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.During the evaluation of the returned delivery system, the distal tip was found to be invaginated; may be as a consequence of the reported difficulties in inserting the device into the patient's body.During the performed patency test, a device compatible 0.035" guide wire could be inserted into and advanced through the delivery system without issue.Potential contributing factors to the reported event have been considered.Previous investigations of similar complaints have been reviewed.This type of event may be associated with insufficient flushing of the device.Not using an introducer sheath may be another contributing factor to the reported insertion difficulties finally resulting in the deformation of the tip.In this case, no introducer sheath was used.Rough handling of the device during unpacking or preparation also may contribute to the reported event.On the basis of the information available and the evaluation of the sample, 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." also the ifu states: "prior to loading the endovascular system over a guide wire, both ports must be flushed with sterile saline." furthermore, the ifu indicates that an introducer sheath of appropriate inner diameter is required for the procedure.Updated 'eval code & desc - conclusion' due to completion of evaluation.
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