This paper proposes a master-slave operated robotic system that features the novel slave manipulator with a modular distal continuum section to address the shortcomings of traditional transanal endoscopic microsurgery (TEM). The slave manipulator consists of two 7-DoF surgical instruments and a 5-DoF endoscopic arm that are designed with distal continuum structures and unfolded … [Read more...] about A Robotic System for Transanal Endoscopic Microsurgery: Design, Dexterity Optimization, and Prototyping
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Transurethral Surgical Robot: Achieving Efficient En Bloc Resection of Bladder Tumor
Bladder cancer ranks as the 10th most common cancer globally. Currently, the standard surgical approach for bladder tumor removal involves transurethral piecemeal resection, which carries high recurrence (60%) and perforation (12%) rates. Although various techniques and robotic systems have been developed for en-bloc tumor resection, achieving a negative resection margin … [Read more...] about Transurethral Surgical Robot: Achieving Efficient En Bloc Resection of Bladder Tumor
Curriculum-Based Reinforcement Learning for Quadrupedal Jumping: A Reference-Free Design
Deep reinforcement learning (DRL) has emerged as a promising solution to mastering explosive and versatile quadrupedal jumping skills. However, current DRL-based frameworks usually rely on pre-existing reference trajectories obtained by capturing animal motions or transferring experience from existing controllers. This work aims to prove that learning dynamic jumping is … [Read more...] about Curriculum-Based Reinforcement Learning for Quadrupedal Jumping: A Reference-Free Design
Reinforcement Learning for High-Speed Quadrupedal Locomotion With Motor Operating Region Constraints: Mitigating Motor Model Discrepancies through Torque Clipping in Realistic Motor Operating Region
This article presents a method for achieving high-speed running of a quadruped robot by considering the actuator torque–speed operating region in reinforcement learning. The physical properties and constraints of the actuator are included in the training process to reduce state transitions that are infeasible in the real world due to motor torque–speed limitations. The gait … [Read more...] about Reinforcement Learning for High-Speed Quadrupedal Locomotion With Motor Operating Region Constraints: Mitigating Motor Model Discrepancies through Torque Clipping in Realistic Motor Operating Region
A Whole-Body Integrated AVATAR System: Implementation of Telepresence With Intuitive Control and Immersive Feedback
This paper proposes an intuitive and immersive whole-body teleoperation system with motion-based control and multi-modal feedback. The system consists of an anthropomorphic teleoperated robot and a haptic interface platform. The teleoperated robot has dual arms with dexterous hands, a head with a neck, a waist, giving it a human-like appearance and a large range of motion … [Read more...] about A Whole-Body Integrated AVATAR System: Implementation of Telepresence With Intuitive Control and Immersive Feedback
