The device was returned for analysis.The reported material deformation was confirmed.The reported difficulty to advance could not be confirmed due to the condition the device was returned for analysis.Additionally, the following was noted: the distal tip was torn.The proximal end of the stent implant was located distal to the distal end of the proximal balloon marker.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 crimp marks were visible on the proximal marker where the stent implant was initially crimped, suggesting the stent was originally positioned correctly and securely at the time of manufacture.The investigation determined the reported and noted difficulties appear to be related to circumstances of the procedure as it is likely the device interacted with the guide catheter during advancement causing the reported difficulty to advance, subsequent material deformation and noted tear in the distal tip.There is no indication of a product quality issue with respect to manufacture, design or labeling.
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