The detachment of the covering has been confirmed.The covering is not damaged and four glue spots are visible on the covering where they were attached.The stent has been slightly flattened and is bent at the second row of welds.The zigs are overlapped, which is a sign of over crimping.It is possible that the hemostasis valve tool did not fully defeat the valve, causing the covering to detach.The mounting procedure included with the instructions for use states: "insert the leading edge of the tool into the hemostasis valve of the sheath.The tool must collapse the entire hemostasis valve to the sides of the introducer to allow the covered stent to pass." the stent was being used off-label.It is only approved for coarctation of the aorta.
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