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Teleoperated Puncture Robot System: Preliminary Design and Workspace Analysis


Radiofrequency ablation (RFA) guided by X-ray images aims to relieve herniated disc pain with minimal invasiveness and fast recovery. It requires an accurate and fast positioning of the puncture needle. We propose a teleoperated robotic system for percutaneous puncture to support RFA. We report the kinematics modelling and workspace analysis of the proposed system, which comprises preliminary and accurate positioning mechanisms. Preliminary positioning mechanism automatically drives the needle to the puncture area, and accurate positioning is then achieved by teleoperation under the guidance of X-ray images. We calculate the teleoperation workspace of the robot system using a spatial search algorithm and quantitatively analyze the optimal structural parameters aiming to maximize the workspace. The workspace of the proposed robot system complies with clinical requirements to support RFA.

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Corresponding author

Correspondence to Yanping Lin.

Additional information

Foundation item: the National Natural Science Foundation of China (No. 51575343)

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Hu, B., Lin, Y., Chen, S. et al. Teleoperated Puncture Robot System: Preliminary Design and Workspace Analysis. J. Shanghai Jiaotong Univ. (Sci.) (2021).

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Key words

  • percutaneous puncture
  • kinematics modelling
  • Stewart platform
  • teleoperation workspace

CLC number

  • TP 242

Document code

  • A