It was reported that the procedure was to treat an unspecified artery.The 2.5x48mm xience xpedition stent delivery system (sds) had resistance possibly due to the patient's anatomy when attempted to be used and the stent was noted to have flared struts.Another stent was used to complete the procedure.There was no reported adverse patient effect and there was no reported clinically significant delay in the procedure.Returned device analysis identified the stent implant was returned dislodged from the balloon and the outer member and inner member proximal to the proximal seal were stretched.The account confirmed there was no stent dislodgement noted, no stretching of the outer/inner member proximal to the proximal seal, and the correct device was returned.The dislodgement possibly occurred during transport and/or packaging.No additional information was provided.
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A visual inspection was performed on the returned device which identified the stent implant was returned dislodged from the balloon and the outer member and inner member proximal to the proximal seal were stretched.The reported material deformation was confirmed.The reported failure to advance could not be evaluated as the exact anatomical conditions encountered by the device during the procedure could not be replicated in the test laboratory.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.Additionally, a review of the complaint history did not indicate a lot specific quality issue.The investigation determined the reported difficulties appear to be related to the operational context of the procedure.There is no indication of a product quality issue with respect to manufacture, design, or labeling.
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