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目的了解环氧乙烷灭菌器使用过程中产生的环氧乙烷水平和分布,确定职业病防治关键控制点。方法按照《工作场所空气中环氧化合物的测定方法》对某医院环氧乙烷灭菌器运行过程中产生的职业病危害因素进行检测。结果灭菌过程中空气中环氧乙烷浓度为0.01 mg/m~3;灭菌完成后打开炉门至处理灭菌包完毕过程中空气中环氧乙烷浓度为0.82 mg/m~3,灭菌房内空气中环氧乙烷残留量达2.56 mg/m~3;灭菌后抽风0.5 h后,灭菌包内环氧乙烷残留量达142.59 mg/m~3;灭菌后抽风2 h后,检测灭菌包内环氧乙烷残留量为45.58 mg/m~3。结论护士处理灭菌包时接触环氧乙烷浓度超标,关键控制点为取件、灭菌包处理操作及设备事故状态。
Objective To know the level and distribution of ethylene oxide produced during the use of ethylene oxide sterilizer and to determine the key control points of occupational disease prevention and control. Methods According to “Determination of epoxy compounds in workplace air”, the occupational hazard factors generated during the operation of ethylene oxide sterilizer in a hospital were tested. Results The concentration of ethylene oxide in the air during sterilization was 0.01 mg / m ~ 3. After the sterilization was completed, the temperature of ethylene oxide in the air was 0.82 mg / m ~ 3, The residual amount of ethylene oxide in the air in the sterilization room was up to 2.56 mg / m 3; after 0.5 h of sterilization, the residual ethylene oxide in the sterilization package reached 142.59 mg / m 3; after sterilization, After 2 h, the residual ethylene oxide in the sterilization package was 45.58 mg / m ~ 3. Conclusion The nurses’ exposure to ethylene oxide exceeded the standard when handling sterilization packs. The key control points were pick-up, sterilization pack handling and equipment accident status.