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e. Are instruments damaged? Any surface damage will leach free iron when the instrument is processed. f. Ensure only stainless steel of ISO 7154 is used for repaired parts and medical devices. g. Do not use non- medical device quality items in trays of instruments i.e. stationary shop bulldog clamps or spoons from restaurants. h. Check the passivation layer on new instruments by running them through a few wash and sterilisation cycles to observe any staining occurring.
The above introduction to instrument staining trouble shooting, has been reproduced with kind permission by Dan Coole, MD Surgical Holdings in May 2024. Additional information can be found in an excellent document called, ‘reprocessing of instruments to retain value’ ii also known as the “Red Book”.
ii For more excellent reading on surgical instruments and instrument reprocessing https://www.reda-instrumente.de/wp-content/uploads/Version-11-Englisch.pdf
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