Cook Ireland received a product complaint from Japan on December 22nd, 2011. The complainant reported that a 5 French Zilver Vascular Stent (part number ZIV5-18-125-8-80 from Lot# CF694429) was inserted into a sheath over a wire guide where it became lodged in the sheath hub. After further examination, the user determined that the product was a 6 French Zilver Vascular Stent (part number ZIV6-35