手术衣关键区域阻干态微生物穿透性能研究

Performance of resistance to dry microbial penetration of key areas of surgical gowns

目的研究手术衣关键区域阻干态微生物穿透性能,确定关键区域评价阻干态微生物穿透性能的必要性。方法选取一次性使用手术衣(面料为聚丙烯SMS非织造布)和可重复使用手术衣(面料为100%纯棉机织物、99%聚酯纤维+1%碳纤维机织物),各取5组样本,依据标准YY/T 0506.5—2009和YY/T 0506.6—2009的试验方法分别进行阻干态微生物穿透检测和阻湿态微生物穿透检测。结果一次性使用手术衣关键区域阻干态微生物穿透试验结果为1~4 CFU,阻湿态微生物穿透试验有2个结果(A1、A2)<2.8 IB,不符合标准要求。可重复使用手术衣关键区域阻湿态微生物穿透试验结果均>2.8 IB,阻干态微生物穿透试验有3个结果(B1、B2、C1)>300 CFU。结论一次性使用手术衣关键区域阻干态微生物穿透性能良好,可重复使用手术衣关键区域阻干态微生物穿透性能较差,建议手术衣关键区域应评价阻干态微生物穿透性能。

Objective To study the performance of resistance to dry microbial penetration of key areas of surgical gowns,determine the necessity of evaluation on resistance to dry microbial penetration of key areas.Methods Disposable surgical gowns(fabric was polypropylene SMS non-woven)and reusable surgical gowns(fabric was 100%cotton woven fabric,99%polyester fiber+1%carbon fiber woven fabric)were selected,5 groups of specimens were taken respectively,test method of resistance to dry and wet bacterial penetration were performed according to YY/T 0506.5-2009 and YY/T 0506.6-2009 test method.Results Resistance to dry microbial penetration of key area of disposable surgical gowns were 1-4 CFU,two results(A1,A2)of penetration test of resistance to wet microbial penetration were<2.8 IB,which did not meet the standard requirements.Resistance to wet microbial penetration of reusable surgical gowns were all>2.8 IB,three results(B1,B2,C1)of test of resistance to wet micro-bial penetration were>300 CFU.Conclusion Resistance to dry microbial penetration performance of key areas of surgical gowns is good,key areas of reusable surgical gowns have poor performance of resistance to wet penetration,it is suggested that resistance to dry microbial penetration of key areas of surgical gowns should be evaluated.