外来器械灭菌过程中灭菌参数监测研究

Study of sterilization parameters monitoring of external equipment during terilization process

目的探讨外来器械灭菌过程中灭菌参数的监测方法,以提高外来器械灭菌质量控制。方法将重1.24 kg骨科外来器械用硬质容器盒包装,在压力蒸汽灭菌仪中采用134℃240 s灭菌程序灭菌3锅次,灭菌前均在其包内最难灭菌部位安放内置式温度压力检测仪的温度、压力监测探头,直接监测包内器械灭菌温度、压力、时间参数,同时进行化学和生物监测对比。比较3种监测方式下外来器械的灭菌参数监测效果。结果温度压力检测仪监测到外来器械的木质手柄监测点和管腔监测点都有不同程度灭菌升温延迟现象,其中检测膨胀块启子手柄管腔内检测点的灭菌升温延迟现象最严重,最多延迟125 s,灭菌暴露时间为115 s;同时进行的化学监测、生物监测结果均合格。结论温度压力检测仪能直接精准地监测外来器械灭菌暴露时间,准确提供灭菌参数,进一步为压力蒸汽灭菌外来器械提供安全保障。

Objective To explore the monitoring method of sterilization parameters in the sterilization process of external equipment to improve its sterilization quality control.Methods The orthopedic external equipment weighing 1.24 kg was packed in a hard container and sterilized in a pressure steam sterilizer with 134℃240 s sterilization procedure for 3 times.Before sterilization,the temperature and pressure monitoring probes of the built-in temperature and pressure detectors were placed in the most difficult parts of the bag to directly monitor the sterilization temperature,pressure,and time parameters,meanwhile the chemical and biological monitoring comparison was performed.The monitoring effects of sterilization parameters of external equipment were compared among the three monitoring methods.Results The temperature and pressure detector found different degrees of sterilization and temperature rise delay phenomenon in the wooden handle and the lumen monitoring points,among them,the delay of the test point at the handle of the expansion block opener was the most serious,with a maximum delay of 125 s,the sterilization exposure time was 115 s;and the results of simultaneously conducting chemical and biological monitoring were all qualified.Conclusion The temperature and pressure detector can directly and accurately monitor the sterilization exposure time of external equipment,accurately provide the sterilization parameters,and further ensure the safety of the pressure steam sterilization of external equipment.