(b)(4).Investigation summary: there are no samples, but two photographs were received from the customer along with the reported complaint of leakage.The investigating team used retention samples of material #300850 from lot #2201429 for investigating the reported defect.The investigation and simulation were carried out on the retention samples where the investigating team functionally tested the samples for leakage and no leakage was found.Based on the photographs, the defect was confirmed as visible blood was noted flowing backwards after the plunger.However, the root cause could not be determined as the probable root cause can only be determined after investigating the original sample.Complaints received for this device and reported condition will continue to be tracked and trended.If samples are received in the future the complaint will be reopened for further investigation.The dhr of material no.300850 with batch no.2201429 was checked and there was no quality notification found on this lot no.From its production date to its dispatch on date.H3 other text : see h10.
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