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.1 Important instructions for the maintenance of the
hygiene status of warm water irrigation units
For loosening cerumen in the auditory meatus and for the stimulation of the labyrinthine system, GN Otometrics offers
the warm water units Hygrotherm plus (37°C) and Aquamatic
These units heat the drinking water which comes from the household connection to the preselected temperature.
The operating instructions must be followed, or the increased number of pathogens in the rinse water can affect the
health of sensitive patients.
Requirement for taking into use
The water which is provided by the household connection must at least meet the WHO guidelines or the
country-specific guiedelines for drinking water.
Connection
Fresh water must flow through the wall connection for a period of approx. 1 minute prior to the unit
being connected.*
Ensure that the installation is hygienically carried out! Disinfect the threaded connections with 70 % alcohol*
before screwing them into place.
Wear disposable gloves* when carrying out maintenance work on parts which come into contact with the
water.
Carry out thermal cleaning at least 3 times before patient use.*
* This work is carried out by the GN Otometrics service technician.
Running operation
Before beginning the surgical operation, switch on the unit and await the thermal cleaning process.
After the device had been idle for a long period of time, (weekend, during holidays, etc.) the thermal cleaning
process must be initiated and repeated.
We recommend that the device be switched off and on every 2 hours and not longer than 4 hours to start the
thermal cleaning mode.
Immediately replace and autoclave contact parts such as the jet connection each time it is used for a
different patient (for prevention of retrograde germification).
Before every use, spray water and check the temperature.
Service
Ensure that the suspended particle filter is hygienically changed (see commissioning) (dipose of filter and
carefully clean the filter glass). Ensure that no contact is made with the contaminated parts.
Carry out thermal cleaning after each service.
We recommend that the number of germs in the water be regularly determined at the input and output of the unit.
II (20° - 47°C).
TM
UK
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