BME Capstone @ the Design Garden

  • Design Garden
  • Design Innovation Process
    • Global Health Capstone
    • STAT Credentialing Program
    • Voice of the Customer
    • User Needs and Design Inputs
    • Intellectual Property
    • Ideation
    • Prototyping Resources
    • Regulatory Affairs
    • Market Assessment
  • Spring 2025 Capstone Expo Showcase
    • F24 Expo Project Showcase
    • S24 Expo Project Showcase
  • Contact Us

F20 Project: The Brainy Bunch

Connect our team on LinkedIN! 

Megan McDonnell, Maité Marin-Mera, Rebecca Forry, Faith Colaguori

 

The Brainy Bunch

The Brainy Bunch implemented electrical stimulation functionality in a 3D anatomical model of the brain for neurosurgical training.

The functional brain model is seen with neural tracts (shown as wires), which are detected using the circuit setup, and displayed on the interface.

Project Description: 

The current gold standard in neuroncolytic tumor resection surgery training involves anatomical and practical labs conducted on cadaver brains. Cadaver brains are fixed and provide several obstacles to accurate modeling, including inaccuracies in material properties and the inability to respond to electrical stimulation. Electrical stimulation, or cortical mapping, is a critical component of invasive brain surgery that helps neurosurgeons avoid damaging essential cortical pathways. Stimulation is traditionally applied to the brain in a technique that neurosurgery residents learn through observation in the operating room. Our aim is to develop a functional, anatomically accurate brain model that will respond to electrical stimulation and enable residents to simulate cortical brain mapping outside the operating room. Our model was developed using 3D printing and silicone molding techniques. Patient data was compiled to develop an STL file for creating the brain mold, which was then 3D printed with PVA, a dissolvable polymer. Silicone was used to fill the mold, and a silicone tumor was also placed inside. The PVA mold was dissolved, and the electrical components were inserted into the model. The electrical components allow for detection of the tracts within a distance of approximately 5mm, through a process known as electrical coupling. The results of the detection, including an estimate of the current distance from the tract, the type of tract, as well as LED feedback, are displayed in a custom interface for the user. This product was tested for material and electrical properties and has been determined to meet critical design inputs and user needs. Value is added to the market through cost reduction, increased access to training, and potential for expansion into the field of preoperative planning. A provisional patent has been filed for this device, and we expect for it to be regulated through the FDA Class I pathway.

Dr.Alfredo Quiñones-Hinojosa, MD, FAANS, FACS

Department of Neurosurgery

Mayo Clinic Jacksonville

 

 

Submit a Project Proposal

Design Garden Resources

Previous Projects
Sponsor a Project
Design Resources
Global Health Capstone
STAT Credentialing Program

BME Resources

Capstone Design
Coulter Department of Biomedical Engineering

313 Ferst Drive 
Atlanta, GA 30332 
404.385.0124

Contact Us

Capstone Instructional Team
Schedule a Meeting
WordPress Log in
  • Follow
  • Follow

Success!

Subscribe