Prototype 1
Feedback Training for Foreign Body Removal Procedures in Emergency Department
In progress
This project was a collaboration between a team of students from Brown Engineering and Dr. Sakina Sojar from the Rhode Island Hospital
Team:
Primary Role:
Project type:
Asad, Emily, Ariana, Ethan, Nondi
& Dr Sakina Sojar (Advisor)
Electronics, Stakeholder Analysis User Research, Prototyping
Med Tech, Engineering, UX Research
Intro
December 2022
Background and Context
Problems being faced by Doctors in the ER
●Over 8,000 children are treated yearly for nasal foreign bodies
●Over 12,000 children are treated yearly for aural foreign bodies
●Foreign body obstruction is most commonly result of children’s curiosity
●Obstructions can range from food to toys like marbles
Emergency Department procedures:
●Parent’s kiss
●Katz extractor
●Alligator forceps
●Irrigation
●Suction
So there was a need for medical trainees to practice foreign body removal from the nose and ear on a low-cost medical simulator.
This would improve first pass success rates in removing foreign bodies from pediatric patients in the emergency department
Existing ENT FBR training devices
❏Procedural accuracy: should be able to mimic an actual pediatric FB removal procedure
❏Durability: should be long-lasting and used for many practice attempts
❏Low-cost: should be accessible for all emergency departments
❏Anatomical accuracy: should resemble human anatomy and the intricacies involved
❏Ease of use: should be uncomplicated to set up and use
Design Constraints
Developing the Need Statement
Preliminary Design
Initial Design Ideas
Full head Model
Separate Organ Model
AR/VR Training Simulation
●The criteria within the decision matrix are ranked on a scale of 1-5, with 5 being the highest possible score.
●Each criteria are weighted differently according to their importance to the design.
Based on the analysis, Full Head Model was chosen
Design Decision Matrix
Design Ideation
A combination model with focus on the ear component.
Prototyping- CAD + Mold
Scanning
Modified for printing
● For creating the 3D printed ear model, we used Artec Spider™ 3D Scanner to scan a child's ear.
● The 3D printed ear was then used to create a negative mold.
● Then that mold was used to create a silicone casting of the Ear.
Mold-making with 3D-printed part
Casting with 30A silicone
Creating Feedback Mechanism
Haptic response for the Doctor to sense if they are hurting the sensitive parts of Ear or Nose
Testing electrical components
Ear Cavity
Arduino Code
Nose Cavity
Prototype 1 Ear Model
Final project Overview Presentation
