86 EN MEDUVENT Standard
WM 67851 01/2021
7 Hygienic reprocessing
7.7 Disinfecting the reusable measuring
circuit by immersion
The principle described applies to the following parts of the
reusable measuring circuit:
• Pressure measuring tube
• PEEP control tube
• Flexible oxygen tube
• Measuring circuit connector
Requirements • The reusable measuring circuit has been disconnected from the
reusable breathing circuit (see “7.3.1 Disassembling the
reusable breathing circuit”, page 74).
• The reusable measuring circuit has been cleaned manually.
1. For the disinfectants, dose and exposure time for the individual
parts, refer to the cleaning and disinfection plan (see
“7.11 Cleaning and disinfection plan”, page 92).
2. Prepare the solution for disinfection by immersion as specified
by the disinfectant manufacturer.
3. Connect a sterile disposable syringe (20 ml) to a free end of a
tube.
4. Draw the solution for disinfection by immersion through the
tube into the disposable syringe until both are completely full.
5. Disconnect the disposable syringe from the tube.
Risk of infection and contamination resulting from defective
hygienic reprocessing of the measuring circuit!
Flushing the measuring circuit in alternate directions does not
ensure absence of germs, and might injure the patient.
Flush measuring tubes only in one direction.
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