Thursday, January 13, 2011

OPERATION AND CLEANING OF MOIST HEAT STERILIZER


1.0       OBJECTIVE
To lay down a procedure for operation and cleaning of autoclave
2.0       RESPONSIBILTY
            Microbiologist./ Q.C Executive
3.0       ACCOUNTABILITY
            Head - Quality Control 
4.0              PROCEDURE
4.1        :    PRE-START UP
4.1.1    :   Ensure the cleanliness of the room and machine.
4.1.2    :    Ensure that all utilities such as pure steam, water, power  etc are available.
4.1.3    :    Check that material are ready for auto clave and Load the autoclave as per load pattern                   
                given in Annexure-1 along with the necessary temperature indicators. 
4.1.4    :     Ensure AHU of area is working.
4.1.5    :    Inside door of the autoclave is closed properly.
 4.2       :    START UP
4.2.1    :   Open pure steam valve from service floor.
4.2.2    :   Open main valve of steam line .
4.2.3    :   Open steam by-pass valve for condense out let.
4.2.4    :   Close steam by pass valve after completely out let of condensate
4.2.5    :   Open main valve on steam line connecting to chamber.
4.2.6    :   Open the valve before trap on steam line.
4.2.7    :   Close the door of the autoclave tightly.
4.2.8    :   ON machine by pressing green color OFF/ON switch on loading side panel to start the           
                sterilization cycle.
4.2.9        :    Press the F1 button of the PLC of autoclave after getting auto mode indicated by a red
                 indicator.
4.2.10  :    Press F3 for cycle selection , select the cycle and press enter. selection of auto mode.
4.2.11  :    Then press start button
4.2.12  :    Close the outlet of jacket and chamber steam.
4.2.13  :     When  the PLC of autoclave shows sterilization  cycle complete switch off the autoclave                  
                  and open the outlet of chamber and steam.
4.2.14 :     After each day of working clean ( by moping) the autoclave with disinfectant solution.
4.3       :           SHUT DOWN.
4.3.1       :        At the end of cycle, Unload the sterilized material from sterile side
4.3.2      :         Check the change in  steam clox  indicator. It should change as per Manufacturer instructions.
4.3.3      :         Attach steam-clox in media preparation record and note down operation.
5.0        :          Cleaning :
5.1        :          Pre checks.
 5.1.1     :         Ensure that loading door is open and door to sterile side is closed.
5.1.2     :          Ensure that autoclave panel electrical supply cut off.
5.1.3     :          Ensure that no material is present inside the autoclave.
5.1.4     :          Ensure that outer surface of autoclave is cool and is at room temperature.
5.1.5     :          Ensure that all utility supply links  to the autoclave are closed.
5.2         :          Daily cleaning :  At the end of shift.
5.2.1       :        Clean the utility inlet holes with a nylon brush and them mop with lint free cloth.
5.2.2       :        Mope the chamber, probes, loading trolley & outer surface of autoclave with lint free
                       cloth dipped in purified water.
5.2.3       :        Mope the autoclave chamber and loading trolley with water for injection.
5.2.4       :        Wipe the chamber, probes, utility pendants and  outer surface of the autoclave with lint
                        free cloth.
6.0           :       Precaution :
6.1           :       Jacket pressure should not be less than 1.2 kg per cm square.
7.0         :         Abbreviations:  
                        AHU =   Air Handling Unit      
            Programmable Logic Control  (PLC)
 8.0        :      Annexure  :   Annexure – 1 attached
 9.0        :       Reference : Instrument Manual

ANNEXURE I

Details of the abbreviations used in Schematic represented.
A - Media-Probe ,B.I and C.I. inside the media
B,C,Q,R,S-Media ,
D-Dress -Probe ,B.I and C.I. inside the Dress ,
E-Pippet Carrier ,
F- Pippet –Probe,B.I and C.I. inside the Carrier  ,
G-Petri-Plate Carrier ,
H-Petri-Plate -Probe ,B.I and C.I. inside the Carrier ,
I-Petri-Plate Carrier ,
J-Petri-Plate -Probe ,B.I and C.I. inside the Carrier,
K-Petri-Plate Carrier ,
L-Manifold -Probe ,B.I and C.I. inside Filter Holder ,
M-Manifold Filter Holder ,
N-Liquid Media -Probe ,B.I and C.I. inside media
O-S-S Perforated Box With Filter Assembly
P-S-S Box With -Probe ,B.I and C.I. inside the Assembly , Filter Assembly

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