(b)(4).Asp investigation summary: the investigation included a review of the device batch record, supplier product evaluation, trending of the product malfunction code, and system risk analysis (sra).The batch record was not reviewed as the lot number of the cassette was not available.Supplier product evaluation was not performed as the cause of the reported issue is user error.The trend for the product malfunction code of skin reaction was assessed from march 2014 through february 2014.There was no significant trend.The sra indicates the risk associated with improper handling of a cassette is "low." the instructions for use (ifu) of the sterrad® 100nx cassette state: "caution: wear personal protective equipment if handling a used cassette, or any of the cassette case components that may have been subject to liquid leak.This includes a cassette that has been ejected (for any reason) after insertion." the issue has been attributed to user error as the healthcare worker (hcw) handled a used cassette without utilizing proper personal protective equipment (ppe).A customer letter was sent advising the customer to wear proper ppe to avoid this issue in the future.Review of tracking and trending data did not reveal a trend.As a result, root cause was not performed; therefore, no further investigation is necessary at this time.
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