Stand Alone Group Members: Jaime Alvarez Austin Chamberlain Trey Smith Jung Hoon Kim

Executive Summary Problem: Elderly or disabled individuals living alone may fall and need help. A need exists for a device to aid them in standing up alone. Objective: The device should be simple to operate, affordable, and covered by health insurance.

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

Solution: Stand Alone Device Fixed and stable Easily Accessible Unobstructed entrance Simple Mechanism

Current Design

Design Background and Possible Features Ballscrew or Chain/pulley system for lifting Stable welded steel frame for strength Movable armrests for easy seat access Tilting seat movement to aid the user in exiting the lift. Simple easy access seat Sufficient handlebars and supports to enter the seat

Possible Solutions Ball Screw Mechanism Linear Motion Guide Using Ball screw

Model Pictures

Timeframe February March April Begin modeling the device using demonstrative tools. Assess any design concerns or ideas for improvement. Apply concepts learned from our senior design course to our project such as design for failure, safety issues, biomaterials selection, FDA concerns, etc. March Finalize design and test the design to find weakness or flaws in the design in order to refine and improve the device. Minimize or eliminate any errors in our design. Begin preparing our final design for presentation. April Complete work on final presentation & prototype. Consider improvements. Gather information about the feasibility and liability of our design.

Costs Resources Integrated Ball screw & Motor $300-$400 Ball screw $29/ft $30 for bearing nut Resources BME lab workshop Machine Shop

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

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