Abstract
Interventional MRI therapy has started in these years, and surgical robots operated under the MRI environment are focused by many researchers to achieve most effective image guided therapy. In this paper, the 2 DOF MRI compatible precision device for interventional navigation is proposed, and system feature is described. It is the purpose that this device supports puncture in the navigation surgery by MRI. It comprises a feed screw, aluminum parts, FRTP parts and ultrasound motor, that are all non-ferromagnetic characteristics. The control device packaging and evaluation experiment with influences of the robot to MR image are reported.
