The device was not returned for analysis.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 similar incidents from this lot.The investigation was unable to determine a conclusive cause for the reported difficulties.Factors that may contribute to a material deformation (flared struts) and a stretched stent prior to use include, but are not limited to, inadvertent mishandling during sheath/ stylet removal or preparation, manufacturing damage, improper storage, and/or damage during shipping.Based on the information provided and because the device was not returned for analysis, it is unknown what may have caused the reported stretched stent and material deformation (flared struts).There is no indication of a product quality issue with respect to manufacture, design, or labeling.
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