Clinical Study of the BARD® COVERA™ Arteriovenous (AV) Stent Graft

Clinical Inclusion Criteria: * Subject must voluntarily sign and date the Informed Consent Form (ICF) prior to collection of study data or performance of study procedures. * Subject must be either a male or non-pregnant female ≥ 21 years of age with an expected lifespan sufficient to allow for completion of all study procedures. * Subject must be willing to comply with the protocol requirements, including the clinical and telephone follow-up. * Subject must have an upper extremity arteriovenous (AV) fistula that has undergone at least one successful dialysis session with two-needle cannulation, prior to the index procedure. Angiographic Inclusion Criteria: * Subject must have angiographic evidence of a stenosis ≥ 50% (by visual estimation) located in the venous outflow of the AV access circuit and present with clinical or hemodynamic evidence of AV fistula dysfunction. * The target lesion must be ≤ 9cm in length. Note: multiple stenoses may exist within the target lesion. * The reference vessel diameter of the adjacent non-stenotic vein must be between 5.0 and 9.0mm. Clinical Exclusion Criteria: * The subject is dialyzing with an AV graft. * The target lesion has had a corresponding thrombosis treated within 7 days prior to the index procedure. * The hemodialysis access is located in the lower extremity. * The subject has an infected AV fistula or uncontrolled systemic infection. * The subject has a known uncontrolled blood coagulation/bleeding disorder. * The subject ha…