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 similar incidents and/or complaints from this lot.Based on the information provided, a definitive cause for the difficulties could not be determined.It may be possible that the vessel diameter was narrowed in some locations causing the stent to elongate during deployment; however, this could not be confirmed.The surgical procedure to remove the stent was related to circumstances of the procedure.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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