The device was not returned for analysis.The lot history record (lhr) for this product could not be reviewed because the product was not returned for evaluation and the lot number was not reported.The reported patient effect of thrombosis is listed in the xact instructions for use as a known potential patient effect potentially associated with carotid stents and embolic protection systems.Based on the case information, a conclusive cause for the reported patient effects, and the relationship to the product, if any, cannot be determined.There is no indication of a product quality issue with respect to manufacture, design or labeling.(b)(4).
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