A mechanical device for sutureless aorta-saphenous vein anastomosis

The aorta-saphenous vein anastomosis is a very common anastomosis with constant anatomy. A device for sutureless aortovenous anastomosis is presented which adapts the principle of venous eversion to the end-to-side anastomosis. The use of this device in 20 dogs demonstrated that reasonable early patency (85%) and subsequent long-term patency (100%) can be achieved. The device possesses the potential for rapid multiple anastomoses to the proximal aorta, but the eversion principle requires that the anastomosis be smaller than the vein utilized. Clinical application of this technique will require both modification to enlarge the anastomosis and demonstration of long-term patency competitive with suture techniques. The device is not yet ready for clinical use.