Yoshikazu Nakajima

About

Yoshikazu Nakajima is a pioneering robotics researcher whose work sits at the intersection of medical robotics, soft robotics, and orthopedic surgical assistance. Over more than two decades, he has made significant contributions to the development of intelligent robotic systems designed to enhance precision, safety, and outcomes in clinical and rehabilitation settings. Nakajima is perhaps best known for his groundbreaking work on robot-assisted fracture reduction, culminating in the FRAC-Robo system — a robotic platform designed to achieve anatomical reduction of femoral fractures while logging procedural data (32 citations). Complementing this, he has addressed critical safety challenges in surgical robotics through formal hazard analysis frameworks and adaptive milling systems for total knee arthroplasty. More recently, Nakajima has pioneered the application of physical reservoir computing to soft robotic systems, demonstrating that the air dynamics within pneumatic exosuits can serve as both sensor and computational medium — a genuinely novel paradigm enabling wearable gait assistance without conventional electronics (27 citations). His work on needle insertion robots for vertebroplasty and body-mounted spinal puncture assistants further underscores his sustained commitment to minimally invasive surgical innovation. With contributions spanning bipedal locomotion to pneumatic wearables, Nakajima represents a uniquely broad and enduring voice in medical and rehabilitation robotics research.

Research Focus

Key Achievements

Top Papers

1. 1
   Robot-assisted femoral fracture reduction: Preliminary study in patients and healthy volunteers

   32 citations · 2008
2. 2
   Pneumatic Reservoir Computing for Sensing Soft Body: Computational Ability of Air in Tube and Its Application to Posture Estimation of Soft Exoskeleton

   27 citations · 2021
3. 3
   Development of the Needle Insertion Robot for Percutaneous Vertebroplasty

   18 citations · 2005
4. 4
   A Robot Assisted Hip Fracture Reduction with a Navigation System

   15 citations · 2008
5. 5
   Hazard analysis of fracture-reduction robot and its application to safety design of fracture-reduction assisting robotic system

   13 citations · 2010
6. 6
   Online Assistance Control of a Pneumatic Gait Assistive Suit Using Physical Reservoir Computing Exploiting Air Dynamics

   12 citations · 2022
7. 7
   Optimal control of cutting feed rate in the robotic milling for total knee arthroplasty

   11 citations · 2010
8. 8
   Adaptive Controlled Milling Robot for Orthopedic Surgery

   10 citations · 2007
9. 9
   A body-mounted surgical assistance robot for minimally invasive spinal puncture surgery

   7 citations · 2014
10. 10
    Experimental approach for the biped walking robot MARI-1

    6 citations · 2000

Key Collaborators

Contact & Links