(b)(4).Evaluation summary: the device was returned for analysis with multiple areas with shredding strands present on the distal shaft of the sds between the proximal seal and the mid-lap seal.However, the failure to advance could not be replicated in a testing environment as it was based on operational circumstances.Based on the visual and dimensional analysis of the returned stent implant, there is no indication of a product quality issue with respect to manufacture, design or labeling.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 of the reported lot did not indicate a lot specific quality issue.Based on the information reviewed, there is no indication of a product quality issue with respect to manufacture, design or labeling.(b)(4).
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