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Stephen Rugg Ankle foot orthotics are used by individuals who have - - PowerPoint PPT Presentation
Stephen Rugg Ankle foot orthotics are used by individuals who have - - PowerPoint PPT Presentation
Stephen Rugg Ankle foot orthotics are used by individuals who have foot drop syndrome Foot drop syndrome is the inability to flex your foot up while walking Source (4) Christopher Sullivan did research on terrain detection to try and
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Christopher Sullivan did research on terrain
detection to try and improve ankle foot
- rthotics
Currently 2 MSD teams are designing active
ankle foot orthotics to implement his terrain detection technology
Source (1)
Source (2)
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Customer Need # Importance* Description CN1 1 Adjusted for different sized orthotics CN2 1 Support the active ankle foot orthotic CN3 1 Move along the path a human leg follows while walking CN4 1 Physically similar to the action of someone's foot who has foot drop CN5 1 Have foot impact the surface CN6 1 Easily adjust the settings of the leg motion. CN7 1 Last for 3 years of testing CN8 1 Be able to adjust to a flat, inclined, and declined surface CN9 1 Able to move the entire device CN10 1 Have diognostic capabilities CN11 1 Output and display the critical parameters CN12 2 Be able to adjust the walking speed CN13 2 User interface is easy to use CN15 3 Aesthetically pleasing
Deliverable: Testing mechanism that will accurately mimic the motions a leg makes while walking
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0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
- 50
- 40
- 30
- 20
- 10
10 20 30 40 Angle of Lower Leg Rotation Throughout Level Walking Cycle (Adult) Angle (degrees) Fraction of Walking Cycle Normal Extra Slow Slow Medium Fast
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 0.5 1 1.5 2 Different Walking Paths from IR Perspective Period Voltage (V) Level Walking Down Ramp Up Ramp
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4 Mechanical
Engineers
- Structural Design
- LabView Programming
- Matlab Programming
- Control System Design
- Vibrations
- GD&T
2 Electrical Engineers
- Control Systems
- Signal Processing
- Motor Selection
- Data Collection
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1.
Gordon KE, Sawicki GS, Ferris DP. Mechanical performance of artificial pneumatic muscles to power an ankle-foot orthosis. Journal of Biomechanics 2006;39(10):1832-1841.
2.
http://www.freemanmfg.com/product_info.php ?products_id=424&osCsid=7a2e25fe5bc3acab 82b7901458b59053
3.
Sullivan, Christopher. Design of a Terrain Detection System for Foot Drop. RIT Master’s
- Thesis. 2012