Results: a sample was not returned for evaluation.Since the lot number affected in this incident is unknown (b)(4) units of the lots sold to this customer in the last 2 years are evaluated: 1410307, 1412260, 1412247, 1412258, 1501287, 1502247, 1503292, 1503297, 1505272, 1506238, 1507299, 1508225, 1510218, 1511243p, 1512227p, 1512232p, 1602225p, 1603227, 1604232p, 1604250p, 1605256p, 1606221p, 1607253p, 1607259p, 1609236p, 1610234p, 1610252p, 1612236p, 1611244p, 1702235p, 1703212p, 1703247p, 1703290p.No damage or molding defect can be observed in any of the device history records.Break out and sustaining force test were performed with 5 retained samples of the 33 lots.All the results are acceptable.Pump test is performed with 5 retained samples of the 33 lots.All the results are acceptable.Conclusion: without a sample, an absolute root cause for this incident cannot be determined as bd was not able to duplicate or confirm the customer¿s indicated failure mode.According to these results of the dhr review and retention sample investigation, no manufacturing defect has been found in these lots that could be related to this defect.
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