Friday 16 June 2023

3D printing of brain blood vessels could revolutionise neurosurgery–new technique shows how



A new 3D-printing technique using silicone can make accurate models of the blood vessels in your brain, enabling neurosurgeons to train with more realistic simulations before they operate, according to our recently published research.

Many neurosurgeons practice each surgery before they get into the operating room based on models of what they know about the patient’s brain. But the current models neurosurgeons use for training don’t mimic real blood vessels well. They provide unrealistic tactile feedback, lack small but important structural details and often exclude entire anatomical components that determine how each procedure will be performed. Realistic and personalized replicas of patient brains during pre-surgery simulations could reduce error in real surgical procedures.


3D printing, however, could make replicas with the soft feel and the structural accuracy surgeons need.

3D printing is typically thought of as a process that involves laying down layer after layer of melted plastic that solidifies as a self-supporting structure is built. Unfortunately, many soft materials do not melt and re-solidify the way the plastic filament that 3D printers typically employ do. Users only get one shot with soft materials like silicone – they have to be printed while in a liquid state and then irreversibly solidified.





3D-printing silicone with AMULIT

As researchers working at the interface of soft matter physics, mechanical engineering and materials science, we decided to tackle the problem of interfacial tension by developing a support material made from silicone oil.


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