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Masters Capstone Project at UC Berkeley in collaboration with Bluegoji Health-Tech Startup ( 2022-2023 )
In this project, my team closely worked with a Berkeley PostDoc in the EECS department to carry out research efforts towards the creation of a medical device. At the same time, the industry partner BlueGoji has provided the resources and startup view for the prototype's success.
Our goal is to develop a functional in-ear EEG device to collect real-time cognitive data during physical rehabilitative tasks. Our solution utilized EEG electrodes strategically placed on an earpiece to record data, along with a paired headset that maintains earpiece stability while housing a custom module for real-time data processing and transfer for visualization.
As a Mechanical Design Engineer and project co-leader I have devoted most of my time to drafting and manufacturing the earpiece prototype designs and soldering the flex PCBs.
Last version of FPC hand soldered
In-Ear EGG Project brief.pdfHand-drawn sketches
CAD models for earpiece inserts
During this project, I developed my skills in rapid prototyping. The device has gone through 6 design iterations. In every one of them, we had to meet the project requirements and account for suggestions from both BlueGoji and our Lab advisor, and come up with new solutions taking into account the expensive materials we are dealing with and the detailed manufacturing process the earpiece has to go through.
The design procedure has been exhaustive, where I would first draft sketches from concepts and ideas coming from team discussions. Later, using SolidWorks I created CAD models of the parts that need to be 3D printed. An important design methodology we have been following is to print a first one rough sample, then check tolerances and correct dimensions specifics, and lastly print the rest of the batch.
Cross-functional team leading is an important parts when dealing with a large team like ours. Therefore I have been encouraging all my teammates to have honest and clear communication to ensure all stages of the prototyping chain were properly being carried out with no delays.
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