Burr Hole Model

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This is medical model or task trainer for Burr Hole procedures.  If there is bleeding (or pus or other fluid) around the brain, the pressure from the built-up fluid can compress the brain tissue, creating a life-threatening condition. A “burr hole” is a small hole that a physician (usually a neurosurgeon or emergency room doctor) makes in the skull to remove some of the blood and relieve the pressure on the brain. This is a rare, but emergent, procedure – so practicing it is essential, but can be challenging. I created this model to help train the emergency medicine residents at my hospital on this procedure.  There’s room between the skull and brain for a bag of “blood.” And only the smaller bone insert needs to be reprinted each time. Use a sheet of silicone or modeling clay for “skin” and “soft tissue.” An incision is made into the skin with a scalpel, and then the hole is carefully drilled into the bone, while carefully avoiding the brain underneath. I included a model of an ear as an optional anatomic landmark to help guide the incision site. If you use this model, please post photos or videos of the task trainer in action! Note: Print settings listed below are for the Prusa i3 MK3S. Skull-       Based on “Skull” but PatimStudioso   https://www.myminifactory.com/object/3d-print-skull-122503-       PLA-       Print at 0.2mm-       20% infill, Gyroid pattern to mimic trabecular bone-       supports from build plate only, overhang angle threshold 50 degrees Bone Insert-       PLA-       Print at 0.2mm-       70% infill, Gyroid pattern to mimic trabecular bone-       supports from build plate only, overhang angle threshold 50 degrees Brain-       Based on “Human Brain” by Vaclav Krmelao   https://www.myminifactory.com/object/3d-print-human-brain-11053-       TPU 92A-       Print at 0.2mm-       5-10% infill, Archimedean Chords pattern to provide flexibility/squishiness to mimic the feel of brain tissue-       2-4 bottom layers-       2-4 top layers-       No supports Base-       PLA-       Print at 0.2mm-       20% infill, any structurally robust pattern (I used Gyroid)-       No supports Ear-       Based on “Sound deverting human ear for tablets” by printhiso   https://www.thingiverse.com/thing:892512-       TPU 98A-       Print at 0.2mm-       5-10% infill, Archimedean Chords pattern, to provide flexibility to mimic the cartilaginous earlobe-       2-4 bottom layers-       2-4 top layers-       No supports Skin-       Use silicone sheets or modeling clay fit over the skull Blood-       Corn syrup, synthetic blood, or cranberry juice in a sealed clear plastic bag-       Fit snugly in between the brain and the skull; the drill should puncture the bag after drilling through the bone

About the author:
MaureenNemetski
My kids asked for a 3D printer for the holidays a few years ago. They agreed to combine all of their birthday and holiday gifts from all of their relatives, and they finally saved enough to buy our first 3D printer in December 2016. Since then, we've been learning about 3D design together and having lots of fun watching our designs come to life. My day job is being a Pediatric Emergency Room doctor. I love being able to combine work and play by designing and printing medical models, task trainers, and even PPE. Please feel free to remix and share these creations - they're meant to help train the next generation of physicians, nurses, and other healthcare workers, and I want them to be put to use. If you use any of them in an educational or healthcare setting, please post a photo! And of course, my family and I love creating unique toys, jewelry, gifts, and accessories. We hope you enjoy our designs and would love to see your makes and remixes!

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