Tools: Electrical equipment (oscilloscope, multimeter, etc.), electrical components (resistors, capacitors, etc.), Arduino microcontroller, servo motor
Collaborators: Bhavneet Bola, Kiriya Awad
<aside> đź’ˇ For the second year biomedical design project, I designed a mechanical model for an egg cracking device that is controlled by electromyographic (EMG) signals.
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The problem space we considered was:
Individuals with impaired hand functionality encounter substantial challenges in performing daily tasks, leading to reduced independence and quality of life. There is a need for an EMG-powered device that can effectively restore essential hand functions, allowing users to regain control and improve their ability to interact with their environment.
After completing our own research and delving deep into this issue, we came to the realization that many users face difficulty completing motor functionalities required for everyday tasks. We decided to make a prosthetic solution for the function of cracking an egg. Some of the mechanisms that would need to be considered include..
<aside> đź’ˇ Situation Impact Statement:
Therefore, there is a need to design an EMG-powered egg-cracking device specifically for individuals with impaired hand functionality—enabling them to perform this common kitchen task independently and safely—providing a durable and user-friendly solution that promotes autonomy and confidence in daily activities.
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The design of this project included two major components: electrical and mechanical.
The electrical portion of this design project involved capturing the EMG signal from the body and converting it into a digital signal that can be interpreted by a servo motor that is attached to the mechanical system.
The EMG signal needs to be captured from the arm. The circuitry needs to be designed to amplify, filter, and convert the signal that is produced. The following sub-circuits were integrated in the final circuit design…