well I’m domenico prattichizzo are
robotics professor here
at the University of Siena and I’m with two
dear friends alessandro bondi I had
the opportunity and pleasure of
meet in recent months and
giovanni spagnoletti engineer of mine
team I will talk about robotics to support
of people who unfortunately suffered
permanent damage from stroke
in particular we are always there
focused on the study of hands from
always in my laboratory we have
studied the human hand the robotic hand
hand study methods technologies
here you see my daughter’s hands
Elena of one of her violent girlfriends
they work with the bricks what they will do
they touch them and explore them there and there
they grab them they assemble for
build who knows what fantasy they had
imagined
and it is the hand is the prehensile organ
perney par excellence ours and has been
the first instrument of the human being
thanks to which we have built others
tools and thanks to which we have
could do is the theme of doing and
permanent in all in all
Today’s presentations we have done
roads bridges motorways communication
I could not imagine a world so much
different from this without our sense
in our hands
well we at our laboratory there
we deal with robotics and we try to
create artificial versions of the
manipulation here you see a system of
tele operation where there is a hand
robotics that today is working with the
same bricks to take that back
that he was doing Elena and Diana
violating them in their game but it is
a system of tele operation that is a
system that allows to remotely control the
hand operation elsewhere
we can imagine dangerous environments
or contaminated environments we can
imagine, for example, the disaster of
fukushima where instead of sending the
an operator’s hand inside the
site to manipulate a valve I send a
robot that is remotely operated
here you see the hands of leonardo lenardo
apple trees one of our collaborators
laboratory that moves his hand operates
these robots that that reproduce the
hand movement on a hand
robotics this hand this way
robotics of fine movements looks at you
because he grabs and grabs these
objects or measurement also perceives them
also the forces that came later come
reflected on Leonardo’s hand on the
the operator’s hand you know very well
we all played those bricks
that if there is no perception of the
force can not be assembled with the
sufficient stability in pieces for
create our buildings well I come
at the focus of the day Alessandro
me and giovanni three friends collaborators
who started working together
to many others now there is John but
giovanni represents a very group
very broad and alessandro is one
a person a friend a subject who has
had a stroke
four years ago and unfortunately due to
this stroke reports damage
permanent to the upper limb in
the stroke is now particular to the hand
the stroke is one is a plague
so I reported some data there are
about 2 300 new cases of stroke each
100 thousand inhabitants per year ie as if
in Siena we had about 150 people
that are affected by stroke per year e
60 percent of these people
suffers permanent damage to and of the
effects to the engine sensors system in
particular to the upper limb and in
particular to the hand the hand is a
I always do very important organ
this example I do not want to redo even
Now
that is, if you look at my body since
motor point of view from the point of
view of the joints my body
the left hand is made by two hands
the right hand and a body ok if
Now forget your hands for a moment
and feet and just look at mine
body I actually am another hand
I am a palm and four fingers 1234 e
maybe the thumb because why
look at this shoulder this shoulder a
two degrees of freedom in terms of
articulation exactly like this
articulation here
ok of our finger the latter
articulation and has an articulation
similar to that of my elbow
so an arm is absolutely
identical from the point of view of the
motor complexity
apart from the trick of scale and
absolutely similar a finger then me
from the motor point of view or one
complexity basically I speak from
so three-handed robotic is clear
that if something happens to me on the level
cerebral that affects the motor area
the chance that it will be hit
an area in charge of hand control
it is very high so damage is done
permanent to
good with alessandro I want to emphasize
that from a scientific collaboration is
born a great friendship and alessandro has
a problem with a hand problem
right and in particular it fails anymore
to do homework tasks
of manuals can no longer open one
bottle can no longer use
the tube of the toothpaste allows the
pasta on the toothbrush
everything we normally do
with two hands with tried to look into
literature in robotics what was there for
he did not and I found that for people
who had an xv I found a lot
often a lot of research that you are
focused on prosthetics
now I thought but the number of
defendants that is infinitely less
compared to the number of people who
they have engine problems because of the
of stroke, for example, of the hand, however
to one nevertheless it has developed
much technology for hands implants
robots that replace the arta
missing in case of defendants there are
technologies that help people
with strokes and they are called
exoskeletons are substantially of the
robotic structures that simulate the
human skeleton and help with engines
electric to move the hand in the club for
compensate for the lack we say of the
muscle deletion true but clearly
this type of devices is a lot
challenging I can use it
only in rehabilitation centers
I can not use it at home
so we started thinking about ourselves
we are very focused on the hands
on technologies and engines and of the
manipulation and technology for the
we have begun to think
we began to concern ourselves with the hand
For a moment, look at the hand show
Now look at your hand and start
to think for a moment what is the minimum
number of items you have
need to grab an object
ok I see you’re using three fingers
but what is the minimum number of fingers per
grab an object 2 but it really is
211 thousand just one because I in
reality could use the palm
ok a fixed part and the thumb
opposable
that stabilizes my grip is not one
manipulative trap is not one
manipulation until hamas fine ma
established an object and it is exactly
this is the idea we had in the
our robotics lab here at
siena to develop an instrument
robotic that is an extra finger a
sixth finger a robotic thumb coming in
in operation only when necessary
that gives alessandro and people that
they like him a need to use
the hand of new aca again
ability to grip the ability to
grab this hybrid time
partially made by the human body e
the other part instead is made by one
robotic part so there is no need
to develop a complete robotic hand
but a simple opposable finger the
thumb opposable that thanks to
which we can achieve the
took this is our robotics
finger is a supernumerary finger and is
made with wearable technologies
then we’ll see this title work
we did extremely wearable
that was the very first version of
a few years ago this title is
become a bracelet and a
bracelet that is under the jacket and
that Alessandro puts in position and that
switch from position to docking position
working mode or only when he has it
need for which with the hand again
so let’s say the hand is intact
manages to put the robotic finger in
working position and then manages to
make the holds what he can do is successful
to do these tasks, look at it
grab the bottles cans
to open to remove the cap or to
open potato chips or
even to break bread
recovering the ability to manual that
now it no longer has because of the effect
of the stroke here in this
particular case the case there is a
interesting element we have developed
a ring to control movement
of the finger this ring also one
robotic ability because it is in the case
of poetry you can have because of a
Strokes are not a motor problem but
also a perceptual problem the hypo
extended to reduce the ability to
to perceive therefore when I have a finger
robotic and I do not know how much strength
there is nothing but sensitivity
then we reflect on this ring
the strength of the grip
so he feels on the side
contralateral effect of the socket
done with your finger ok then somehow
is a sensorimotor interface of
this extra lindt
for him this is very nice I have it
prepared for alessandro first tests
alessandro is a bit tense to a certain
he says no, I can not do it
he puts it back there you work now they were
the very first tests when Alessandro
he could not put the jam
on the biscuit slice, no, not there
I can do
in reality then he is very accomplished
skillful left the car him now this
Once the black is successful, you succeed
spread the jam on the slice
biscotte among other things we have learned
many things
one of the things we had to do
for these fingers and doing it is waterproof
because alessandro as well as all the
people who speak ours
lab want to use the video
for example to stabilize the base
of the moka and put us on the net
so there is need and jokes that it is
water resistant and this time not
he managed in his mouth and finally succeeds
to do this kind of operation
look at what motivate a person like
Alessandro to move his arm
and all benefit because as we said
as the soul used to say before a
keep in motion of rabarama gestures
of the plan too
a rehabilitation field here we see
still an important task that Alessandro
he is doing in particular sta
blossoming an apple what you can do
also do so in your pocket difficult and
even for skilled people with both
the hands
peel the apple and make small pieces
it’s not such a simple thing
it requires high manipulative skills and
in this case alessandro succeeds with
this extra finger to stabilize
the object peel the apple and make it
of the of the slices
another thing I want to show you
with this other subject than also
very interesting we compensate for the
operation of the hand but in fact
rehabilitate the arm the people who
they do not have the ability to grab with
the sixth finger tend to tend
arm and hand inside the
pocket for which we say throwing down
all the star muscle system
skeletal because not holding it on
model moving the arm ma
basically we say down if it loses it
its efficacy is not a thing
absolutely good for anyone and in
particular for the person they must have
need rehabilitation then
let’s say with this sestu finger yes
resumes motivation to remove the
arm we are also studying some
finger sex capacity not only of
compensation of the function but also of
rehabilitation
I’ll show you the last video before
pass the word to alessandro
alexander here is using the sixth
finger
and as he had not so careful in the
we also added the third arm
arm that helps her
habitual rigors to raise the arm
to go to reach the height of
head and he will see how to download the
video
will be able to comb it that it is not
escaped the brush and then with it
the will also shout the third arm
manages to reach the level of the
head precisely thanks to rehabilitation
that remaining also in centers
specialized
him now compared to when he has it
known has much more power than the
arm for which it was will show us with
sex I say what I would do but it does not
this utility or to check and
same finger a cap where there are
and electrodes of friends who
they collect the vitality of the brochure
triumphalistic
enough to notice only giulia you activate one
dyed electron word captured this
start the spa the switch that
it starts ok alessandro maybe
we can move on to your performance
thanks Alessandro is now using the
sixth finger that we have simplified
in the high-wearing version of here
siena
that is, it has no interfaces and as you see
alessandro manages to open the
bottle to grab it with the extra
finger to open the bottle to make
whatever we want to do and then
put it back into place
open your finger and put it into operation
alessandro maybe you can do some
comment works eco alessandro to make us
a comment on his experience
I lost use on the right side, not
look now but I had trouble in the
speak and therefore I am obliged to
take neuroscience a note
meadow beginning born by chance if protracted
over time they give a little hope to
those like me that need
help to do everyday things with the
third behind that initially me
it seemed it could also serve little
event able to cut an apple
open a bottle a jar or
why not bring a bag because no
bring a shopping bag by having them
of the hand for any eventuality
left
we tried the PTO’s
really strong and so I can
really to carry shopping bags
I’m sorry you did not do it
see why you really wear it
shopping bag and all over the other
hand for all eventualities
so I only have to say thank you
really much data on engineering
catalizzo and all its staff included
in the kind grateful to our loved ones
I end up telling him that ours
laboratory and a laboratory that human
center and centered on we develop
robotics for humans to improve the
quality of life of the people who are
they need
and it is a laboratory that was born in Siena
he was born one in a provincial town
splendid like that of Siena that of
province only geographically because
plays a central role in one of the
most important robotics networks for
innovation research and this thanks to the
network thanks to the possibility of being
permanently connected
there is this great chance we have in it
this in this millennium to be able to
work wherever we want with i
best means with the best minds
taking full advantage of the beauty and the
quality of life we can have
in the city of the province like that of
siena thanks thanks
[Music]
”
Be First to Comment