Investigation ¿ evaluation: the bander ureteral diversion stent set was not returned for an evaluation; therefore, a physical investigation could not be performed.The complaint report that the stent clogged immediately was unable to be confirmed.Based on the information provided, a definitive root cause cannot be determined or established at this time.Current controls for manufacturing are in place to assure functionality and device integrity prior to shipping.A review of the device history record indicated that there were no non-conformances for this lot number.Additionally, a review of complaint history revealed this complaint to be one of two complaints with this lot number 7021020.The other complaint was reported by the same customer referencing the same device with a defect of ¿too soft, slips off too easily.¿ based on the quality engineering risk assessment; no further action is required.Cook medical has notified the appropriate personnel and the will continue to monitor the complaints database for similar complaints.
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