College - Author 1
College of Engineering
Department - Author 1
Biomedical Engineering Department
Degree Name - Author 1
BS in Biomedical Engineering
Date
6-2025
Primary Advisor
Iian Black, College of Engineering, Biomedical Engineering Department
Abstract/Summary
The purpose of this document was to present a senior design project from Cal Poly sponsored by Matt Robinson at the Hanger Clinic in San Luis Obispo to provide biofeedback for users of upper limb protheses. This project focuses on individuals with trans-radial upper limb amputations, including patients with congenital limb deficiencies who use trans-radial prosthesis, who receive very little or no sensory feedback from their prosthetic device. This sensory feedback device was intended to be used as a training tool with a myo-electric hand-like upper limb prosthesis in a clinical setting. This document provides an overview of the different steps and processes of this project, including the background, objectives, project management, concept development and analysis, failure modes effect analysis (FMEA), detailed design and prototype manufacturing plans. These sections detail the different customer requirements, engineering specifications, project goals, design development, manufacturing steps, and test results that were involved in designing this device to provide prosthesis users with sensory feedback. The key requirements for this device include distinct discrimination between prosthetic fingers (at least 75% accuracy), a wide range of force detection (0-20N) and transmission (0-5N), while ensuring the user’s comfort and safety. The results section includes short-term test data that demonstrates that each of these key requirements have been met. Most notably, individuals using the device were able to determine with 100% accuracy when force was applied to individual fingers and with at least 90% accuracy whether that force was relatively soft or hard.
URL: https://digitalcommons.calpoly.edu/bmedsp/229