It was reported that on (b)(6) 2017 a supera stent was deployed a lower extremity vessel.Post dilatation was performed.Following, the stent pulled back into an unintended area within the vessel.Per physician, this was possibly due to the post dilatation balloon and there was no device malfunction.The stent was re-advanced back into proper position.Less than a week later, the stent had thrombosed and was removed via a percutaneous intervention on (b)(6) 2017.Visual inspection did not reveal any deformities of the stent.There was no additional information provided regarding this issue.
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(b)(4).The udi# is unknown because the part number and lot number was not provided.The device was not returned for analysis.However, it is likely that the difficulties and subsequent patient effects are the results of interaction with the balloon catheter during post-dilatation.The lot history record for this product could not be reviewed and a similar incident query could not be performed because the product was not returned for evaluation and the part and lot numbers were not reported.It should be noted that the reported patient effect, thrombosis, is listed in the supera instructions for use (ifu) as known potential adverse patient effect.The investigation determined the reported difficulties were due to operational context.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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