Japanese Society for Infection Prevention and Control-Online Journal

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Article in Japanese

Problem of Washing Evaluation Method for Bedpan Washers Disinfector

Takayuki OHISHI
Department of Infection Control and Prevention, Total Quality Management Center, Saiseikai Yokohamashi Tobu Hospital

The bedpan washer disinfector (BWD) is a device that uses water, detergent, and steam to clean and disinfect toilet bowls and urinary tract. Toilet bowls and urinary tracts can cause the spread of infection if not properly cleaned and disinfected by BWD. In this study, we investigated the washing effects of BWD and operational issues using pseudo-pollutants. The subjects of the experiment were bed pans, bucket containers for portable toilets, and urinary tract. The washing evaluation was carried out according to the methods of England and Sweden specified in ISO / TS 15883-5: 2005. After applying pseudo-pollutants, washing was performed with BWD. Neither the British nor Swedish methods could completely remove the pseudo-pollutants, and the results between the two methods were inconsistent. The two washing evaluation methods differed in the washing evaluation results of BWD, and the accuracy as a tool for guaranteeing validation remained questionable. In addition, it was suggested that washing with BWD would result in insufficient washing of the handle of the urinary tracts, and that urine might remain at the joint of the urinary tract.

Key words：bedpan washer disinfector, pseudo-pollutant, washing evaluation, toilet bowl, urine tract

e-mail: endlessjealousy＠gmail.com

Received: October 5, 2020
Accepted: April 5, 2021

36 (4)：231─234,2021