1. 14026 week 11 Demo Mike Allocco Soham Chakraborty Leslie Havens
Danielle Koch
Andrew Miller
Kristeen Yee
Stephanie Zambito
Kris

2. Agenda Team Status The Testing System The MediResp V Database
Elevator Speech
Set Expectations
Kris

3. Team Status
Kris

4. Team Status
Kris

5. The Testing System

6. The Tester Length = 5 ¾” Length = 4” Length = 7 ½” Length = 10 ¾”
Andrew
Length = 70”
Length = 7”
Length = 7 ½”
Length = 1 ½”

7. The Tester Length = 1” Length = 3 ¾” Length = 1 ¾” Length = 4 ¼”
Andrew
Length = 1 15/16”

8. Summary of Airway Resistance Validation Testing
Andrew

9. Pressure Reading Accuracy
Testing the pressure sensors with a manometer
gave a pressure to voltage relationship.
Currently there is a large difference in calibration
between the two sensors
Mike

10. Leak Test/Mass Leak Test Configuration 3
Used dish soap method on the final assembly
No leaks were found
Set-up and testing videos can be found on the team’s Edge site
Mass including mounting= 2.995kg
Leslie

11. Problem Tracking
Depending on problem

12. The Mediresp V

13. PEV VS Testing SYSTEM ACCURACY
Test ID
Time (sec)
Maximum Flow Rate (LPM)
PEV Display (LPM)
PEV Volume
% Error 1
10.22
11.6 12
380 3% 2
10.21
13.5 15
11% 3
10.23 17 18 6% 4 20 21 5% 5
11.3 6 7
16.8 19
13%
Kris

14. Human analogue - PEV Breath Rate: Tidal Volume:
~ bpm for infants
~ bpm for adults
Tidal Volume:
Can be expressed as for infants: 18.1 mL/kg for healthy adults: (0.0275* Age[y] *Height[cm] ) L for obese adults: (0.0277* Age [y] *Height[cm] ) L for restrictive diseases (volumes normal, flow rates impeded): (from ) * (normal tidal volume) L for obstructive diseases (volumes are decreased): (0.8 – 1.0) * (normal tidal volume) L MILLER, WAYNE C.; SWENSEN, THOMAS; WALLACE, JANET P. (February 1998). "Derivation of prediction equations for RV in overweight men and women". Medicine & Science in Sports & Exercise 30 (2): 322–327.
Danielle

15. Human analogue - tester
Airway Resistance:
Poiseuille’s Law of Resistance R ~= 1/r4 where r is the radius of trachea
For neonates: 19.2± L/s
For adults: cmH2O/L/s
Compliance:
For neonate: 0.5 to 2.0 mL/cm H2O
For adults: ~ 0.1 L/cmH20
Danielle

16. S tESTS 1-5 (of 9) Breath Rate Inspiration Time Rise Time Tidal Volume
Inhale:Exhale Ratio
Danielle

17. BREAKING DOWN WAVEFORM
Breath Rate:
1 breath in 2.02 sec
29.7 bpm
Rise Time
0.50 sec
Insp. Time
1.00 sec
Pause
1.04 sec
Inhale:Exhale
= Insp. Time/Pause
0.96:1 (I:E)
Tidal Volume
0.72 L
Rise Time
Danielle
Inspiratory Time
Pause
At nominal Q=12 Lpm, V=700 mL

18. Pressure Provided/Mass
Pressure Provided by the PEV
We are reading negative pressures before the orifice plate and positive pressure after
Mass of PEV
Our results = kg
Team 13027’s Result = 4.2 kg
Leslie

19. PEV-Human Connection Performed a leak test using dish soap.
No bubbles, so no leak
Assumed the mask against the patient's face was secure, since it is a mask for medical purposes.
Leslie

20. Open Items Extrinsic Peak End-Expiratory Pressure Mean Airway Pressure
Intrinsic peak End-expiratory Pressure
Danielle

21. Template for Database - Summary
Kris

22. Template for Database - Summary
Kris

23. Template for Database - Data
Kris

24. Elevator Speech
A portable emergency ventilator provides air to a person who is incapable of breathing on his or her own. Two previous senior design teams developed the latest versions of the MEDIRESP which is a unique ventilator that has a CPR mode. Before the MEDIRESP can go to market it must be tested. Our team’s project is to characterize the capabilities of the latest MEDIRESP design. Our system models the human respiratory system in order to collect flow, pressure, and volume data during different MEDIRESP settings. From this information we can determine if the MEDIRESP would be successful in an emergency setting.
Steph

25. Team Vision Weeks 12-14
At the end of MSD II phase 5 the team will have a demonstration of our project’s progress. Our expectations for our demonstration are:
Complete all S test plans.
Be able to show the customer our test results for tests all S tests.
Be prepared to describe how we tested each requirement.
Be prepared to show how we tested each requirement.
Prepare and run our Imagine RIT exhibit.
See Imagine RIT Vision for more details.
Complete project technical paper.
Complete project poster.
Submit application for poster contest by May 4.
Kris

26. Go to Gemba!

27. Go to Gemba

28. Questions?