Medical Design Briefs - July 2022 - 37

Real-time Teleoperaton of system
Remote Control
of Robot Arm
Joystick
Knob
Magnet
Endovascular surgery is a specialized,
minimally invasive procedure that involves
carefully twisting and guiding a
thin medical wire through the body's arteries
and vessels to a target location, in
a way that avoids damaging vessel walls.
The procedure typically requires years of
training for a surgeon to master.
Robotic systems are being explored as
assistive technologies in endovascular
surgery. These systems mainly involve
motor drives that advance and retract a
wire while twisting it through the body's
vasculature.
Neurovascular
Phantom
The MIT team envisions that its robotic system could be installed at small hospitals and be remotely
guided by trained surgeons at larger medical centers. (Credit: MIT)
their
Zhao and his team have published
findings
in
Science
Robotics.
MIT co-authors include lead author
Yoonho Kim, Emily Genevriere, and
Jaehun Choe, along with Pablo Harker,
Robert Regenhardt, Justin Vranic,
Adam Dmytriw, and Aman Patel
Massachusetts General Hospital (MGH),
and Marcin Balicki of Philips Research
North America.
at
" But having a robot twist with the same
level of sophistication [as a surgeon] is
challenging, " Kim notes. " Our system is
based on a fundamentally different
mechanism. "
The team's new system builds on work
from 2019, in which they demonstrated
steering a magnetically controlled
thread through a life-sized silicone model
of the brain's blood vessels. They did
so at the time using a handheld magnet,
about the size of a soup can, that they
manually manipulated.
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Medical Design Briefs - July 2022

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Medical Design Briefs - July 2022 - Cov1
Medical Design Briefs - July 2022 - Cov2
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Medical Design Briefs - July 2022 - Cov3
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