It was reported the procedure was performed to treat a lesion in the right carotid vessel with no calcification and moderate tortuosity.The 7.0x10mm acculink self expanding stent system (ses) was advanced to the target lesion and upon deployment, the slider became stuck and stent was not deployed.During withdrawal of the ses, the slider released and the stent deployed proximal to the target lesion in healthy tissue.The procedure was aborted at this time.There was no clinically significant delay in the procedure and no adverse patient sequela.No additional information was provided.
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The device was returned for analysis.The reported physical resistance/sticking and the reported difficult or delayed activation were unable to be replicated in a testing environment due to the condition of the returned device.Electronic lot history record (elhr) and corrective and preventive actions (capa) reviews were performed and revealed no indication of a product quality issue.Additionally, a review of the complaint handling database identified no other incidents from this lot.As there was no damage noted to the device during the inspection prior to use, the investigation determined the reported difficulties appear to be related to circumstances of the procedure as it is likely that the distal shaft was bent in the moderately tortuous anatomy resulting in preventing the shaft lumens from moving freely; thus during deployment resulted in the reported physical resistance/sticking and the reported difficult or delayed activation.Manipulation of the device resulted in the noted wrinkled sheath likely contributing to the reported physical resistance/sticking.As reported, during withdrawal of the ses, the slider released and the stent deployed proximal to the target lesion in healthy tissue.Based on the reported information and results of the complaint investigation there is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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