Project
Design
Electronics
Hardware
Software
Gallery
intelexo is a collective group of UC San Diego Engineering and San Diego Mesa Community College students who have created a cheaper alternative for crural exoskeletal technology that will aid a patient in their ability to sit, stand, and walk.
DESIGN
The pivotal design of this prototype is a balance of simplicity, and customization.
Our design is comprised of 3 components: leg joints, PVC pipe, and SMART hardware.
Leg Bars
The main frame of our SMART Leg
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JM Eagle PVC pipe
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Inner radius 5/8 inches
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Outer Radius 7/8 inches
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Total of 4 rods required
- For this prototype, the dimensions used were:​
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Two 16’’ in height
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One 19’ in height
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One 10” in height
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Knee Bars
U-shape component fitted in front of the joint to protect the knee from injury and keep the rods of the SMART Leg in a parallel position
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Amount of pieces: 5
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3 JM Eagle PVC pipes
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For this prototype, the dimensions used were
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6”, 3”, & 3”
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2 DURA U.S.A PVC piping adapters, L-shape
Motor Joint
This piece allows for junction of the leg bars to promote user-directed rotation of the prototype.
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DURA U.S.A PVC piping adapter ( t-shape) with an inserted ROHS Step Motor 28BYJ-48 motor in the center.
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The adapter is cut in the center with a 1 inch diameter circle w/ two outer circular wings at opposite ends (diameter is 3/16 inches)
ELECTRONICS
Schematics and hardware used to bring our exoskeletal leg to life!
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ROHS Step Motor 28BYJ-48
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Motor Drive Chip - ULN2003APG
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MyoWare Muscle Sensor
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Arduino UNO
SOFTWARE
Arduino Uno controls the heart of the system; a user's muscle impulses are monitored via MyoWare Muscle Sensors, and are sent as feedback to the Arduino. The code receives the intensity of each impulse and determines whether the impulse exceeds a defined threshold which would be the human body's way of telling the hardware how to move.
Gallery
OUR TEAM
