different combination of impact velocity (V) and compression (C). Results showed that there were two different kinds of mechanism of lung injury: 'Crushing type' in low velocity and more compression; 'blast type' in high velocity and less compression.Lung injury severity is related to VC. There is no obvious difference between end inspiration and end expiration on lung injury, and the air bag deployment is helpful in protection.

关 键 词：肺损伤 撞击伤 病理 防护 

分 类 号：R655.3[医药卫生—外科学]