Investigation summary: customer returned one 1cc, 13mm, 29g bd safety-lok insulin syringe in an open blister pack from lot # 5077733.Customer states that when activating the safety mechanism of the syringe 1ml, it dismantled, the needle separated and fell off on the floor and the safety mechanism came off.The syringe was returned with the hub-needle/shield assembly separated from the barrel.No damage to the barrel was observed.Also, the safety mechanism separated from the barrel.Capa (b)(4) and sa bddc-16-861 were both completed for safety-lok hub separates and safety mechanism disassembly and their associated root causes.Batch# 5077733 was noted to be manufactured prior to implementation of any corrective/preventive actions associated with this capa.A review of the device history record was completed for batch #5077733.All inspections were performed per the applicable operations qc specifications.There were zero defects or notifications noted for related defects during the production of these batches.Based on the samples / photo(s) received the investigation concluded: confirmed: bd was able to duplicate or confirm the customer¿s indicated failure (hub and safety mechanism separated).Possible root causes: - increase jams from the worn or incorrect swing fingers causing double load on the hub loader putting extra stress on the hubs causing cracking.- raised hub detection is only challenged once a week which limits the ability to detect this defect in a timely manner.
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