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Development of an image-guided robotic system for surgical positioning and drilling

Published online by Cambridge University Press:  01 May 2007

Ching-Shiow Tseng
Affiliation:
Institute of Biomedical Engineering, National Central University, Chungli 320, Taiwan
Chiao-Chi Huang
Affiliation:
Department of Mechanical Engineering, National Central University, Chungli 320, Taiwan
Chen-San Chen*
Affiliation:
Department of Mechanical Engineering, Northern Taiwan Institute of Science and Technology, Taipei 112, Taiwan
*
*Corresponding author. E-mail: cstseng@cc.ncu.edu.tw
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Abstract

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This study develops a novel image-guided robotic system that can be used to position biopsy needles or drill fixation holes. After the patient has received a CT-scan, the registration of the image, localizer (patient), and robot frames will be done by finding the optimum transformation matrix among the image and localizer coordinates of the fiducial markers and the DRFs mounted on the robot. Then, surgical paths planned on the computer displayed images can be transformed to the robot frame, and the robot is thus capable to move surgical tools to the preplanned location. The positioning error is about 2 mm and the orientation error is about 0.23°.

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Article
Copyright
Copyright © Cambridge University Press 2007