LONG-TERM PEDIATRIC PROSTHETIC
January 2018 - May 2018
Design Iteration Prototypes
The three designs pictured represent the "Looks Like" prototype, made of common household materials, the "Works Like" prototype, capable to 'growing' and bearing weight, and the "Finished Good" prototype, ready for mass production. The most significant change visible over the three designs is the locking mechanism which evolved from a double side latch, to a center front latch, to a built-in threaded shaft collar with a locking bolt.
Animated 3D Model
This video depicts the main components of the device and how they interface with each other to become the final device.
Design Verification & Validation Testing
This video depicts my project partner and I conducting a rudimentary weight-bearing test on our "Works Like" prototype. The final "Finished Good" prototype was designed to have a thicker pylon shaft to increase stability.
Morphological Chart
This chart is a common design tool that illustrates how we compared and contrasted our top brainstorm ideas for this device, evaluating CTQ features. From this our top CTQs were then combined into designs and evaluated numerically using a Pugh Chart.
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Sequence Drawings
Illustration of step-by-step user instructions.
Failure Mode and Effects Analysis (FMEA) chart
10 being high risk, 5 being moderate risk, 1 being low risk - this chart depicts the analysis of the design as components and as an assembly, identifying potential failure modes and assessing the causes and effects of them. This is done to ensure quality and safety of the device.