If the innovations in prostheses are significant in recent years, Scientists at the University of Pittsburgh recently announced having achieved an unprecedented advance with the design of a bionic arm. The bionic prostheses are not really new, but the technology still groping currently at the connection and the man / machine interface. However, scientists recently presented what is currently the most successful robotic arm controlled only by the world of human thought. Doctors had to implant two sensors directly in the motor cortex of a patient suffering from paralysis 52 years for it to move and manipulate objects with robotic arm just by thinking.
Each sensor records the electrical impulses of brain cells 200, and a software interface transcribes these pulses in order to send to the articulated arm. It took only two days of training to the patient, designed primarily to coordinate his thoughts with action sequences interpreted by the robotic arm, to master the prosthesis. Better yet, with practice and experience, handling should still gain flexibility and precision. According to scientists, after 3 months of use, the success rate of the patient manipulations reached 91.6%, with manipulations performed in less than 30 seconds starting experience. If the system works, as had been amply demonstrated in theory far, one of the recurring problems for this type of interface returns nevertheless tarnish the experience. The standard interface provokes a reaction in the scar tissue that will eventually lead to total blockage of transmission to the computer that controls the arm. So researchers are working on a new wireless interface, while others have already found the solution in the form of carbon nanorods connected directly to neurons. Consider what to leave amputees or disabled people with paralysis a revival of independence in the decades in future.
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