The device was not returned for evaluation.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.Additionally, a review of the complaint history identified no other complaints reported from this lot.Based on the information provided, the reported difficulties appear to be due to circumstances of the procedure.The resistance encountered during advancement was due to interaction with the anatomy.Additionally, it is likely that during the attempt to advance against resistance, the stent became compromised on the balloon resulting in dislodgement.The additional treatment to snare the dislodged stent was due to case circumstances.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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