Toy Retriever

1
Toy Retriever

• Venkat Ramshesh
• Punita Christopher
• Department of Biomedical Engineering
• University of North Carolina, Chapel Hill

2
Outline

• Our client
• Our clients needs and project objectives
• Current Technologies
• Components of the toy retriever
• How does the toy retriever work?
• Budget
• Future work

3
Our Client

• Our client is a 2 year old boy with spinal cord
  
• injury
• He has normal cognition and is mobile in his
• wheelchair
• Clients manual
• wheelchair

4
Clients Needs and Project Objectives

• His NEED is to get books and toys off the floor
  when he is on his wheelchair so that he can play
  with them
• PROJECT OBJECTIVES
• To design a toy retriever for the client that
  would
• fetch toys, books and place them within his
  reach
• It has to be mounted on his manual wheelchair

5
Current Technologies

• Grabbers and Reachers
• Limitations
• Require strong grip
• Difficulty in picking up flat objects

6
Components of the Toy Retriever

• Scooper and blocker unit
• Telescoping device powered by motor
• Power Supply unit
• Rechargeable battery
• Circuit to control the lowering
• and raising of the scooper
• User interface 2 switches

TELESCOPING ANTENNA
SCOOPER
TOY
BLOCKER
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How the toy retriever works.

• Client positions wheelchair so that the toy
  would
• fall between the scooper and the blocker
• Client lowers the scooper by pressing switch 1
• On wheeling forward
• the scooper scoops up
• the toy
• Client raises the device
• by pressing switch 2
• Client picks up toy from
• scooper

TELESCOPING ANTENNA
SCOOPER
TOY
BLOCKER
8

Budget

• Scooper and blocker unit 150
• Motor with antenna 40
• Battery 14
• Re-charger 70
• Miscellaneous 56
• Net Cost 330

9

Future Work

• Attaching the box to the wheelchair
• Making the device more attractive for the child

10
Acknowledgements

• Richard Goldberg
• Kevin Caves
• Client and family
• Lilie Bonzani
• Physics shop
• Alexei Kambalov
• Swaroop Singh
• Janet Sturm

11
Questions/Comments?

• EMAIL
• venkat_at_email.unc.edu
• pchris_at_unc.edu