Investigation summary: three samples were received for evaluation.All of them have the sealed packaging flow wrap, the plunger rod-rubber stopper, the tip cap and saline solution.The barrel labels confirm the lot# 7208540.All three have the barrel flange damaged therefore failure mode is verified.Possible root cause is that the plunger rod labeler equipment possibly experienced a variation however this could not be determined as there were no quality notification issued during the production of this batch listed in the complaint and all inspections were accepted during the production of this batch.A device history review indicated that there was no documentation of issues for the complaint of batch 7208540 during this production run.Investigation conclusion: root cause could not be determined.There were no qns issued during the production of this batch listed in the complaint.All inspections were accepted during the production of this batch.There was no issue documented about barrel/flange damaged.
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