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Concomitant medical products: essk-3, zsle-16-74-zt, zsle-16-56-zt, zsle-13-56-zt.(b)(4).This report includes information known at this time.A follow-up report will be submitted should additional relevant information become available.
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It was reported that during an endovascular abdominal aortic aneurysm repair (evar) on a male patient, there was difficulty checking the exact position of the zenith flex aaa endovascular graft bifurcated main body in the delivery system.They were unable to use the gold marker on the contralateral limb to determine the exact position of the graft in the delivery system prior to unsheathing as the mark was "u-shaped" instead of a check-mark.They used to alignment of the trigger wire knobs and the captor valve as an approximate way of confirming the position of the graft inside the delivery system.The procedure went without an issue and the use of the other parts of the delivery system was successful.According to the initial reporter, the patient did not experience any adverse effects due to this occurrence.
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Investigation/evaluation: the actual complaint device was not returned.Without the complaint device, a physical investigation was not able to be completed.An image was provided for review.A documentation investigation was performed.A review of the provided image, the device history record, instructions for use, manufacturing instructions, and quality control data was conducted.The device history record was reviewed and no non-conformances were noted.Each device is shipped with an instructions for use (ifu) that lists the anatomical requirements, warning & precautions, and the correct deployment procedure.An image was supplied with the complaint for review.The overall marker length appears normal but slid down on the wire apex such that equal length was present on each side of the wire apex.A possibility is related to the position of the gate.The gate could be positioned 45 degrees from the left anterior or left posterior lateral position, but not backwards.However, the anterior or posterior position of the marker can be observable with catheter manipulation, if the marker turns with the rotation it is anterior, if it turns opposite is posterior.The ifu advises to verify the position of wire guide in the thoracic aorta.Ensure the graft system is oriented such that the contralateral limb is positioned above and anterior to the origin of the contralateral iliac.If the contralateral limb radiopaque marker is not properly aligned, rotate the entire system until it is correctly positioned halfway between a lateral and an anterior position on the contralateral side.The ifu also advises to verify the position of wire guide in the thoracic aorta.Ensure the graft system is oriented such that the contralateral limb is positioned above and anterior to the origin of the contralateral iliac.If the contralateral limb radiopaque marker is not properly aligned, rotate the entire system until it is correctly positioned halfway between a lateral and an anterior position on the contralateral side.The check could appear ¿u¿ shaped due to manufacturing error resulting in missing or improperly sewn marker bands or due to a suture breaking allowing for conversion of the check shape.The qc specification, manufacturing instructions and design history files were reviewed and no evidence was found that the device is manufactured out of specification and no non-conformances were noted in the device history record.No conclusion was made about the conditions that caused the reported failure mode.Per the quality engineering risk assessment, no further action is required.Monitoring will continue to be performed for similar complaints.The appropriate cook personnel have been notified of this event.
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