A Endovascular Stent Graft is a synthetic graft implanted within a diseased vessel intended to relieve blood pressure on the weakened vessel walls. Endovascular stent grafts are placed into the blood vessel using a delivery catheter, which enables the doctor to avoid needing to make a large incision on the patient.

Endovascular stent grafts are compacted within the delivery system. While still small-in-size, they are able to enter the body through the vascular system. Once in proper position, they are then deployed or expanded to the required size based on the blood vessel being treated.