New VR rehabilitation developed by Tohjisha-Kenkyu


VR rehab-station all over Japan:  WAR against Phantom Limb Pain!

We are campaigning for rescuing PLP suffers. Pain is occurring NOW, it is an everyday life and very serious problem for each patient. We strive to spread our VR rehabilitation tool as many places as possible so that we can reach out to the ones who needs our support ASAP! We continue to seek for understandings and collaborations from medical institutions and rehabilitation facilities to establish such VR rehab-station, so that anyone can easily access to the tool.

I hope to reach out for those who suffer from the painful life. I continue to strive to deliver “physical well-being” for many alones who deserve.


For the development and implementation of the “VR Neuro Rehabilitation System,” one of the unique and distinguish point is a cooperative researcher Kazunori Inomata(PLP suffer) and with his intensive feedbacks throughout the development based on his own experiences, it has been rigorously evaluated from a “peer-support” point of view.

Do you know Phantom Limb Pain?

Phantom Limb is a phantom sensation of the body part that is no longer there following amputations, or exits but suffering from movement and sense disorder due to damaged nerve injury.  It depends on people how and where it feels.Phantom limb pain (PLP) refers to ongoing painful sensations that seem to be coming from the part of the limb that is no longer there or could not feel. It can be long-lasting and severe and for many cases it negatively affects his/her ADL and QOL.
Here are some examples of what Phantom Limb Pain Feels Like (from 2013 The War Amps) :


Tearing, Squeezing


Crushing, Pressing


Fingers digging into the palm


Stabbing with a red-hot stick

It is urgently determined clear consensus as to its cause for PLP and effective pain management to reduce pain levels to allow people suffering from PLP to get back to living and enjoying life again.


VR Application for alleviating PLP using neurorehabilitation techniques

This is a rehabilitation method combines VR technology with Mirror visual feedback method to improve the alleviation of PLP. Using the advanced VR technology, mirror-reversed computer graphic images of an intact arm (the virtual phantom limb) were presented to patients via a Head-Mount Display (HMD), inducing the perception of voluntary execution of movements of their phantom limb when intending bimanual movements. With the system, patients are able to immerse themselves into the virtual environment and control their virtual phantom limb with their intact limb movements. When the patients simultaneously move their bilateral hands, the feeling of producing intentional movements of their phantom limb is induced, which could effectively alleviating intractable PLP by overwrite traumatic experiences and restoring brain function.

  • Head-Mount Display(Oculus Rift) Motion Capture(Leap Motion, KINECT v2) Operating PC(Unity game engine) 2m*3m space required


    Head-Mount Display(Oculus Rift)
    Motion Capture(Leap Motion, KINECT v2)
    Operating PC(Unity game engine)
    2m*3m space required

  • The episodic therapy causes a significant alleviation of phantom limb pain. <br>
																							   (79%, 19 out of 24 subjects)<br> Highest pain reduction rate average: 95%<br>
																							   Most of subjects who had good results tends to be able to move their phantom limb in their mind after the therapy training.

    Study Result

    The episodic therapy causes a significant alleviation of phantom limb pain.
    (79%, 19 out of 24 subjects)

  • For patients who have a strong trauma by accident

    3Dscan model

    For patients who have a strong trauma by accident

  • Tracing

    Memories of experience1


  • Ball scooping

    Memories of experience2

    Ball scooping

  • Blocks

    Memories of experience3


About MirrorTherapy-VR


Title:Characteristics of Phantom Limb Pain Alleviated with Virtual Reality Rehabilitation

Link: Pain Medicine 21 Dec 2018

Title:What types of pain can virtual reality relieve?

Link: The University of Tokyo / Press Release March 2019
Virtual Reality

Virtual reality (VR) is an interactive computer-generated experience taking place within a simulated environment. Although VR is most commonly used in entertainment applications, there are a wide variety of applications for VR including?medical and sports science and engineering?

  • This is a “Tohjisya-Kenkyu” based Rehabilitation method and the recent study reveal strong effect on alleviating PLP
  • With high quality graphic images through HMD, patients are able to immerse themselves and exercise rehabilitations.
  • With the advanced VR technology, it can accommodate any type of phantom limb image (variety of posture, telescoping and size)
  • Provide alternative neurorehabilitation method for those who cannot use mirror visual feedback method.
  • minimal and simple(UI) design for self-rehabilitation everywhere

This VR rehabilitation not only proven to alleviate PLP for neuropathic pain following amputation, but also our recent study suggests that neuropathic pain caused from cerebral strokes can also be alleviated. Such patients in pain is estimated to be more than 5 million in Japan.

  • Masahiko Sumitani (MD,PhD)
    / Department of Pain and Palliative Medicine, The University of Tokyo Hospital, Tokyo, Japan
  • Michihiro Osumi (PT,PhD)
    / Neurorehabilitation Research Center, Kio University, Nara, Japan
  • Yuji Inoue (MS)
    / Visualization design department, Power Place Inc., Tokyo, Japan

Exchange meetings and Study group sessions for PLP

  • Make awareness and learn about PLP.
  • Organize study sessions / establish a place for discussion on regular bases.
  • Manage high level of motivation via peer support which will subsequently improve the result for the rehabilitation to alleviate PHP.
  • Share “PLP Calendar”

Nontraditional rehabilitation method using Advanced technology, makes some people skeptical, which often affect the results for worse. I believe It is very important to understand the principle on how such neurorehabilitation techniques affect one’s brain and body part before commencing the rehabilitation training.


“ONGAESHI” Project

With an advanced and growing digital technology of VR, there is now a possibility of improving and relieving intractable PLP. A representative director of KIDS co., ltd Kazunori Inomata is a survivor of a serious motorcycle accident in early 1990. Since then it has been his life time mission to “ONGAESHI (Payback)” for those in needs. While he developed his skills and expertise for the leading edge “high quality real-time CG technique” in automotive design industry, Mr. Inomata was always searching for idea for improving medical treatment. Combined with Head-Mount Display (HMD), he has developed “Virtual Reality(VR) Neuro Rehabilitation System,” which is a first “ONGAESHI” project.

Be a physical well-being for limb disorders 

KIDS co., ltd.
   CEO Kazunori INOMATA1-12-6-6B Yushima Bunkyo-ku
Tokyo 113-0034 Japan