摘要
调查表明,医院医疗文件有不同程度的细菌与HBsAg污染。实验室试验,用2450 MHz微波,在650W功率条件下,可使医院医疗文件达到消毒要求。消毒效果可受温度和文件量影响。表层的文件较中间层文件消毒为慢。
It was found in investigation that the medical documents in hospitals were grossly contaminated by Escherichia coli or HBsAg. In order to look for good method of disinfection of medical documents, the microwave disinfection experiment was carried out in laboratory. The microwave oven used was type ER- 692(2540 MHz, 650W). Microwave irradiation of a pack of documents which was 500g in weight and 12×17 cm^2 in size and was wrapped by a wet white cloth could kill contaminating E. coli, Staphylococcus albus, Shigella flexneri and Salmonella paratyphi B in 2 min, destroy HBsAg and kill spores of Bacillus subtilis var. niger in 3 and 7 min respectively. The optimal temperature at the end of irradiation was 85℃. The efficacy decreased at temperature lower than 85℃ and carbonization of paper was liable to occur when the temperature exceeded 85℃. Longer irradiation time was required for disinfection of papers of upper layer than for that of middle layer. It was neccessary to prolong the irradiation time as the weight of paper increased.
出处
《中国消毒学杂志》
CAS
北大核心
1992年第1期30-34,共5页
Chinese Journal of Disinfection
关键词
微波消毒
医疗文件
细菌芽胞
HBSAG
microwave disinfection
medical document
HBsAg
Bacterial spore Escherichia coli
Staphylococcus albus
Shigellaflexneri
Salmonella paratyphi B
