Ergonomic Assessment

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Ergonomic Assessment
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Ergonomic Assessment
The ergonomic concerns of minimally invasive
surgery (MIS) can be divided into two categories
the impact of tools on procedures and the
physical requirements of the procedures. Some
concerns are in the domain of computer science,
and through the use of multi-projector display
systems, REVEAL is developing solutions to many
of these problems.
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Ergonomic Assessment
The Tools MIS cameras are quite small, as they
have to fit on the end of long, thin arms (like
all other MIS instruments). Using the traditional
monocular camera and 2D display causes not only a
loss of luminance and chrominance, but more
importantly loss of depth perception. Most
studies involving 3D displays in a surgical
setting have proved ineffective and have no
definitively improved performance or comfort.
Many have even resulted in headaches, nausea, and
eyestrain. This is due in part from what has
been used to produce 3D images polarized or
shuttered glasses, VR goggles, displays with very
poor viewing angles, etc.
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Ergonomic Assessment
REVEL is developing a massive multi-projector 3D
display that will increase both brightness and
quality.
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Ergonomic Assessment
The physical requirements The traditional
layout of an operating room is also a cause for
concern. The standard display setup for an MIS
procedure involves a CRT monitor on top of a
mobile tower, which takes up valuable space in
the surgical theater. The most natural position
for a doctor is to be standing between the legs
of a patient, with the display located above the
patient's head. However, this space is generally
reserved for the anesthesiologist, so the
surgeon's display may be placed off to one side,
or at an uncomfortable height. Surgeons must be
able to hold awkward postures for long periods of
time, and adding undue stress on the body and
neck to view a display fatigues him or her much
more quickly.
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Ergonomic Assessment
With multiple projectors, surgeons can create an
arbitrarily-sized image, anywhere they choose.
The calibration system used can display images on
any arbitrary geometric shape (domes, curved
walls, etc.), which allows surgeons to tailor the
image based on their needs, preferences, and
unique features of the OR.
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Ergonomic Assessment
In addition, a modern OR is filled with the noise
of various monitors, machines, pagingsystems,
etc., all of which work independently of each
other. This can complicate or even confuse
surgeons. After a massive multiple projector
display is fully developed. REVEAL can begin to
create an integrated GUI, which incorporates
information from disparate sources and present
them in a relevant and useful fashion.