An Exploratory Study of Iliac Artery Branch Stent for Internal Iliac Artery Reconstruction in Abdominal Aortic Aneurysm/Iliac Aneurysm Repair

Inclusion Criteria: 1. Patients with iliac aneurysms combined with or without abdominal aortic aneurysms and internal iliac arteries reconstructed with iliac branch stents; 2. Male or female ≥18 years old, ≤85 years old; 3. Life expectancy \> 2 years; 4. The patient signed the informed consent voluntarily and was able to comply with the treatment plan and complete the follow-up and examination as planned. Exclusion Criteria: 1. Fungal or ruptured aneurysm 2. Known complications of thoracic aortic aneurysm require interventional treatment 3. American Association of Anesthesiologists (ASA) Grade V 4. Creatinine \> 2.5mg/dL or dialysis patients 5. NYHA Grade IV heart failure 6. Intercalation, severe calcification, or anchoring area with thrombosis 7. Severe curvature or narrowing of the iliac and/or femoral arteries, resulting in difficulty in stent delivery 8. Conduct another device or drug study within 1 year of treatment 9. Systemic infection 10. Combined with connective tissue disease 11. Known history of drug use 12. Known allergies or allergies to equipment materials