Thermal and Electromagnetic Constraints in Medical Microrobots

Steering microrobots through deep neural tissue presents a significant challenge due to the heat generated by electromagnetic actuation systems. Excessive Joule heating (I²R losses) in coils and eddy current formation during magnetic field modulation can damage sensitive brain regions, limiting clinical applicability. This project aims to explore low-heat magnetic field generation methods for microrobot navigation. The study focuses on analyzing the relationship between current intensity, coil geometry, and thermal distribution, seeking to optimize electromagnetic coil design to minimize temperature rise while maintaining precise steering capability. Using analytical modeling and planned simulations, we aim to identify magnetic configurations and control strategies that reduce overall heating. This work contributes to developing thermally safe actuation systems for future biomedical microrobotics applications, providing a foundation for safer in-vivo navigation technologies and next-generation minimally invasive medical interventions.