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Published byErnest Booker Modified over 9 years ago
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Stand Alone Group Members: Jaime Alvarez Austin Chamberlain Trey Smith Jung Hoon Kim
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Executive Summary Problem: Elderly or disabled individuals living alone may fall and need help getting to their feet. A need exists for a device to aid them in standing up alone. Objective: Design and build a device to help people stand from the floor. The device should be simple to operate, safe, and affordable.
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Approach Conduct thorough Biomechanical analysis to yield the best solution: Conduct research on nature and severity of falls Consult physical therapist for further information on falls Analyze feasibility of device for various conditions Use BME, ME, and EE expertise to design the best solution
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The Market and Similar Devices 1991 NASA study estimated 8 million people could benefit Many types of lifting devices exist Problems with existing devices User has to possess good upper/lower body strength Don’t lift high enough, descend low enough Designed for wheelchair transport
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Solution: Stand Alone Device Fixed and stable Easily Accessible Unobstructed entrance Simple Mechanism
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Design Background and Specifications Chain/pulley system for lifting Protection from moving parts Stable, welded iron frame for strength Seat should come down to less than 1 in. from the ground Seat should lift high enough for all people (at least 3 ft) Tilting seat movement to aid the user in exiting the lift. Simple control and easy-access seat Seatbelt for safety Cut-off switch Reduce friction and noise
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Model Pictures
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Current Design
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Timeframe March Assess areas that need improvement. Reduce noise of motor. Safety issues. Begin preparing our final design for presentation. Begin analyzing body stresses. Add comfortable, user-friendly features to the device. April Estimate the cost and possible price of the device. Complete work on final presentation & prototype. Complete comfort and safety improvements.
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Costs Winch: $150-$200 Angle iron: $0.60/foot Welding materials: $10 Resources BME lab workshop Machine Shop
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Team Qualifications Jaime Alvarez – ME, Experience with Robotics and Formula SAE participant Austin Chamberlain – BME Trey Smith – BME Jung Hoon Kim - BME, EE, Electrical Engineering expertise for possible use in device control system and operation
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Advisers & Consultants Dr. Paul H. King- Professor of Biomedical Engineering Jason Roberts- State of Tennessee's Employment Security Professor Barnett – ME Professor David Owens – Owen Business School Professor Gary Chamberlain - Welder/ Carpenter
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