A mandrel device includes a spindle for rotatably attaching to a machine tool, a rotating device for selectively rotating the spindle, and a driving device for selectively driving the spindle in different speed or different torque when the rotating device do not rotate the spindle. The system can include a messaging module configured to receive a message having data elements. The trench is formed so as to penetrate through the p-type semiconductor layer and to reach the second n-type semiconductor layer. One side arm is to provide temporary perfusion to external of the stent graft after deployment of the stent graft into the aorta, and is subsequently blocked.