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TEAM MEMBERS: Miguel Benson, Erik Bieging, Ross Gerber, Aman Ghotra, Abdikarim Mahamud Department of Biomedical Engineering. TEAM ADVSIOR: Mitch Tyler, MS PE Department of Biomedical Engineering. TEAM CLIENT: Tom Brazelton, MD, MPH Department of Pediatrics
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Mitch Tyler, MS PE
Department of Biomedical Engineering
Tom Brazelton, MD, MPH
Department of Pediatrics
UW-Madison Hospital and Clinics
We propose a physical prototype of a gurney-compatible- child seat for transporting children in ambulances. Current seats do not recline; Emergency Medical Technicians (EMTs) must unstrap the child out of seat and remove the seat off the gurney to lay the child flat on the gurney for specific medical treatments. However, this procedure takes up valuable time (~3 minutes) and protracts the time it takes to reach the hospital. As a result, our prototype reclines, and eliminates the need to remove the seat off the gurney to lay the child flat on the gurney. Also, our prototype supports children (1-10 years old) of various anatomical features unlike current ambulatory child seats. Initial testing of four subjects (1-10 year old) have given promising results but more testing needs to be done to assess prototype’s mechanical and safety constraints. Also, we need to seek lighter yet robust material to fabricate future design of the child seat.
Develop a safe and compact child seat for transporting children (6-30 kg) in ambulances that allows Emergency Medical Technicians (EMTs) to recline the child in the seat from the sitting position to the lying position when strapped onto a stretcher.
The Child Seat:
1. Must be compatible with current stretchers;
2. Must secure a child (up to 10 year old)
-Mass: 6-30 kg
-Shoulder width:12.9-30.8 cm,
-Hip to shoulder height: 20-44 cm ;
3. Must not restrict EMT’s ability to care for the child;
4. Must be cost-efficient and user-friendly;
5. Must be collapsible;
6. Must recline from 120-180 degrees;
7. Must be easily sterilized.
Overview of Design Concept
Figure B: Prototype Model
Figure C: Prototype ModelRecline Lock Mechanism
Figure H: Prototype DesignBack Rest Track
Figure I: Design Concept
Figure J: Prototype Design
1 year old
4 year old
6 year old
10 year oldSubject Testing
Figure K: 1 year old subject in upright position
Figure L: 1 year old subject in laying position
Acknowledgements:We would like to thank Dr. Tom Brazelton and his colleagues, and Biomedical Engineering Department for providing us an opportunity to work on this project. Also, we would like to thank our advisor, Mitch Tyler, for providing us feedback and pointing us in the right direction.
 Safe Ride News. http://www.saferidenews.com/html/Spec_Amb.html
 Detroit News. http://www.detnews.com/2003/specialreport/0301/27/a11-68893.htm
 Brazelton, T. University of Wisconsin Hospital and Clinics. Interview.
 Physical Characteristics of Children. http://www.itl.nist.gov/iaui/ovrt/projects/anthrokids/child.html