Recommendations by the Quality Task Group (106)
No reprocessing of kidney bowls or wash bowls in?bedpan washer-disinfectors
B. Amann, M. Bertram, P. Brocheler, D. Diedrich, C. Fassbender, K. Gehrmann,T. Gerasch,A. Jones, S. Krüger, I. Mock, P. Sauer, K. Wiese, U. Zimmermann
The washer-disinfectors regulated by standard EN ISO 15883-3  are also known?colloquially as?BEDPAN WASHER-DISINFECTORS. The terms automatic bedpan?washers or faecal washers are also occasionally used. These washer-disinfectors?(WDs) are primarily designed and intended for disposal of faeces together with?reprocessing of the associated containers such as urine bottles, bedpans and toilet?commode buckets.
依照EN ISO 15883-3標準設計的清洗消毒器通俗地被稱為便盆清洗消毒器。自動便盆清洗器或糞便清洗器這兩個詞有時也會用到。這類清洗消毒器（WDs）最初的設計目的是對與糞便接觸相關容器的再處理，例如尿瓶、便盆和便桶。
However, it can be noted time and again in everyday practice that other?items are also reprocessed in these washer-disinfectors. Contrary to the manual?reprocessing method formerly used for wash bowls, the standard practice now?in many healthcare institutions and homes for the elderly is to reprocess in such?washer-disinfectors also kidney bowls, including those used for oral hygiene,as well as the wash bowls used for basic personal hygiene or partial medicinal?baths.
The technical features of these washer-disinfectors are virtually unable to?demonstrate the required proof of validated processes, and certainly do not assure?the safety expected of modern WDs in a Reprocessing Unit for Medical Devices?(RUMED). THE A0 VALUE REQUIRED FOR SAFE DISINFECTION exceeds the?capacity and technical facilities of the majority of the (older) washer-disinfectors?currently in operation.
In an age of multi-drug resistant organisms there is a particularly high risk of?their transmission when disposing of faeces.
The development of these washer machines dates back to the 1930s . Connected?to the cold-water pipeline (drinking water), the most they could do was to rinse?off the utensils, while their main purpose was to improve the removal of faeces.Hence, manual pre-and, possibly, post-cleaning could not be avoided.
It was not until the 1960s that washer machines also facilitating chemical disinfection?after cleaning were developed. These were operated by staff by activating?the cleaning pushbutton but by no means was such a washer-disinfector equipped?with the programme sequences as we know them today.
A further 30 years would go by before new BEDPAN WASHER-DISINFECTORS?WITH THERMAL DISINFECTION were introduced. Their introduction was expedited?by the knowledge that the majority of central dosing units for chemical disinfectants?were colonized with biofilm.
The bedpan washer-disinfectors regulated by ISO 15883-3, with the unwieldy?title “Washer-disinfectors Part 3: Requirements and tests for washer-disinfectors?employing thermal disinfection for human waste containers” just about?meet the minimum requirements. The term “human waste containers” is somewhat?poorly defined as it also includes, in addition to urine bottles and bedpans,holders for disposable bedpans, hospital utensils, e.g. bowls, as well as similar?items.
However, all these items are primarily intended for human waste. For example,among the terms mentioned in Section 3.3 are excreta and body fluids, including?stools, urine, blood, pus, vomit and mucus.
Section 4.5 dealing with disinfection specifies a MINIMUM A0 VALUE: “Thermal?disinfection must be deemed complete when all surfaces to be disinfected have?been subjected to a process with an A0 value of at least 60.”