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Midterm Presentation Biomedical Engineering Design March 11, 2010

This midterm presentation outlines the design and development of an innovative tremor detection and dampening system, aimed at assisting the 5.5 million Americans suffering from intention tremors. Our device targets tremors in the arm and wrist, providing real-time counteractive motions to enhance the user's ability to perform daily activities. The presentation includes background information, current design status, preliminary testing results from the transcutaneous electrical nerve stimulator (TENS), and our future steps towards integrating dynamic dampening mechanisms for improved user experience.

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Midterm Presentation Biomedical Engineering Design March 11, 2010

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  1. Andrea Castañeda, Daniel Miranda, Jennifer Wang, Kevin Yeroushalmi, Joseph Youssef Course Advisors: Gordana Vunjak-Novakovic, Keith Yeager, Aaron Kyle, Sarindr Bhumiratana, Matthew Bouchard Project Advisor: Professor Clark Hung Consultants: Professor Gerard Ateshian, Professor David Vallancourt, Yukkee Cheung Midterm PresentationBiomedical Engineering DesignMarch 11, 2010

  2. Overview • Background • Current status of design • Tremor detection system • Dampening system • Demonstration of functionality • Testing data • Next steps

  3. Background • 5.5 million Americans suffer from intention tremors, which affect their ability to perform daily activities • Our designtargets the area of the arm which is most affected by these tremors • Our device counteracts these unwanted motions in the arm and wrist

  4. Corporate Considerations • Regulatory Pathways • Relatively unhindered by regulatory committees • No FDA or Pre-Market Approval (PMA) • IRB approval • Sales Strategy • Online Retail • 30 Day Money Back Guarantee • Warranty/Servicing • Retail Price: $1000

  5. Preliminary Testing • Transcutaneous Electrical Nerve Stimulator (TENS)-- 60 mA, 4-6 Hz settings simulate intention tremors • 5-7 lbs of dampening force counteract induced tremors

  6. Current Prototype Tremor Detection • TENS • Accelerometer • Microcontroller • Defined parameters

  7. Current Prototype

  8. Current Prototype Motion Dampening • Rotary damper • Acrylic moment arms • Wrist brace • Straps

  9. Current Prototype

  10. Data: Tremor Amplitude • Arm forces

  11. Data: Writing Sample Control TENS TENS + Elbow Brace TENS + Wrist Brace TENS + Elbow & Wrist Brace

  12. Prototype Analysis

  13. Timeline

  14. Timeline Dampening Clutch Design Gear Solenoid Rotary damper

  15. Timeline

  16. Contingencies

  17. Summary • Detection system senses tremors • Mechanical system dampens up to ~50% • Integration of detection mechanism will allow for dynamic dampening • Consolidation of parts will yield ergonomic device

  18. Acknowledgments Consultants Gerard Ateshian, PhD David Vallancourt, PhD Yukkee Cheung • Course Advisors • GordanaVunjak- Novakovic, PhD • Aaron Kyle, PhD • Keith Yeager, MS • Matthew Bouchard • SarindrIckBhumiratana • Project Advisor • Clark Hung, PhD

  19. Questions?

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