Overview of Device
In October 2021, MELTIN completed a prototype of a new “robotic neurorehabilitation device for the fingers,” which is under development. Clinical research is currently being carried out at Juntendo University. We aim for this device to come into use in 2022.

Providing rehabilitation by combining three pioneering technologies

MELTIN is a venture company involved in cyborg projects that leverage our strengths in bio-signal and biomimetic robotic technology. The robotic neurorehabilitation device for the fingers also aims to combine biological signals and our original algorithms that analyze bio-signals using AI, and carry out effective rehabilitation by accurately registering the intended movements of the wearer and providing assistance with firmly responsive movements.

AI analysis and algorithms
Biomimetic robotic
Feature 1
“Bio-signal” that offers real-time understanding
This device measures fine detail of myoelectric data—around 1,000 times per second—through sensors attached to the forearm. Myoelectricity is an electric signals in the muscles that convey the brain’s motor commands .By providing high speed and highly accurate algorithms that convert this data to the robot’s movement, the robotic neurorehabilitation device for the fingers can register the intentions of the user and support the movements of their fingers. This supports the re-education of the brain by offering instantaneous linking between intentions and movements.
AI analysis and algorithms
Feature 2
Analysis technology that uses original AI algorithms
The myoelectric data is analyzed using our original AI algorithms. These algorithms instantly identify whether the wearer is trying to open or close their fingers and assists their hand movements within a timeframe appropriate for neurorehabilitation. The device offers motion assistance connected to effective rehabilitation through our new analysis technology tailored for neurorehabilitation.
Biomimetic robotic
Feature 3
“Biomimetic robotic technology” that offers dexterity and power
MELTIN uses robotic technology that reproduces the movements of the human body based on biomimetics. With this, it is possible to reproduce finger movements with delicateness, dexterity, and power. The “robotic neurorehabilitation device for the fingers” can realize the “pinching” action that is vital to occupational therapy through the application of technology that reproduces these fine movements. The device worn on the fingers uses a wire-driven mechanism to enable strong movement, creating enough power to assist people with spasticity in opening their closed hands under their own strength.
A design that is easy to keep using
because it is simple, safe, and user-friendly

MELTIN’s “robotic neurorehabilitation device for the fingers” is set up just by putting the motion assistance device on the fingers and attaching a sensor to the forearm. It is possible to adjust the size of the device according to the length of the fingers, making it highly wearable, and it can be used on either the left or right hand. The myoelectric analysis is complete within a minute of putting the device on, and the rehabilitation starts. The inside of the main body is equipped with motors to move the wires and a computer for analyzing bio-signals, ensuring that the motion assistance device worn on the hand is lightweight, weighing no more than 500 g. The device also ensures the safety of the wearer by controlling the power. In addition, individual finger control enables the wearer’s fingers to make various actions with differing speeds according to the wearer’s condition. Using the five-digit type makes it easy to carry out occupational therapy at varying degrees of difficulty, and reducing the components that cover the palm of the hand as much as possible for the wearer to feel the sensation of gripping something. The device is also characterized by an easily comprehensible, user-friendly UI (user interface).

※This software is under development.
What is MELTIN?
We are a venture company founded in 2013 that develops cyborg technology. Our original “bio-signal processing technology” and “robotic technology” that reproduces the human body serve as our two core technologies, and we are developing our cyborg business in this new area on two axes: avatars and medical device. In 2016, we were involved in the world’s first “Cyborg Olympics”; we announced our concept model, the avatar robot MELTANT-α, which uses robot technology, in 2018, and the MELTANT-β for field testing in actual working environments in 2020.



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