Abstract
Hepatocellular carcinoma (HCC) is the second most common malignancy in China. As microwave ablation (MWA) is an effective method for liver cancer, a robotic surgical system with ultrasound-directed was designed to assist surgeons on positioning the needles. This robotic system includes a surgical robot with 5 degrees of freedom, a workstation for path-planning and image processing, a conventional 2D ultrasound device, and an electromagnetic (EM) tracking system. Surgery space, clinical operation requirements and optimal mechanical structure are the key factors to be considered in designing a medical robot suitable for use by surgeons. Based on the mechanics of the needle placement robot, we have conducted detailed kinematic analysis, including a combined numerical algorithm and coordinate mapping. Finally, the feasibility of the needle placement robot has been validated by experiment.
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Project supported by the National High-Tech (863) Research and Development Program of China (No. 2006AA04Z216), and the National Natural Science Foundation of China (No. 60875054)
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Duan, Xg., Bian, Gb., Zhao, Hh. et al. A medical robot for needle placement therapy in liver cancer. J. Zhejiang Univ. Sci. A 11, 263–269 (2010). https://doi.org/10.1631/jzus.A1000040
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DOI: https://doi.org/10.1631/jzus.A1000040