Other, other text: additional information provided in h6 and h10.Device evaluation: the returned samples were received inside of plastic bag which is not its original packaging.The (b)(4) returned units were visually inspected at a distance of 12 to 16 inches under normal conditions of illumination.Sample no.1 and 2 were set for priming testing and after that was set for run.No discrepancies were detected, samples were fully priming and connected without difficulty, the pump was set running, liquid flowed through the whole device without interruptions, alarms were activated.On sample no.3, liquid was observed inside that could be the medication; for this reason, the sample was not tested, however an occlusion was identified between tube assembly to filter outlet bonding; thus, failure mode was confirmed.Based on the tests results, it is concluded that the failure could be reproduced in two ways: 1.When the excess of solvent is not cleaned before to assembly the tube with the component and 2.When the tube is introduced two times in the solvent dispenser (procedure was not followed).Action taken to mitigate this event: an awareness notification was issued by quality engineer to notify production personnel about the failure mode reported by the customer.The device history record (dhr) was reviewed and showed that this device met all manufacturing specifications for the product released for distribution; no issues were identified that would have impacted this event.
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