(b)(4).The medical device expiration date is unknown as the lot number is unknown.(b)(6) device manufacture date is unknown as the lot number is unknown.Device evaluation: result - one used sample of a 50 ml ll syringe without the blister was received connected to a tube.On visual inspection of the sample, it can be observed that the thread of the tip is damaged and there is leakage between the tube way and the syringe thread connected.The syringe was decontaminated and observed at 10x.Damage from overscrewing can be confirmed.Tip verification was performed on the returned sample and found within specification.Thread verification was performed and found within specification.Thread of the tube way was verified with male gauge pass/no pass.The syringe was filled with water and connected to the tube way.Leakage was observed when discharged.Therefore, it was determined that damage to the thread caused the leakage.A review of the device history record cannot be completed as the lot number was not provided for this incident.During the manufacturing process, final products are sampled and subjected to visual inspections according to procedure.Conclusion - based off the returned sample, the damage to the thread can be contributed to overscrewing the device.See manufacturer narrative.
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