A visual inspection was performed on the returned device.The reported difficult to advance and the reported premature activation were unable to be replicated in a testing environment due to the condition of the returned device.A review of the lot history record and similar incident review of the reported lot could not be conducted because the lot number was not provided.As there was no damage noted to the device during the inspection prior to use, the investigation determined the reported/noted difficulties appear to be related to circumstances of the procedure as it is likely that resistance was met with the unspecified sheath during advancement resulting in the reported difficult to advance.Interaction /manipulation of the device resulted in the noted device damages (inner member/tip jacket separations, bunched intermember, kinked sheath) and ultimately resulted in the reported premature activation.The treatment appears to be related to the operational context of the procedure as an unspecified snare was used to successfully retrieve the stent.There is no indication of a product quality issue with respect to design, manufacture or labeling.
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