Date of event: unknown.The date received by manufacturer has been used for this field.Investigation summary: a device history record review was completed for provided material number 306546 and lot number 1306893.The review did not reveal any detected abnormalities during the production process that could have contributed to the reported defect and all quality tests were found to be within specification.To aid in the investigation of this issue, ten physical samples were returned for evaluation by our quality engineer team.All of the returned samples were within their original unopened flow wrap packaging.Two of the ten syringes confirmed the defect of plunger movement difficult.When attempting to expel the solution, the plungers became restricted with 4ml of solution left in the syringes.It has been determined that this incident most likely resulted from an issue with one of the silicone pumps in the fill room during manufacture.Capa (b)(4) has been raised in relation to the reduction of dry barrel defects on product on the sp1.
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