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About

Yan Guo-zheng is a pioneering figure in biomedical micro-robotics, whose work has fundamentally advanced the development of minimally invasive medical devices. His primary research focuses on bio-inspired locomotion systems, particularly earthworm-like and squirming robots designed for internal medical procedures. His most influential contribution is the prototype of a piezoelectric medical microrobot (2003, 19 citations), which introduced a multi-joint squirming mechanism based on inertia-friction theory—a foundational concept for active endoscopy. Building on this, his endoscope system driven by a squirmy robot (2002, 17 citations) directly addressed the limitations of traditional medical endoscopes, paving the way for miniature injury surgery. Yan further demonstrated the clinical potential of his work with a flexible micro-robot system for direct monitoring in the human trachea (2006, 9 citations), which employed a 3-DOF pneumatic rubber actuator to navigate the respiratory system. His research on a micro-robot for colonoscopy (2005, 7 citations) validated the approach through in-vitro experiments in pig colons. Beyond medical applications, Yan has also explored biomimetic hexapod robots and multi-agent robot communication systems, showcasing a broad expertise in robotics. With cumulative citations exceeding 70, Yan Guo-zheng’s work remains a cornerstone for researchers developing next-generation, active medical robots that promise safer, more effective diagnostic and therapeutic procedures.