Bionic prostheses are provided for testing

Anthropomorphic devices simulating human limbs are ready for mass production

A subsidiary of Rostec Corporation – Institute of Electronic Control Computers named after I.S.Bruk (INEUM) – has provided a set of anthropomorphic bionic prosthetic human elbow, knee and foot controlled by neurointerface to Federal Service for Surveillance in Healthcare (Roszdravnadzor) to develop methods and conduct clinical trials.

As was informed to “Izvestia” by Chief Engineer Arsenty Gusev, the use of such devices can now make life easier for people with disabilities, and in the future will form the basis for the biomechanical system design for an exoskeleton, including for combat use.

- Our prosthesis solves the problem of creating a device, which follows natural movements of a human body - anthropomorphism, - explained Mr Gusev. - The concept “persons with disabilities” no longer exists. The system is adaptive, i.e. customizes itself to individual parameters of a user: weight, speed, gait (manner of walking). At the same time, the main know-how is the ability to transmit commands via a non-invasive interface “brain-computer”, or as they call it in the West, via the BCI (brain-computer interface).

This element looks like common earphones with a sensor on the frontal part and a small digital screen in front of your eyes.

- The human brain is unable to concentrate longer than 60 seconds, - says Sergey Gaidukov, Mr Gusev’s colleague. - All talks about managing whatever devices by the power of thought over long periods – is so far a fiction. Our interface captures a user's attention concentrated on one of the icons on a display, meaning a specific command. While at the same time a sensor detects the electrical activity of the brain, and jointly this leads to such command execution.

According to Mr Gusev, the bionic prosthesis of a human lower limb (BINK) provides the most complete recovery of the lower limb functions.

- The effect becomes most easily evident using the example of stair climbing - says Mr Gusev. – A person using conventional prosthesis will demonstrate a nonreciprocal, step-to-step pattern; while with our prosthesis he will be able to make a reciprocal step-over-step stair climbing. During the leg swing phase BINK’s functional length is reduced by raising the toe of the foot module and by stooping the knee joint unit. When contacting a stair, the foot module returns to its original position and the knee stretches rapidly, helping a person to climb up.

The neurointerface allows changing the motion regime: walking, running, stairs climbing or squatting. The elbow joint can also respond to commands received through the sensor detecting the neuromuscular activity. All of this provides comfort for a user and ensures registry of intentions with high accuracy.

According to the developers, the use of prosthesis does not require any special training. Thus a volunteer, invited to the trials program, adapted to walk within 20 minutes.

As noted by Sergei Gaidukov, the system is ready for mass production, with a cost of a prosthetic device to be around 1 Million Rubles.


27.07.2016, 2349 просмотров.

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