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1. Vacuum assisted steam sterilization
A non-vacuum autoclave, often referred to as ‘Type N’, is only suitable for processing solid unwrapped instruments. They are not suitable for sterilizing instruments that have lumens (hollow cavities), items wrapped or enclosed in pouches, and porous (absorbent or linen)loads. |
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2. Choosing the correct autoclave
The autoclave must be fit for purpose. Choose one that is suitable for the loads you plan to process. ‘Type N’ is only suitable for unwrapped solid instruments, ‘type B’ is suitable for all load types. For more information see Fact Sheet One |
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3. Cleaning of instruments
Prior to sterilizing instruments in an autoclave it is important to clean them thoroughly to remove all blood, mucous and tissue deposits from the equipment. Failure to do this can mean that the steam is unable to penetrate to all surfaces of the instruments and therefore make effective sterilization impossible. |
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4. Preparing instruments for sterilization
The type of load that is to be sterilized depends largely on the type of autoclave being employed (see Fact Sheet No.1). Once it has been determined that the type of load is suitable for the autoclave being used, it is necessary to determine the most appropriate form of packaging. |
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5. Routine maintenance and testing procedures
In order to ensure a high standard of performance is continued throughout an autoclaves life it is important that the unit is maintained and tested regularly. The maintenance program should be tailored to ensure that all vulnerable parts are inspected or replaced before they deteriorate to a point where the performance or safety of the autoclave can be compromised. |
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6. Basic training requirements
According to UK law (Pressure Systems Regulations 2000), all autoclave users must be trained. Ideally the manufacturer or his authorised agent should do this, and provide a certificate for each individual. Keeping a log detailing all training sessions undertaken by individual users will help ensure training is up to date. |
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7. Single use water systems the advantages
Research undertaken has shown that Endotoxins found in the reservoirs of benchtop autoclaves as a result of recycling used water, are known to complicate the healing process in oral procedures and have been traced in periodontal disease. |
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8. CSSD or localised benchtop sterilization
Many doctors’ surgeries and departments within hospitals depend heavily on Central Sterilization Service Departments (CSSD) to sterilize their surgical instruments. |
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9. Auditing your instrument sterilization procedures
Many National authorities publish guidelines on the correct procedures for sterilizing medical instruments. In the UK these include; The British Dental Association, Medical Devices Agency and of course, the Governments Health and Safety Executive - Local Authorities Enforcement Liaison Committee (HELA). |
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10. Pressure systems safety regulations 2000/128
The Pressure Systems Safety Regulations 2000/128 came into effect in February 2000 and this placed the safety of pressure systems as clearly the responsibility of the owner or user. |
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11. Storage and use of processed instruments
Following the decontamination of surgical instruments and other medical devices and accessories, it is important to ensure that the storage conditions maintain the packs in the condition in which they are required for use. |
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12. Routine testing of benchtop autoclaves
When purchasing an autoclave whether vacuum or non-vacuum, it is important to ensure that your autoclave is commissioned in accordance with HTM2010, EN554 or DB9804. Ask your supplier for details. |
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13. Instrument washers the facts
To ensure an efficient sterilization process it is crucial that instruments are cleaned thoroughly, particularly instruments with hollows or lumens, as debris collected here will seriously impair the sterilization process. |
