Endovascular Aneurysm Repair Devices: Advancing Safety in Vascular Care
Endovascular aneurysm repair (EVAR) represents a major shift in how clinicians manage life-threatening aortic aneurysms. Instead of relying solely on open surgery, which requires large incisions and prolonged recovery, EVAR uses minimally invasive devices to reinforce weakened blood vessels from within. These devices—primarily stent grafts and delivery systems—have transformed patient outcomes and expanded treatment options for individuals who might not tolerate traditional surgery.
At the heart of EVAR are stent grafts, tube-shaped implants constructed from strong, biocompatible materials such as nitinol, stainless steel, and woven polyester or ePTFE fabric. These materials are chosen for their durability, flexibility, and blood-compatible surface. During the procedure, surgeons guide the stent graft through the blood vessels using a long, thin catheter inserted through the groin. Real-time fluoroscopic imaging helps place the device precisely at the aneurysm site. Once deployed, the stent graft expands to create…