User Manual for the Vacuklav
®
23-B
13
4
For each sterilization cycle
4.1 Water
and
power
_______________________________________________________
4.1.1 Demineralized
/ distilled water__________________________________________________________
This autoclave automatically checks to make sure that there is enough demineralized / distilled water, and it checks
that the quality of the demineralized / distilled water is sufficient for starting a program. In order to start a program
without delay, to avoid error messages, and to prevent a program from stopping before it is finished (see Sections
7.3 and 7.4), please make sure to carry out the following:
1. Before starting the first sterilization cycle of a day, check to make sure that there is enough water in the right
side of the dual-chamber water supply tank (this applies if you are using the system’s own internal supply: i.e., if
you are not using a connected water-treatment system). If there is not enough water in the tank, fill with water of
sufficient quality (see Section 8.3.2 of this manual).
2. If you use a direct water supply from the MELAdem
®
47 water-treatment system, make sure that the water feed
to the autoclave is open in time. If the pressure tank is empty, this feed must be opened at least one hour before
starting a program. This step is not necessary if the water supply remains open continuously .
4.1.2 Power
supply________________________________________________________________________
Switch on the power switch at the bottom right of the front of the autoclave. The message “Please wait – Door
unlocking” will appear in the display. After approx. 15 s, the device will then be in its initial state.
4.2
Preparation of instruments
________________________________________________
MELAG — use of non-rusting materials for parts which come into contact with steam
All parts of the Vacuklav
®
23-B which come into contact with steam are made of non-rusting materials. The
sterilization chamber and the chamber door are of stainless steel, steam lines are Teflon
®
, and threaded
connections and solenoid valves are brass.
Drag-in rust
The non-rusting parts used in the Vacuklav
®
23-B ensure that the autoclave itself cannot cause rust to form. In any
cases in which rust has developed on the autoclave or on the sterilized items inside, investigations have
consistently shown that this rust has been dragged into the autoclave from the outside by rusty instruments.
We
must point out that rust can form on stainless-steel instruments made by even the best manufacturers.
One main cause of instrument rusting is improper treatment with chemical cleaning and disinfecting agents during
preparation for sterilization.
Preparation of instruments for sterilization
The problem of drag-in rust shows how important it is to properly prepare items for sterilization.
It is urgently
necessary to observe the following procedures:
1. Clean and prepare (for example, by oiling) handpieces and contra angles as described in the instructions
provided by the manufacturers of these items.
2. Immediately after their medical use, all other instruments must be placed in a disinfection and/or cleaning
solution in accordance with UVV/VBG 103 and properly cleaned and disinfected there.
3. Always be sure to use the correct dosage of disinfection and/or cleaning agents in these solutions.
4.
Important:
Be sure to carefully follow the instructions for the length of time that the instruments must soak in
the solutions.
5. We also recommend the use of ultrasonic equipment, recommended cleaning and care equipment for
handpieces and contra angles, as well as thermal disinfecting techniques.
6. The proper cleaning of instruments is also essentially important in preventing particles of soiled matter from
separating from the instruments during sterilization and from clogging the filters, nozzles, and valves of the
autoclave. It is extremely important to use a brush to very carefully clean the locks, joints, and hinges of the
instruments before sterilization.
7.
Important:
Use a brush under running water to completely rinse all cleaning and disinfecting agents from
instruments before placing them in the autoclave.
Residue of chemical cleaning and disinfecting agents
must by no means be allowed to enter the autoclave, since they will cause corrosion there.
8. As a final step before placing the instruments into the autoclave, rinse them with demineralized water, and dry
them well.
9. Be sure to use oil (as indicated in the manufacturers’ instructions) to prepare turbines and handpieces for
sterilization, in order to ensure their long service life.
Time of day (h:min:s)
Chamber pressure (bar)
Temperature (steam) (°C)
Program Start-Stop
1 4 : 2 7 : 1 2
0 . 0 2 b a r 2 5 ° C