Decontamination in primary care dental practices - Gov.uk

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Decontamination: Health Technical Memorandum 01-05 – Decontamination in primary care dental practicesVentilationinputVentilationextraction oroutputWash-handbasin(optional)CLEANZONEDIRTYZONEWash-handbasinOUT(optional,dependentupon spaceand layout)OUTINInspectionand storageInspectand,whereapplicable,packSterilizerDeliverKeySingle-endedwasherdisinfectorRinsingsinkUltrasoniccleaner(optional)WashingsinkInstrument flowAirflowNotes1. The use of an ultrasonic cleaner is optional. Where such a cleaner is not provided,handling difficulties will be reduced by siting the washing sink near to the rinsing sink orby combining both sinks through the installation of a double-bowl sink assembly.2. Practices may increase the number of washer-disinfectors and sterilizers if capacity andservice continuity dictates.Figure 2 Example layout for single decontamination room• the decontamination area should be wipeddown carefully after each decontamination cycleis completed;• for clinical areas, a similar wipe-clean is requiredafter each patient procedure and before the nextpatient is admitted. Procedures for the wipedownprocesses are described in Chapter 6.5.4 Where a dedicated decontamination area has beendeveloped, separated from the patient treatmentarea in another room or rooms, enhanced dirty–clean separation should be a priority in design andoperation.5.5 When setting up new premises or planningsignificant modification to existing premises, theseparation of the decontamination area from theclinical area is recommended. The provision of twoseparate rooms is the preferred option as it providesfor a higher degree of separation between dirtyinstruments awaiting decontamination andcleaned/sterilized instruments that are to be placedin trays, packs or containers for use:• one room for dirty activity (cleaning andpreliminary inspection of instruments); and• one room for clean activity (inspection,sterilization and wrapping instruments).The clear intention is to reduce the risk and extentof recontamination as well as providing for a veryclear operation distinction between clean and dirty.5.6 Irrespective of the specific layout, a tidy workingenvironment makes carrying out decontaminationeasier. Therefore, the working environment shouldbe decluttered. The decontamination processshould be carried out by ensuring that a dirtyto-cleanworkflow is maintained (as outlined inparagraph 5.7). This is a one-way process that canbe achieved by physical segregation or temporalseparation (see paragraph 5.2).Physical segregation5.7 Physical segregation within essential qualityrequirements means using different areas fordifferent activities. A decontamination area should30
5 Setting up a decontamination areaVentilationextraction oroutputDouble-endedwasher-disinfectorVentilationinputWash-handbasinWash-handbasinOUTCLEANInspectand,whereapplicable,packDIRTYINVentilationinputInspectionand storageDeliverVentilationextraction oroutputSterilizerRinsingsinkUltrasoniccleaner(optional)WashingsinkKeyInstrument flowAirflowNotes1. An alternative is to have a single-ended washer-disinfector in the dirty area. Theprovision of a transfer hatch between the two rooms would be beneficial in reducing therisks of manual handling.(While double-ended washer-disinfectors offer advantages in reducing the risks of manualhandling, the use of a single-ended washer-disinfector will fulfil the objectives of thisguidance provided it is validated.)2. The use of an ultrasonic cleaner is optional. Where such a cleaner is not provided,handling difficulties will be reduced by siting the washing sink near to the rinsing sink orby combining both sinks through the installation of a double-bowl sink assembly.3. Practices may increase the number of washer-disinfectors and sterilizers if capacity andservice continuity dictates.Figure 3 Example layout for two decontamination roomsbe set up which preferably comprises a single run ofsealed, easily cleaned worktops. The following keydesign points should be observed:• The dirty zone will be used to receivecontaminated instruments. An area of benchingshould be clearly designated for this purposeand used for no other activity.• The washer-disinfector (where available) and/orwashing and rinsing sinks or separate bowlswithin a single sink unit should be installedadjacent to the receiving area. Where necessary,usually owing to space constraints, it isacceptable to use a single sink unit(incorporating two bowls with common supplyand taps) for the functions described here.• The ultrasonic cleaner (where used) should beseparated from the receiving area and adjacentto the rinsing sink/bowl.• Where a washer-disinfector is used, this may belocated adjacent to an ultrasonic cleaner and/ora rinsing sink/bowl but well away from thereceiving area.• After washing and disinfection (whereapplicable), the instruments and devices require31
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Table A4 Autoclave history record s
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ReferencesReferencesIt should be no
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ReferencesChoice Framework for loca
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Decontamination in primary care dental practices - Gov.uk

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