In the US, a new bionic prosthesis has been developed: he “intuitively knows” what touches on

< IMG SRC = "/Uploads/Blogs/5F/30/IB-FQPEOGFQO_40DF4A49.jpg" Alt = "in the US developed a new bionic prosthesis of hands: he & quot; quot; < p > Engineers from John Hopkins University (USA) have developed an innovative hand prosthesis that can hold everyday items, including M & Rsquo; what toys and bottles with water.

~ ~ < p > it can also adjust the grip how it does the usual hand to avoid damaging the object.

< P > In a study, the results of which were published in Science Advances Science, scientists say that this device enables people who have lost the upper extremities, safely and freely interact with the environment, writes Science Daily. < P > Bionic prosthesis, like most of the prostheses of the hand, functions using muscle signals from the forearm. These signals “connect the bridges” between the brain and nerves, allowing your hand to bend, bend or react to the touch.

< p >According to Nitish Takra, Professor of Biomedical Engineering at Jones Hopkins University, who managed the development of prostheses, a robotic hand “intuitively knows” what she touches, just as the nervous system does.

~ ~ > < p >< em > “If you keep a cup of coffee, where do you know that now let it let ? your palm and fingertips send brain signals about what the cup slips. < 62 < p >< Em > Our system is based on neural signals & ndash; It simulates the touch receptors of the hand to create nerve messages, so that the “brain” or his computer, understand whether the object is hot or cold, soft or solid, whether it slips out of hand “, & nbsp; & ndash; ndash; < p >The device has a multi-fabric system of rubber polymers and a rigid inner skeleton, printed on a 3D printer. Thanks to three layers of tactile sensors, the prosthesis can not only touch but also capture and distinguish between different surfaces of objects, shapes and textures.

< p > The fingers of the prosthesis have M & Rsquo; which joints filled with air. They are controlled by the muscles of the forearm. The bionic hand is also equipped with sensory receptors that create a realistic feeling of touch. Sensory information from the fingers “translated” into electrical signals and transmitted to the nervous system.

< P > During a test in the laboratory, the prosthesis successfully recognized 15 different items and manipulated them. Among them were soft toys, dishwashing sponges, cardboard boxes, pineapples, metal bottles with water, etc.

< P > In the course of the study, engineers found that the new prosthesis exceeded other alternatives, providing accuracy of 99.69% when working with objects. Scientists were amazed at its ability to gently lift a thin plastic glass with water with three fingers.

< P > According to Nitish Tara, such prostheses require three components:

< Ul > < li > sensors to gather information from the environment; < li > System to convert this data into nerve signals; < l > a mechanism for stimulating nerves that allows a person to perceive these feelings.

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< P > Scientists say they still need to work on improving the invention. In particular, it is an increase in the force of grip, new sensors and the use of other materials.