32％氮氧混合气潜水作业水下阶段减压表的计算与动物实验验证  

Calculation of underwater decompression table for the 32% nitrogen-oxygen mixed gas dive and verification of the table with animal experiments

作　　者：廖昌波[1] 方以群[1] 王慧玲[2] 孙永军[1] 刘晓波[1] 攸璞[1] 姚健[1] 

机构地区：[1]海军医学研究所,上海200433 [2]北京大学遥感与地理信息系统研究所

出　　处：《中华航海医学与高气压医学杂志》2013年第2期98-100,114,共4页Chinese Journal of Nautical Medicine and Hyperbaric Medicine

基　　金：海后卫生部十一五课题（AHJ09J008）

摘　　要：目的制订32％氮氧（32％氧＋68％氮）混合气水下阶段减压表。方法根据Haldane理论，确定适合32％氮氧混合气水下阶段减压表计算的假定时间单位、理论组织分类、氮过饱和安全系数及其选取方法，建立潜水减压表的计算方法；通过376羊次、94个加压方案的动物实验，观察动物出舱后的行为学改变，检测多普勒气泡音及肺、脑组织病理学变化。结果按计算得到的减压表加减压出舱后的动物均未出现行为学异常；多普勒血流气泡音检测均为零级；肺、脑组织病理学结果显示，组织结构清晰，未见充血水肿。结论理论计算得到的减压方案安全可靠。Objective To develop the underwater decompression table for the 32% nitrogen-oxygen mixed gas （32% oxygen and 68% nitrogen ） diving operations. Methods In accordance with the Haldane theory, the assumed time units, the classification of tissue compartments, the nitrogen super-saturation safety coefficient and the selection of methods used for the calculation of 32% nitrogen-oxygen mixed gas diving table were properly selected, and the calculating method for the diving decompression table was thus firmly established. Through animal experiments with 376 goat times and 94 compression profiles, Doppler ultrasonic gas bubble detection and ethological changes of the animals were monitored or observed, following decompression to the surface. Results By using the developed decompression table, no abnormal ethological changes in the animal behavior could be detected after compression and decompression to the surface, and the Doppler bubble sound grade was almost zero. Pulmonary and cerebral pathological observations indicated that there were no congestion and edema in the tissues. Conclusions The decompression table developed with theoretical calculation seemed to be safe and reliable.

关 键 词：氮氧混合气潜水 减压表 假定时间单位 

分 类 号：R84[医药卫生—航空、航天与航海医学]