(b)(4).Igtcfs-65-1-uni-celect-pt.(b)(4).Summary of investigational findings: the investigation is based on event description and the returned product.Introducer and blue sheath returned, but the introducer could not be advanced through the sheath tip.Consequently, the interface between the sheath and the cup caused the difficulties encountered when attempting to pull the sheath past the tactile bump.Internal action is taken.There is found no evidence to suggest that the device was not manufactured according to specifications.Cook medical will continue to monitor for similar events.
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