In
the past few years, we have seen 3D printing helping medical procedures and
surgeries around the world. Based on CT scans, printed bones to organs
such as hearts have all been made to assist physicians. It can be applied to
just about any medical field and Dr. Ivar Mendez, head of surgery at the
University of Saskatchewan, proved that by 3D printing a brain replica for a
complex deep brain stimulation procedure.
The
procedure involves opening the skull and inserting electrodes into toe brain
folds and a small error can do permanent damage. So Dr. Mendez always carefully
prepares using computer simulations, but this time the technology failed him.
The limitations of the software became apparent as it could not predict how the
tissue would react. That’ why the Canadian physician contacted the University’s
school of engineering and assembled a team of experts: engineers, a
radiologist, MRI specialists and neuropsychologists. All with the purpose of
translating complex brain MRI data into 3D printable files.
After about seven months of work, they 3D printed an
initial prototype in rubber, but that didn’t accurately display the necessary
smaller features. Just now, Mendez and his team completed a larger, more
detailed model he can work with. ‘You can actually do the surgery. You can
actually put the needle in the brain,’ he said of the surgical model. ‘You can
get really lost, because you really don’t know. But when you have the model it
lets you see exactly where you want to go,’ he adds. 3D printed in transparent
synthetic rubber, this brain replica even matches the consistency of an actual
brain.