A customer reported a positive result with a cyclesure 24 biological indicator (bi) after a completed sterrad 100s cycle.The bi was incubated for 24 hours.The chemical indicator (ci) changed color correctly.The subsequent bi result was negative.The affected load was recalled.There was no report of infection, injury or harm to patient(s) associated with this issue.Although there is no report of patient injury or harm and no prior incidents have resulted in serious injury, advanced sterilization products (asp) has determined in this situation sterility cannot be assured.Therefore, as a matter of policy asp had decided to report all incidents of positive cyclesure 24 biological indicators.
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Asp investigation summary: the investigation included a review of the device history record (dhr), trending of lot number, system risk analysis (sra), visual analysis and retains analysis.Trending analysis by lot number was reviewed from 06/30/2016 to 12/06/2016 and trending was not exceeded.The sra indicates the risk associated with a quality problem with no impact on safety is "low." two vials received, one has a golden ci cap and the ci disc is golden in color, indicative of peroxide exposure.The cap is depressed with signs of strikes on the vial.The ampule inside is crushed into pieces and the vial is completely dry.The second vial ci disc is purple, no media, ampules has signs of strikes, and the ampule inside is intact.There is a single tyvek® liner and single spore disc present.There are no punctures on the outer vial or tyvek® liner that would be consistent with false positive from external contamination.Thirty-two retains bis were subject to functional evaluation.All thirty-two bis met specification.The likely assignable cause was due to user error.The customer stated there was reduced media observed in the vial after processing.Per the instructions for use (ifu), it is recommended to reprocess the load again with another bi.A customer letter will be sent regarding the proper use of the bi.The issue will continue to be tracked and trended.
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