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 MRI compatible modular designed navigation robot for needle screw insertion is proposed, and system feature is described. It comprises a feed screw, aluminum parts, FRTP parts and ultrasound motor, that are all non-ferromagnetic characteristics. Influences of the robot to MR image(image distortion) are reported.