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World’s smallest biomedical robot could pave way for minimally invasive surgeries | At just 0.95 millimeters, it’s 60 percent smaller than any existing model.
Small size, precise steering, and visualized functional treatment are crucial for robotic interventional diagnosis and treatment. Here, the authors introduce a fiberscopic robot which integrates maneuvering, imaging, and biomedical operation abilities in the sub-millimeter scale
Nevertheless, it’s difficult to maintain the contour as small as a submillimeter scale due to the limitation of camera size and fabrication technology, resulting in them not being able to access the narrow pathological areas with a diameter smaller than 2.0 mm in the body, such as lung end bronchus 16 and oviduct 17. 1a), we present an optical fiber-based continuum robot with submillimeter-scale contour that can perform high precision motion and carry out multifunctional operations in situ, capable of accessing constrained channel environments in the body, e.g., lung end bronchial area (Fig. By adjusting the dynamic current applied to each coil, thereby controlling the magnitude and direction of the uniform magnetic field, we can precisely steer the probe tip to follow predefined trajectories, e.g., a circular path (labeled as the red dot curve) (Supplementary Note S8).
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