It was reported that during a stent graft placement procedure in right arm fistula.The stent graft did not properly unsheathe from the catheter, and after the device was removed from the patient, the radiopaque markers were allegedly partially deployed.The procedure was completed using another device.The current status of the patient was unknown.
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H10: manufacturing review: a review of manufacturing records was not performed, as additional complaints have not been reported for this lot.Based on the information available it is not reasonably suggested that a manufacturing process may have caused or contributed to the reported issue.However, the lot history records of this lot were reviewed with special attention to the manufacturing and inspection of this product and the product was found to have met the specification prior to shipment.Investigation summary: the sample was returned to the manufacturer for evaluation.Based on the investigation performed in the laboratory, the stent was found partially deployed, and a stent strut was found perforating the outer sheath.The perforation of the sheath by one of the struts of the stent is assessed as being the main issue, which led to partial deployment and break of the marker band.In this case, the system was flushed, and appropriate guidewire was used.The procedure was performed bareback.Additionally, the stent graft was placed straight upon deployment.Therefore, the investigation is confirmed for 'material perforation' as the main issue and 'break', 'material invagination' and 'misfire' as the cascading events.A definitive root cause could not be determined based upon the available information.Labeling review: in reviewing the relevant labeling, it was found that the instructions for use sufficiently address the potential risks.Regarding the preparation of the device the instructions for use states 'flush the stent graft lumen with sterile saline by using a small volume syringe.A) attach the syringe to the luer port at the back of the endovascular system (.).B) attach the syringe to the luer port on the y-adapter, (.) close the stopcock when flushing is complete and remove the syringe from the luer port'.Regarding the precautions prior and during deployment the instructions for use states 'prior to stent graft deployment, ensure that the proximal (inflow) stent graft end is positioned in a straight section of the lumen to reduce the risk of higher deployment forces and possible endovascular system failure' and 'if unusual resistance or high deployment force is encountered during stent graft deployment, abort the procedure, remove the delivery system and use an alternative device.' the instructions for use states regarding the accessories 'the use of an appropriately sized introducer sheath is recommended; prepare a stiff 0.035" guidewire per its instructions for use and advance the guidewire under fluoroscopy to the target location' the packaging pictograms indicate an introducer size of 10f and a 0.035" guidewire.H10: d4 (expiry date: 05/2024), g3, h6 (device).H11: h6 (result, conclusion).H11: section a through f ¿ the information provide by bd represents all the known information at this time.Despite good faith efforts to obtain additional information, the complainant/reporter was unable or unwilling to provide any further patient, product, or procedural details to bd.H3 other text : see h10.
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It was reported that during a stent graft placement procedure in right arm fistula.The stent graft did not properly unsheathe from the catheter, and after the device was removed from the patient, the radiopaque markers were allegedly partially deployed.The procedure was completed using another device.The current status of the patient was unknown.
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