The Pivotal Study of the Aptus Endovascular AAA Repair System

Inclusion Criteria: * Infrarenal AAA with a maximum diameter ≥ 4.5 cm. * Infrarenal AAA with at least 12 mm length of non-aneurysmal proximal neck. * Infrarenal AAA with a proximal neck internal diameter between 19-29 mm. * Infrarenal AAA with an internal diameter at the aortic bifurcation ≥ 18 mm. * Infrarenal AAA with an angle of ≤ 60° relative to the long axis of the aneurysm. * Bilateral iliac artery distal fixation sites ≥ 10 mm in length. * Bilateral iliac arteries with an internal diameter between 9 and 20 mm. * Bilateral femoral/iliac arteries with morphology compatible with standard vascular access techniques and vessel size must accommodate a 16F (5.3 mm) or 18F (6.0 mm) delivery system. Exclusion Criteria: * Myocardial infarction within past 10 weeks. * Active systemic infection. * Ruptured or leaking AAA. * Mycotic or inflammatory AAA. * Genetic connective tissue disorders (e.g., Marfans or Ehlers-Danlos Syndromes). * Concomitant TAA or thoracoabdominal aortic aneurysms. * Requires emergent AAA surgery. * Previous AAA repair. * Patients with a body habitus that would prevent imaging required by the study. * Patient has significant comorbid conditions that pose undue risk of general anesthesia or endovascular surgery. * Patient requires additional planned major procedure at the time of AAA repair or within 30 days before or after AAA repair. * Dialysis dependent renal failure or creatinine \> 2.5 mg/dL. * Allergy to or intolerance of radiopaque contrast agents. * Patients with a known sensitivity or allergy to implant materials. * Patients who cannot discontinue oral anticoagulation or antiplatelet therapy at the time of the study procedure. * Patients with history of bleeding diathesis or hypercoagulable condition. * Patients with thrombus, calcification, and/or plaque ≥ 2mm in thickness and/or ≥ 50% (180°) continuous coverage of the vessel circumference in the intended seal zone. * Patients with irregular shaped calcification and/or plaque that may compromise the fixation and sealing at the proximal or distal implantation sites.