Changyeob Baek

Seoul National University, Harvard University Press

Papers

Total Citations

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About

Changyeob Baek is a researcher at the forefront of surgical robotics and medical device mechanics, whose work bridges the gap between continuum robot design and the fundamental physics of surgical materials. His primary research areas include concentric-tube continuum robots, surgical knot mechanics, and the interplay between friction, elasticity, and plasticity in medical sutures. Baek’s most impactful contribution is his pioneering work on anisotropic patterning to mitigate instability in concentric-tube robots—a critical challenge that has limited their clinical adoption in minimally invasive surgery. This study, with 58 citations, demonstrated how strategic surface modifications can suppress torsional instabilities, thereby expanding the workspace and reliability of these steerable needle-like manipulators. He further advanced the field through finite element modeling of concentric-tube robots (13 citations), providing a computational framework for predicting their behavior under complex loading. In a notable departure from robotics, Baek’s 2023 study on surgical knot strength (22 citations) revealed that knot security depends on a critical interplay between friction and elastoplastic deformation, challenging empirical guidelines with a predictive mechanical model. This work has direct implications for reducing fatal suture failures. Baek’s research is distinguished by its integration of rigorous mechanics with practical surgical needs, offering both theoretical insights and actionable design principles for safer, more effective medical tools.