Abstract
With the advancement of minimally invasive surgery, research pertaining to miniature continuum robots is progressively gaining momentum. In contrast to non-magnetic continuum robots, magnetic continuum robots (MCRs) exhibit a simple structure and dexterous operation characteristics, as they can be remotely and wirelessly controlled through magnetic manipulation. Dexterity serves as a vital parameter in evaluating MCRs. Nevertheless, conventional MCRs encounter limited dexterity and controllability issues due to their soft bodies. To enhance the dexterity of MCRs, we propose a novel concentric magnetic continuum robot (C-MCR), comprising a magnetic catheter and magnetic guidewire in a concentric combination. The substantial discrepancy in stiffness between the catheter and the guidewire facilitates the C-MCR to operate in four working modes, resulting in superior dexterity. Within this study, we evaluated the dexterity of the C-MCR utilizing a homemade eight-coil electromagnetic system. The experimental findings demonstrate that the C-MCR exhibits better dexterity, simplified operation, minimal risk, and promising prospects for clinical applications.
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Acknowledgement
This work was supported by the CAS Project for Young Scientists in Basic Research (Grant No. YSBR-036), the National Natural Science Foundation of China (Grant Nos. 62273331, 61925307, 62127811, 61821005), and the CAS/SAFEA International Partnership Program for Creative Research Teams.
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Li, N., Lin, D., Wu, J., Gan, Q., Jiao, N. (2023). Dexterity of Concentric Magnetic Continuum Robot with Multiple Stiffness. In: Yang, H., et al. Intelligent Robotics and Applications. ICIRA 2023. Lecture Notes in Computer Science(), vol 14274. Springer, Singapore. https://doi.org/10.1007/978-981-99-6501-4_28
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DOI: https://doi.org/10.1007/978-981-99-6501-4_28
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