Table of Contents
Team Vision for Problem Definition Phase
During this project phase, the team focused on developing a understanding of Essential Tremor, a analysis of team P18043’s work, and a connection to the test Arm team’s project.
Project SummaryEssential tremors are a disorder that often manifests in the form of involuntary rhythmic shaking of the arms and hands. To monitor this, a device was created by a previous senior design team to collect real time motion and muscle activation tremor data. Some of the shortcomings of the previous design were that it was not robust and did not allow for data to be wirelessly transmitted in real time.
The goal of this project is to expand upon the previous design by allowing wireless, real time transmission and display of data in a more robust manner. The device will capture real time filtered motion and muscle activation data, focusing primarily on wrist movements and radical/ulnar deviations. The end goal of this project is to create a functional prototype and to use it to collect data on essential tremors. This data gathered will be used in conjunction with project 19045 (The tremor arm device), which is working on creating a moving model of an arm which will reproduce the motion of essential tremors.
Project Goals and Key Deliverables
- Data collection system that can be worn and used by patients with various levels of essential tremors.
- Collects the appropriate real-time motion data and the EMG data from the muscles involved with wrist flexion/extension, wrist pronation/supination, and radial/ulnar deviation.
- Appropriate filtering and processing will done to obtain usable outputs from the noisy data.
- The data collected with this system must be usable to other MSD teams working on essential tremor mitigation projects.
- Final model should be not intimidating and cannot inhibit natural movement of the user.
Customer Requirements (Needs)
Engineering Requirements (Metrics & Specifications)
- Arm motion may be restricted with wires
- There may be noise associated with wire movement
- Electrodes may fail to collect usable data
- Water damage from sweat
- Wireless interference
- FPGA may take too long to integrate
- Team limited to only BME and EEs
- Patients may be scarce
- Risk patient shock with wires and sweat
- We risk constriction if the device is too tight
- HIPPA violations
- People may not want their data used in a mechanical arm
- Batteries could create toxic or corrosive waste if improperly disposed of
- $1500 Budget
- Weigh Under 5 lbs
- Needs Internet Connection for Data Logging (wireless)
- Portable / Rechargeable Power Source
- Consistent with intellectual property and FDA approvals
- Inconspicuous Design
- Time (2 semesters to design, develop, build and test)
- Access to real world individuals who demonstrate essential tremor
- Consider using components and design resulting from P18043
- Consider as many commercially off the shelf components for the system design
- Team 19045 must be able to utilize generated motion data
Plans for next phase
- Learn more about how the current prototype and code
- Brainstorm ideas to upgrade mitigation device hardware wise
- Sketch a rough design of new upgrades
- Identify different materials for the device
- Research sensors and batteries prices ranges
- Meet with 19045 team to understand more about their project vision and compatibility
- Review C-code for ARDUINO devices