Soft Robotics and ApplicationsSurgical Simulation and TrainingKidney Stones and Urolithiasis Treatments

Yuen Chiu Ng, Yiping Xie, Haichuan Lin, Longyue Tan, Xilong Hou, Chen Chen, Zengguang Hou, Shuangyi Wang

2026.2.1IEEE Transactions on Medical Robotics and Bionics

DOI: 10.1109/tmrb.2026.3654244

Abstract

Flexible ureteroscopy is a cornerstone of kidney stone management. However, conventional methods pose occupational risks such as musculoskeletal strain and radiation exposure. This study presents a modular robotic system with AI-enhanced human-robot collaboration, designed to address these challenges while maintaining clinical efficacy. The system features a disposable ureteroscope to minimize infection risks and a modular architecture for rapid assembly. It integrates dual control frameworks: force-feedback-based robotic arm positioning and adaptive dual-mode leader-follower teleoperation. Computer vision enables autonomous endoscopic delivery through image classification based on ResNet-18 (precision: 99.58%, recall: 99.79%) and visual guidance within real-time stone detection via YOLOv7 (96.69% mAP@0.5). The validation experiments for autonomous delivery demonstrated a mean axial positioning error of 1.246 mm (<inline-formula> <tex-math notation="LaTeX">$\sigma \,\, {=} \,\, 0.965$ </tex-math></inline-formula>), which meets stringent clinical standards. Crucially, the proposed leader-follower robotic control architecture demonstrated non-inferior operational efficiency compared to manual manipulation (manual: <inline-formula> <tex-math notation="LaTeX">$204.7~{\pm }~71$ </tex-math></inline-formula>.5 s vs. robotic: <inline-formula> <tex-math notation="LaTeX">$202.1~{\pm }~64$ </tex-math></inline-formula>.9 s), while the vision-guided function establishes a technical pathway toward autonomous surgical execution. These results validate the system’s clinical equivalence to manual techniques, augmented by enhanced precision, safety, and adaptability, positioning it as a novel solution for modern urological interventions.

Citation format

NG, Yuen Chiu, et al. Modular robotic system with AI-Enhanced human-robot collaboration for disposable ureteroscopy in kidney stone surgery. IEEE Transactions on Medical Robotics and Bionics, 2026, 8(1): 208–218.