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目的观察一种复方过氧化氢消毒剂对胃镜的消毒效果,为实际消毒应用提供实验依据。方法通过载体定量和定性杀菌试验方法,对该复方过氧化氢消毒剂消毒胃镜的效果及相关性能进行实验观察。结果该复方过氧化氢消毒剂原液含过氧化氢58.4 g/L,p H值2.8。用该复方消毒剂原液作用5 min,对染于胃镜管管腔内的枯草杆菌黑色变种芽孢杀灭对数值>4.00;作用15 min可达到完全杀灭。用该复方过氧化氢消毒剂在室温条件下连续浸泡胃镜管腔6周后,对管腔不锈钢结构无腐蚀,管壁橡胶结构无膨胀、不软化。结论该复方过氧化氢消毒剂对胃镜可达到高效消毒水平,对内窥镜相关材料无腐蚀。
Objective To observe the disinfection effect of compound hydrogen peroxide disinfectant on gastroscope and provide experimental basis for practical disinfection. Methods The quantitative and qualitative bactericidal test methods were used to observe the effect and relative performance of the compound hydrogen peroxide disinfecting gastroscope. Results The compound hydrogen peroxide disinfectant stock solution containing hydrogen peroxide 58.4 g / L, p H value of 2.8. With the compound disinfectant stock solution for 5 min, the killing rate of Bacillus subtilis black stain in the tube of gastric tube was> 4.00; the effect was completely eliminated after 15 min. With the compound hydrogen peroxide disinfectant at room temperature for 6 weeks after immersion in the gastroscope tube chamber, no corrosion of the lumen stainless steel structure, wall rubber structure without swelling, not softening. Conclusion The compound hydrogen peroxide disinfectant gastroscope can reach the level of efficient disinfection of the endoscope-related materials without corrosion.