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november 21, 2019 - Toyota

Toyota Refines Rehabilitation Assist Robot and Launches New Welwalk WW-2000

Toyota Motor Corporation (Toyota) has announced the launch of its new Welwalk WW-2000, a robot designed to provide rehabilitation support to individuals with lower limb paralysis as a result of stroke and other causes. Orders for the new model commenced in November 2019 and planned to be delivered in February 2020. The Welwalk WW-2000 upgrades the various features of the prior model (the Welwalk WW-1000), namely the rehabilitation support functions based on motor learning theory and the ease of use in clinical settings. Specifically, it adds functions that display assistance settings in real time to improve abnormal gait as well as a game function that helps maintain motivation so patients continue their rehabilitation efforts. The adoption of these new functions reduces burdens on therapists compared to the previous model while providing more efficient walking training to patients.

The prior model was provided on a rental basis to medical institution, but in light of requests from healthcare institutions and market assessments, the Welwalk WW-2000 will be made available for purchase with the aim of improving overall quality of service. In addition, production will be implemented at the Motomachi Plant, with a sales target of 50 units sold to medical institutions annually.

In line with the vision of "freedom of mobility for all, and the joy of self-reliance," #Toyota has been developing rehabilitation assist robots in collaboration with Fujita Health University in Toyoake City, Aichi Prefecture since the end of 2007, with the robots used in pilot testing in healthcare settings and clinical research at medical institutions starting in 2011. In 2017, rental of the Welwalk WW-1000, which was the first #Toyota product to receive approval as a medical device, commenced. The Welwalk WW-1000 received the 8th Robot Award* in 2018, and to date, it has been used at approximately 80 medical institutions in Japan. With the launch of the Welwalk WW-2000, #Toyota hopes to bring the "joy of walking with one's own feet" to even more patients while reducing burdens on therapists.


Overview of the Welwalk WW-2000
Active extension, flexion and rotation movement device
Welwalk WW-2000 (Certified medical device number: 301AFBZX00046000)
Hardware23.5 million yen (24.5 million yen in Okinawa) (MSRP) Maintenance agreement50,000 yen/month × 60 months (starting in the second year)
Main bodyThe product comprises the overall system including treadmill and monitorRobotic legFitted onto individuals with lower limb paralysis to assist in knee flexion and extension movements


  1. Rehabilitation support functions based on medical motor learning theory
  • Adjustable level of assist to suit the patientA natural gait from the start and ensures a certain level of exercise, reducing burdens on therapists.
  • Automated recognition of abnormal gait by patientsMultiple sensors detect abnormal gaits and the success or failure of walking can be quantified in real time. Potential setting changes that may facilitate improvement of an unnatural gait are automatically displayed.
  • Feedback and game function to motivate patientsFeedback is provided visually on a monitor and by sound according to the walking stance and number of steps taken, and a game function makes the rehabilitation more enjoyable, helping to maintain patient motivation to practice.
  1. Ease of use in clinical settings
  • Simple construction and functions, including easy fitting and central touch panel operation
  • Enhanced data managementWalking status can be confirmed in real time and objective, quantitative data can be recorded and played back.
External dimensions1,200 mm (width), 2,570 mm (depth), 2,380 mm (height) Weightapprox. 700 kg (main body); approx. 6 kg (robotic legs)
  • Toyota has consigned sales planning and management to Good Life Design Inc., which will sell the robot to customers through Paramount Bed Co., Ltd. and Pacific Supply Co., Ltd., its sales agents.
  • Toyota will consign service to Paratechno Co., Ltd.
Motomachi Plant, #Toyota Motor Corporation
*The 8th Robot AwardWith the aim of growth and broadening the utilization of robotics technologies, it awards the most excellent robots, parts, software and the related utilization, R&D and the activities of human development, through the coordination of Japan Machinery Federation and Ministry of Economy, Trade and Industry.

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