A customer reported a positive result with a cyclesure® 24 biological indicator (bi) after a completed sterrad® 100s cycle.The affected load was released and used on a patient prior to reprocessing.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 when the load has been released for use prior to reprocessing.
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Device evaluated by mfr: asp investigation summary: the investigation included a review of the device history record (dhr), trending of lot number, system risk analysis (sra), visual analysis, retains analysis, and unused returns testing.¿ trending analysis by lot number was reviewed from 4/09/2018 to 07/06/2018 and trending was not exceeded.¿ the sra indicates the risk associated with exposure to biohazardous, pathogenic or infectious material is "low." ¿ one (1) used suspected positive bi was received.The ci disc is gold, the cap is depressed, the vial is crushed, and there is no media but yellow stain was in the vial with which to confirm the suspected positive result.There are no punctures on the plastic vial or tyvek® liner that would be consistent with false positive from external contamination.Though the suspect positive bi is confirmed, it cannot be verified as there was missing label for lot information.No manufacturing related anomalies observed.¿ thirty-two unused returned bis were subject to functional evaluation.All thirty-two bis met specification.The assignable cause could not be verified.It is unlikely the suspected positive bi was caused by a manufacturing issue as the retains and unused return testing met functional specification, dhr review found no anomalies that would contribute to a positive bi result and lot history review found trending was not exceeded in this lot.The used product was returned without label, however, the complaint issue was confirmed with visible yellow stains in the returned bi.An issue with sterrad® performance is also unlikely since the system was restored, the unit was diagnosed and the issue was resolved without spare parts.The customer was advised to follow their facility procedures in processing loads and to follow ifu.The issue will continue to be tracked and trended.Asp complaint ref #: (b)(4).
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