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First bionic hand moves from the patient's nerves

http://www.ansa.it/web/notizie/rubriche/scienza/2009/12/01/visualizza_new.html_1623008194.html

Works limb biomechanics, Italian technology

02 December, 20 : 49

ROME - The first artificial hand controlled by the human brain has opened the door to the future. Two or three years will be enough to get a hand much smaller and lighter than the current much more versatile, and perhaps in a short period as they exit the stage to try to get cyberprotesi wearable and permanent. E 'scenario presented today in Rome by University Biomedical Campus, and Scuola Superiore Sant'Anna in Pisa, in charge of the world's first experiment in which a patient who had lost his right hand in a car accident he checked with his brain movement of a hand of steel, aluminum and titanium two kilograms heavier. The connection between the artificial hand and nervous system were four electrodes, each much thinner than a hair, implanted in two nerves of his left arm.
- Efficient: The intervention was conducted in November 2008, the following month was dedicated to testing, after which he worked for 11 months of data analysis, said the scientific director of the Research Center of Biomedical Campus, Paul Maria Rossini. "Now we know we have a system that knows how to classify the characteristics of three types of motion with an efficiency close to 100%."
- AS IN FORMULA ONE: "The research started many years ago, with the first studies conducted on man-machine in 1984. Since then progress has been continuous and, as in the cars of Formula One, we've added new parts every week, "said Paolo Dario, Scuola Superiore Sant'Anna and the father of the project along with Maria Chiara Carrozza.
- SMART HAND: the bionic hand LifeHand just experienced in the project already has a successor, SmartHand, which weighs 600 grams. Ideally, Dario noted, is to get a hand to the lost of 400-500 grams. "We can not run the car in Formula One, but prepare the potential, "said Silvestro Micera, Sant'Anna School.
- AN EXTRAORDINARY PATIENT: Pierpaolo Petruzziello, the Brazilian patient of Italian origin who has lost his right hand in a car accident, was selected from 30 volunteers. Now it's time to seek new candidates for the next steps are that the selection will be long and difficult.
- Electrodes: two nerves were disconnected from the patient after one month, as a precautionary measure. "At first glance appear to be in excellent condition and more efficient," said Klaus Peter Hoffmann, the German IBMT them has developed.
- THE FUTURE: "There will be new projects only when we have a technology that allows us to move forward," said Ross. We must have a powerful interface, permanent electrodes, miniaturization that will lead to a hand 'portable' and algorithms contained in a microchip implanted. Maria Chiara Carrozza for "encouraging results allow us to look to the development of research on prosthetic hands with the necessary caution, but with justified confidence supported by scientific evidence." The one announced today, he added, is "a positive milestone" in general "for the Italian research, which has proven to be a team and be able to support prestigious international partners."