Sterilized packing; choice and expertise - Capita selecta
Sterilized packing; choice and expertise
For instruments that must be packaged sterilized, use can be made of containers, sealed sterilization bags or bags with an adhesive strip.
The use of containers is less reliable than bags because the container is not opened until it is ready for treatment. If at that moment it appears that moisture has remained in the container, the entire container must be removed for a new sterilization round. A new sterilized container must then immediately be available.
A Container for implantology. B Incorrectly sterilized: moist content
Remaining moisture can be caused by, among other things, inadequate hygiene of the filters that allow the steam to flow in and out of the container.
A Filter contaminated, prevents sufficient drying. B Clean filter for adequate steam inlet and outlet
With sealed sterilization bags, it is important to measure the correct size (content). Up to three-quarters of the content may be filled. In addition, the seal must be completely leak-proof to prevent entry of air after sterilization.
A Too small seal bag for this implantology cassette. B Too full sterilization bag
When prefabricated adhesive bags are used, attention must be focused on precise sealing according to the manufacturer's instructions. If the adhesive strip is incorrectly folded over, there is a high risk of air leakage and sterility is not guaranteed.
A Instruction manufacturer. B Properly folded
A Wrongly folded. B, C Not airtight
It is important to check the materials used for soundness. For example, sterilization bags are commercially available, the adhesive of which is too weak and the perforations in the wrapping edge are too large. This combination of factors also leads to unsealed pouches after the sterilization process.
A (Too) large perforations. B Weak glue. C 'Outdoor' bags after sterilization: contents not sterile
To test whether the usual method with sterilization bags ensures sufficient sterility, it is possible to carry out a so-called seal test:
A test strip can be taken through the sealing machine to check whether the seal is regular and solid.
Test stuff sealtest
In addition, the degree of sealing can be checked with the aid of a blue ink-like liquid. If there is a leak, the protocol concerning the use of the sterilization materials will have to be adapted with the necessary measures to be taken.
A Test equipment leak test. B Leak test insufficient. C Leak test passed
Results of the seal tests can be recorded in a logbook.