手洗い消毒液交換の時期

－ベースン内0.02％ヒビテン液について－

抄録

The purpose of this study is to find the opportune time of and the tolerable number times for effective hand washing of usual disinfection on 0.02% Hibitane (Chlorhexidine) solution setting in a basin.
We examed the effectiveness for removing the bacterium after hand washing with rubbing or simple soaking for estimate time (5, 10, 20, 30, 40, and 60 sec.) in 0.02% Hibitane solution, on fingertips where spreaded those suspension. And we tested the potential activity of disinfection to Staph. aureus and E. coli on the samples which were picked up at every 10 members of 100 student-nurses washed their hand in a basin setting 0.02% Hibitane solution.　The results and conclusion are as follows;
1)　Even after 100 members handwashing in the same basin, Hibitane solution was sufficiently effective disinfecting to Staph. aureus.
2)　Whereas E. coli were not, were still found 60 members hand washing.
3)　White turbidity of solution in a basin were found after 40 members used and dirty turbid were gradually found until 80 members finished.
4)　Contaminated bacteria on fingertips were remained under simple soaking for 60 sec. and under washing with rubbing hand for shorter than 40 sex. in solution.
5)　These suggested that the sign of exchange, using for 0.02％ Hibitane solution in a basin, is the which appear by about 40 members used.