基于化学渗透增强剂的复杂器械消毒预处理方法研究OA

Objective To improve inadequate penetration issues in traditional disinfection methods for complex medical instruments due to intricate structures.Methods A formulation system comprising sodium dodecyl sulfate,polyethylene glycol 400,and disodium ethyl-enediaminetetraacetate was employed to pretreat 30 each of gastroscopes,catheters,and laparoscopic instruments at 1.2%concentration,50℃temperature,and 10-minute duration.Penetration enhancer pretreatment group,traditional pretreatment group,and blank control group were established.Surface tension,penetration depth,and bacterial clearance rate were measured.Results Compared to the blank control group,the surface tension decreased from 72 mN/m to 34.5 mN/m(P＜0.001).Compared to the traditional pretreatment group,the pene-tration depth increased by 154%(P＜0.001),the bacterial clearance rate reached 99.9%(P＜0.001),the qualified rate of instrument disinfection improved from 95.3%to 98.8%(P＜0.001).Conclusion Chemical penetration enhancer-based pretreatment methods signif-icantly improve disinfection efficacy for complex instruments,providing an effective technical solution for medical instrument disinfection.