Manufacturing review: the lot history record of this lot was reviewed with special attention to the manufacturing and inspection of this product.The product was found to have met the specification prior to shipment.Based on the information available it is not reasonably suggested that a manufacturing process may have caused or contributed to the reported issue.Investigation summary: the stent delivery system was returned for evaluation in used condition and the stent graft was found bloody, and partially deployed.The outer sheath was found elongated and fractured which indicated an active force was used.A provided photo showed the device being held by the operator with catheter elongation and fracture, inserted into the packaging dispenser.The investigation leads to confirmed result for partial deployment and sheath fracture although the condition does not match the provided information.The system was found bloody, partially deployed and fractured.The partially deployed system was inserted into the packaging dispenser.Based on the provided information and the evaluation of the returned sample, the investigation is closed with confirmed result for partial deployment.The sample condition does not match the event and although it is not exactly clear, what happened.A definite root cause for the reported event could not be determined.Labeling review: in reviewing the relevant labeling, it was found that the instructions for use sufficiently address the potential risks.The instructions for use state: '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.' regarding preparation of the device the instructions for use state that "prior to loading the vascular system over a guide wire, both ports must be flushed with sterile saline.Flushing these lumens will also facilitate stent graft deployment".Regarding the anatomy of the placement site the instructions for use states: "prior to stent graft deployment.Ensure that the proximal stent graft end is positioned in a straight section of the lumen to reduce the risk of increased deployment forces and possible failure to deploy".Regarding accessories the instructions for use states: "prepare a stiff 0.035" guidewire per its instructions for use and ,advance the guidewire under fluoroscopy to the target location.The use of an appropriately sized introducer sheath is recommended".The packaging pictograms indicate an introducer size of 10f and a 0.035" guidewire.The instructions for use further state: "carefully remove the endovascular system from its packaging and inspect packaging and system for any damage or defects.Do not use if the sterile barrier is compromised".(expiry date: 05/2025).
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