Summary of investigation: there are no previous complaints of this code-batch of which we manufactured and distributed in the market (b)(4) units.There are no units in our stock.We have received 1 closed sample and 2 open samples, with the threads still wound on the packs and 1 with the needle detached and the other without needle.Tightness test to the closed sample received has been performed and the unit is tight.Needle attachment results conducted on the closed sample received is 4.20 kgf in average and in minimum and fulfil ep requirements: 1.53 kgf in average and 0.46 kgf in minimum.However, taking into account that the 2 open samples received had the thread still wound on the pack and the needles detached, we will consider this complaint as confirmed.Batch manufacturing record: reviewed the batch manufacturing record, this product had a normal process and the results during the process fulfil usp/ep and b.Braun surgical requirements.Conclusion root cause analysis: the most probable root cause is that the attachment of the needle was not correctly done as the open samples received show that the needle escaped from the thread.Final conclusion: taking into account the open samples received do not fulfil european pharmacopoeia/ b.Braun surgical specifications we conclude that the complaint is confirmed by evidence of the failure in the open samples received.Corrective measures: actions on product distributed of this reference/batch: based on the conclusion derived from investigation, it is not required to make actions in distributed product.Corrective/preventive actions: according to our internal procedures, there is no need to establish corrective or preventive actions.Nevertheless, this complaint is recorded for trending analysis to assess if actions are needed in the future.
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