1. ECMO Circuit Pressure Alarm PROJECT PROPOSAL
University of Pittsburgh
Senior Design - BioE1160
ECMO Circuit Pressure Alarm PROJECT PROPOSAL
Desiree Bonadonna
Apryle Craig
Laura Gilmour
ECMOre, Uninc.

2. Overview ECMO Pressure Alarm Pre-Oxygenator Post-Oxygenator
Post-Heat Exchanger
Audible and Visual Alarms
Make healthcare workers aware of high/low pressures
Dangers of high/low pressures

3. Overview Healthcare Workers Redesign Perfusionists ECMO Technicians
Physicians
Nurses
Redesign
Analog Digital
Programmable
Audible Alarm
Additional pressure indicator (post heat-exchanger)

4. Circuit Modification

5. Project Goals Develop digital pressure alarm system
Build model
Submission for FDA approval
Milestones
Current technology summary
Re-assess project goals
Redesign
Add programmable inputs
Add alarm
Add sound
Deliverable

6. Schedule

7. New Description: Device Circuitry
ADS7800KP

8. Design Alternatives - Decisions
Three Digit Display
One Audible Alarm
Three Visual Alarms
Dials/Knobs for Programming Range

9. Found existing similar products/competitors
Problems
Found existing similar products/competitors
Improve upon product instead of making new product
Smaller
Less Expensive
Stand alone unit
Add picture from Atlanta Children’s hospital website

10. Incompatible Transducers
Problems
Incompatible Transducers
Use transducer from Abbott Laboratories
Model used by Children’s
Difficulty Obtaining Schematic
Used existing monitor to determine readout signal

11. Current Status Met with both advisors Visited Children’s ECMO services
HFE Analysis, FMEA
Regular meeting times
Contacted other hospitals/ECMO teams
Met with Dr. Jacobs for periodic updates
SBIR rough draft complete
Calibration technique drafted
Determined Class II Device

12. Current Status-Current Monitor Design

13. Current Status-A/D Converter: Built

14. Obtained product samples
Redesign in Process
Obtained product samples
A/D converters
Bit-mapping
Understand conversions
Signal to mmHg output
Set up current system
Add programmable inputs
Add Alarm
Add Sound

15. Redesign in Process – Future Testing

16. 100% low level logic design
Deliverables
SBIR
100% low level logic design
Ideally use Digital Prototyping Lab for final product
3rd Floor Benedum

17. Acknowledgements University of Pittsburgh Department of Bioengineering
Mark Gartner
Michael Shaver
Steven Jacobs

18. Questions?