The lot history records have been reviewed with special attention to the manufacturing and inspection of this product and the product was found to have met all specifications prior to shipment.There is no indication for a manufacturing-related failure.The evaluation of the returned sample confirmed that the deployment mechanism had not been used and that the tip was invaginated.Potential factors which may have led or contributed to the tip deformation have been considered.Previous investigations of similar complaints have been reviewed.The deformation was identified during the attempt of introducer entry.Therefore, the event may be related to unpacking, preparation or rough handling of the device during the attempt of insertion.This kind of damage also may be related to shipping or storage of the product.On the basis of the information available, a definite root cause for the reported event could not be determined.The ifu states: "examine the packaging and endovascular system to determine if there is any damage, defects or if the sterile barrier is compromised.Do not use the device if any of these conditions are observed.".
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