I decided to devote
this article to an invention , which I find revolutionary.
For those amputees
returned to a normal life is often very difficult , they must réappprendre to
live with a silicone prosthesis that serves only an aesthetic purpose , they
must cross on their sensitivity and their mobility they had before the
amputation . But with the progress of science and the most incredible
technology today is possible.
Dennis Aabo Sorensen,
a Danish 36 -year-old lost his left arm in an explosion while manipulating
light fireworks . Dennis is subjected to the most revolutionary experience .
Dennis could find to the sense of touch thanks to an experimental artificial
prosthesis connected to the nerves of his arm. The transaction was completed in
January 2013 at the Gemelli Hospital in Rome by a team of surgeons and
neurologists, under the direction of Dr. Paolo Maria Rossini, who implanted
electrodes in the upper left arm amputated. Nearly three weeks of tests were
needed before the prosthesis could be connected to the electrodes by the team
Silvestro Micera .
After that, the
researchers and the patient tested by hand for a week. For these tests , the
patient was blindfolded and with earplugs in my ears. It depended as well as
the sense of touch, the researchers said . The electrodes were removed after
one month, in accordance with the European legislation governing clinical
trials . But according to these researchers , they could remain implanted and
run several years without damage peripheral nerves.
The team Silvestro
Micera , Ecole Polytechnique Fédérale de Lausanne (EPFL ) in Switzerland, has
developed the bionic hand with which the patient can adjust its power to grasp
objects and identify their shape and texture. This prosthesis is provided with
sensors capable of reacting to the tension of the artificial tendon ,
converting electric pulses transmitted information when the patient manipulates
an object. These converted signals equivalent of nerve impulses are transmitted
to the four electrodes on the peripheral nerves grafted arm .
This invention allows
multiple people millliers amputees to hope one day regain sensitivity and
mobility of their amputated limb . According Stanisa Raspopovic , EPFL , the
commercialization of bionic hand should be possible in five years earlier and
15 years later. Mr. Raspopovic, it is difficult at this stage to estimate the
price of such a prosthesis, but mass production should costs down.










