Based on the information available and the investigation performed, there is no indication that the product failed to meet its specification prior to shipment.The lot records have been 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.The review shows that no remarkable incidents occurred during the manufacturing process.No relevant manufacturing process changes were implemented, that could have led to the event reported.Based on the sample condition the reported failure could be confirmed.The stent graft was found completely loaded in system and could not be deployed during stent graft deployment test.Furthermore, the inner catheter was found to be detached; however, further information regarding the detachment was not provided.No indication was found for manufacturing related issue.Potential factors which may have contributed to the reported issue have been considered.Therefore previous investigations of similar complaints have been reviewed.It was reported that the stent graft failed to deploy and also the inner catheter was found to be detached upon sample evaluation.This type of event may be associated with a difficult patient anatomy, which led to increased friction during stent graft deployment and alleged removal difficulties.Insufficient flushing of the device could be another contributing factor.In this case no procedural information was provided.Based on the information available and the evaluation of the sample returned, a definite root cause for the reported failure could not be determined.In reviewing the labeling supplied with this product it was found that the instructions for use (ifu) sufficiently address the potential risks.Regarding preparation of the device the ifu states that "prior to loading the endovascular 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 ifu states: "the safety and effectiveness of the device when placed across a tight bend (.) has not been evaluated.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 "do not kink the delivery catheter or use excessive force during delivery to the target lesion." furthermore, the ifu states: "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 possible retraction difficulty the ifu states: "if resistance is encountered removing the delivery system, it is recommended to remove the delivery system, introducer and guidewire as a single unit.After removing the delivery system, visually confirm that the complete system has been removed.(.) (a) inner catheter with distal flared end (.)".In this case no procedural information was provided.The information provided by bard represents all of 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 bard.
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