Hiroyuki Sajima

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About

Hiroyuki Sajima has made pioneering contributions to the field of medical robotics, with a particular focus on developing safe, MRI-compatible actuation systems. His key research areas include pneumatic actuators, surgical navigation, and image-guided interventions. Sajima’s most notable work, the "MR-Safe Pneumatic Rotation Stepping Actuator" (2012), has garnered 43 citations and represents a critical advancement in enabling robotic systems to operate within the high magnetic fields of MRI scanners without compromising safety or image quality. This innovation allows surgeons and surgery-support systems to perform less invasive procedures by maintaining precise positional relationships between surgical instruments and anatomical targets during real-time imaging. By addressing the fundamental challenge of actuator compatibility with MRI environments, Sajima’s research has directly contributed to the development of safer, more accurate surgical navigation tools. His work continues to influence the design of pneumatically-driven mechanisms for interventional MRI, bridging the gap between diagnostic imaging and therapeutic robotics.