Medical Design Briefs - July 2023 - 16

TECHNOLOGY LEADERS Motors/Motion Control/Robotics
and leisure venues where staff recruitment
can be difficult and where human interaction
must take priority over logistics.
The all-purpose handles used by Miroki
work with tags to make objects grippable
and to identify spaces. In the future, it
will be possible to equip all the rooms in a
hospital ward with these sensors. A nurse
will be able to prepare various breakfast
trays and simply say to the robot: " This is
Mrs. Martin's tray. Every morning at 8
AM, I want you to take Mrs. Martin's tray
to room 103 and bring it back at 9 AM "
and the robot will do it. Or the nurse can
ask the robot to bring back by midday all
the trays that have not been put away. By
means of simple voice instructions, the
robot will be able to carry out tasks to
make people's lives significantly easier.
Mirokai: A Technological Challenge
Enchanted Tools was established in
2021 by Monceaux co-founder of Aldebaran,
and Samuel Benveniste, PhD, former
director of France's national center
of excellence for cognitive stimulation.
When the project was launched, the
startup raised the most seed funding in
French robotics history, collecting €15
million and gathering 50 experts with
the range of skills required to bring
Miroki to life.
" We were under time pressure because
we had to make a robot in one year. But
who in Europe could respond quickly
enough, with reliable products that would
be suitable for prototyping, and who
could then work with us on industrial-scale
production? maxon. Working with maxon
was the obvious thing to do
- it was the safe choice, " recalls
Monceaux.
Maxon's teams then assisted
Enchanted Tools
with product design and in
selecting the motor types,
taking into consideration
the technical constraints
and the very tight deadlines
required for the presentation
of this new robot.
ECi 40 motors with planetary
gearboxes were chosen
for the ball bot, while 22mm
diameter brushless
motors from the ECX
Torque range were used on
the other axes.
For Miroki, the challenge was not only to create a robot that people would
accept, but also one they would find useful. (Credit: Enchanted Tools)
Kevin Schwartz, sales engineer
responsible for Enchanted
Tools at maxon
France, and Max Erick
Busse-Grawitz, technology
transfer manager at maxon
International, explain: " Because
the application was
in the area of autonomous
robotics, where the systems
need to support themselves,
and where the actuators
are consequently both
part of the solution and
also part of the problem
(due to weight, inertia, and
16
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size), we proposed motors with high
power density and a high torque-to-inertia
ratio, in other words, a low mechanical
time constant, and gearboxes with
high efficiency and high torque density. "
Through many telephone calls and onsite
meetings, maxon's teams worked
closely with the technical teams at Enchanted
Tools. Step by step, the Enchanted
Tools teams narrowed down their
needs and worked out new specifications,
axis by axis. Building on the success of
the prototyping phase, maxon is now assisting
the startup with the analysis of
these new specifications, to define the
best possible technical solution for the
industrial production phase. The objective
is to achieve a balance between technical
performance and production cost.
" We needed partners who could supply
components on time that would be
reliable, robust, and suitable for the
needs of R&D. What we appreciated in
maxon is the DNA of the company:
hard-working people making trustworthy
products that inspire confidence and are
scalable, " says Monceaux.
After successfully presenting its
first
prototype, Enchanted Tools intends to
conduct a second round of fundraising
in 2023 to start the production of its first
models. Once operational, the Mirokai
will be subjected to real-world conditions
so they can learn and improve, which
will make them more and more useful. A
partnership has already been established
with the AP-HP Broca hospital in Paris,
which specializes in geriatric medicine.
Enchanted Tools plans to have its robots
on the market by 2025-2026. Its target is
to produce 100,000 robots in 10 years.
" Our robots are designed to fit into people's
lives quickly, with no false promises, "
says Monceaux. So, get ready to see a
little rolling fox offering you a refreshing
beverage very soon!
This article was provided by maxon
Group, Taunton, MA. For more information,
visit www.maxongroup.us. To
learn more about the Enchanted Tools
story, visit https://enchanted.tools.
Miroki's presentation video can be
viewed at https://www.youtube.com/
watch?v=PSfKjOWjk8Y.
Medical Design Briefs, July 2023
http://www.maxongroup.us https://enchanted.tools https://www.youtube.com/watch?v=PSfKjOWjk8Y http://www.medicaldesignbriefs.com

Medical Design Briefs - July 2023

Table of Contents for the Digital Edition of Medical Design Briefs - July 2023

Medical Design Briefs - July 2023 - Cov1A
Medical Design Briefs - July 2023 - Cov1B
Medical Design Briefs - July 2023 - Cov1
Medical Design Briefs - July 2023 - Cov2
Medical Design Briefs - July 2023 - 1
Medical Design Briefs - July 2023 - 2
Medical Design Briefs - July 2023 - 3
Medical Design Briefs - July 2023 - 4
Medical Design Briefs - July 2023 - 5
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Medical Design Briefs - July 2023 - Cov4
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