Burr Hole Model

prusaprinters

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 PatimStudios o 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 Krmela o 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 printhis o 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 Print Settings Printer Brand: Prusa Printer: I3 MK3S Category: Biology