My research focuses on medical robotics and stepper motor technology. Technological advances could improve diagnosis and treatment of e.g. cancer in the breast of bladder, while innovative pneumatic and electric stepper motors offer new ways of actuating various applications.
Sunram is an MRI-guided robotic system for breast biopsy. Being operated by pneumatic stepper motors it is safe to use inside an MRI scanner. The fifth generation is Sunram 5 (video), while new prototypes are being developed regularly.
The Next-gen in-vivo project focuses on bladder cancer diagnostics using a robotically-steered instrument with an optical coherence tomography sensor in its tip. In this project I primarily focus on the imaging side
Multi-axis electric stepper motors offer an innovative way of actuating multiple degrees of freedom using a singular stator which drives multiple rotors simultaneously (video), while sensorless absolute encoder motor technology offer a novel way of measuring the absolute position and torque in stepper motors.
Several pneumatic stepper motor designs are open source. See https://www.vincentgroenhuis.nl/wp/home/2019/10/11/stepper-motor-overview/ for an overview of the different variants of which many are directly downloadable. Contact me (firstname.lastname@example.org) for the non-published designs, and any other questions.