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(b)(4) follow up for device evaluation.It was reported that the needles may not be properly seated and that they are breaking off during use when drawing up injections.To support the investigation, the quality team received eight samples in unopened blister packaging and one photograph for evaluation.A visual inspection of the returned samples identified no defects or irregularities.The epoxy at the needle hub to needle junction was also found to be acceptable on all inspected units.The photograph provided depicts a needle hub with the safety mechanism assembled to a syringe; the needle is not present on the assembly and appears to be inserted into a vial.A device history record review was completed for material number 305901, lot 5351062.The review confirmed that all required visual inspections were performed and that no quality notifications were documented related to the reported condition.The lot was inspected and accepted in accordance with the inspection control plan and was approved for shipment.In addition, device history records for the needle lots used in the manufacture of the finished lot were reviewed.No documentation of this defect was identified throughout the production run of the reviewed lots.To date, no other similar events have been reported for this lot.Based on the investigation, including review of the photographic evidence, the customer reported symptom is confirmed.However, without the failed physical sample available for analysis, a probable root cause could not be determined.
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