1. Biomedical Engineering Design Courses INTELLECTUAL PROPERTY STATEMENT
University of Wisconsin-Madison
Biomedical Engineering Design Courses
INTELLECTUAL PROPERTY STATEMENT
All information provided by individuals or Design Project Groups during this or subsequent presentations is the property of the researchers presenting this information. In addition, any information provided herein may include results sponsored by and provided to a member company of the Biomedical Engineering Student Design Consortium (SDC).
Anyone to whom this information is disclosed:
Agrees to use this information solely for purposes related to this review;
Agrees not to use this information for any other purpose unless given written approval in advance by the Project Group, the Client / SDC, and the Advisor;
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Continued attendance at this presentation constitutes compliance with this agreement.

2. Umbilical Vein Catheterization Training Model
Team Members: Ann Sagstetter, Kelvin Ng, Megan Britson, Fan Wu
Client: Dr Julie Kessel, Dept of Pediatrics
Advisor: Prof Brenda Ogle, Dept of BME

3. Outline of Presentation
Overall Goals of Project
Umbilical Vein Catheterization & Training
Previous & Current Work
External Support Design
Manufacturing Concerns
Future Work
References & Q&A
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4. Problem Statement
To construct a model optimized in the following ways for use in the umbilical vein catheterization training program:
firmly stabilize a fresh
umbilical cord
accurately mimic an infant’s
abdomen
easily manufactured
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5. Background Information
Cross Section of Umbilical Cord
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6. Background Information
Umbilical Vein (UV) Catheterization
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7. Background Information
UV Catheterization Training
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8. Background Information
Existing Products
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9. Background Information
In comparison to reality…
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10. Client’s Expectations
Use real, fresh umbilical cords
Design an “umbilicus” that stabilizes cord
Mimic texture of abdomen
Include a blood reservoir
Use disposable materials
Comply with manufacturing standards
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11. Previous Work
Cord-In-Gel Model
(aka Gel Model)
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12. Previous Work
Sphygmomanometer Model
(aka Cuff Model)
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13. Previous Work Testing Results Chosen model - CONFIDENTIAL -9
Chosen model 8 7 6 5
Maximum Tensile Force (N) 4 3 2 1
Cord-In-Gel Model
Sphygmomanometer Model
NRP Baby Bottle Model
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14. Previous Work Testing Results
“Appreciate ‘baby body’. Like ability to adjust pressure around cord to stabilize cord.”
“I think that the BP cuff model more realistically simulates the actual procedure. Thanks.”
- Residents from Meriter Hospital
Testing Results
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15. Current Work Cuff model is chosen Goals for this semester
satisfies tensile strength limit
more easily assembled
Goals for this semester
optimize external support for abdominal mimicry
present model to manufacturer
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16. Ideas for External Support
Artificial Skin Model
Low-Density Polymer
High-Density Polymer
Dimensions in mm.
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17. Ideas for External Support
Bean Bag Model
Bean Bag
Outer diameter = 188 mm
Inner diameter = 35 mm
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18. Ideas for External Support
Rubber Mold Model
Solid Polymer
Dimensions in mm.
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19. Design Matrix
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20. Manufacturing Requirements
Technical drawings
Testing results
Standard operating procedures
Estimated production cost
Target production quantity
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21. Future Work Experiments on External Support
identify best material for mimicking abdomen
incorporate cuff mechanism
Manufacturing Goals
contact manufacturers
conduct survey and fatigue analysis
project estimated costs
complete technical drawings
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22. References
William Ehman. “Umbilical cord model”. Canadian Family Physician, January Website:
“Baby Umbi”. Laerdal. Website:
Wikipedia. Website:
John Kattwinkel. “Textbook of Neonatal Resuscitation”. American Academy of Pediatrics, 5th edition (2006). 6(4)-6(5).
“Medical Simulation Models”. Limbs & Things USA. Website:
John Walker. “Design/Manufacturing Process”. Fourmilab Switzerland, February Website: autofile/www/section2_83_13.html
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23. Questions & Answers
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