Magnetic coil system guides microrobots through opaque environments without need for cameras or visual feedback

https://techxplore.com/news/2026-04-magnetic-setup-microrobots.html

"computer vision tracks robot’s position for path adjustment but impossible in many medical applications/ ultrasound and X-ray often low-resolution, slow, expose patient to radiation... overcome using feedbackless automatic electromagnetic system of coils creating moving trapping point... balances gravity, buoyancy, magnetism locking microrobot into a magnetic field's local maximum where location known based on single coil's electrical current... moving magnetic field moves robots... medical robotics"