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About

Chang-Ho Uhm is a robotics and medical engineering researcher whose work centers on haptic feedback systems, smart fluid technologies, and minimally invasive surgical robotics. His research has made meaningful contributions to the development of master-slave robotic systems that enhance surgeon control and precision during minimally invasive surgery (MIS), a field where accurate force feedback is critical to patient safety and procedural success. Uhm's most notable contributions involve the design and control of haptic master devices utilizing electrorheological (ER) and magnetorheological (MR) fluids — controllable smart materials that enable precise, responsive force generation. His 2013 work on repulsive force control in a 3-DOF ER fluid-based haptic master, his most cited paper with 16 citations, demonstrated how such systems can deliver reliable tactile information to surgeons operating robotic instruments remotely. Complementary studies extended this framework to 4-DOF configurations, integrating both position and force feedback for richer operator-robot interaction. With a focused body of work published in 2013 and accumulating over 30 combined citations, Uhm's research addresses a pressing challenge in surgical robotics: bridging the sensory gap between human operators and robotic tools, ultimately advancing safer and more intuitive minimally invasive procedures.