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Supplemental O2 Respiration Device

Supplemental O2 Respiration Device. Team members Advisor Jarrod long dr. Dorin BOLDOR Melissa wason Jim presley Shreya purohit. Sponsors. Mr. Schwartz

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Supplemental O2 Respiration Device

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  1. Supplemental O2 Respiration Device Team members Advisor Jarrod long dr. Dorin BOLDOR Melissa wason Jim presley Shreyapurohit

  2. Sponsors • Mr. Schwartz ( Superior Offshore International) • Mr. Ed Collins • Louisiana State University College of Agriculture

  3. Overview • Problem statement • Background • Design • Testing • Conclusion

  4. Problem Statement • To design a single use, portable oxygen dispenser that releases oxygen for 5 minutes at 6 liters/min

  5. Background Information

  6. Design • Cylinder • Regulator • Retention Bag • Mask • Case

  7. Cylinder • Cylinder & Retaining Valve • Manufacturer: Cliff Impact Division of Catalina Cylinders • Light weight, aluminum high pressure gas cylinder • Contains 42 liters of compressed oxygen gas at max pressure of 2000 psi • Cylinder specifications: • 2.5 inch diameter, 5.5 inch height, weighs 0.5 lbs

  8. Cylinder • Custom fit brass retaining valve • Manufactured by InterMed Gas Products Corporation • Model: CGA 870 (oxygen grade) • 1 inch diameter, 3.5 inch height, weighs 1.75 lbs

  9. Regulator • Brass-Sleeved 50 psi oxygen regulator • Manufactured by Inter Med Gas Products Corporation • Model: CGA 870, variable flow: 0-8 L/min • 1.5 inch diameter, 3.5 inch length

  10. Retention Bag • Clear, inflatable plastic bag (oxygen grade) • 8 inch height x 4 inch width (flat/no air) • Direct Inflow from oxygen cylinder • One-way valve exit to mask • Connections: oxygen grade, clear, flexible, plastic tubing

  11. Mask • Clear, flexible plastic • Adjustable aluminum nose piece • Fit with 2 custom one-way valves • Valve Functions: • Creates vacuum upon inhalation (opens one-way valve on retention bag) • Allows entrance through oxygen tube • Allows escape of CO2 during exhalation

  12. Case • Light weight aluminum: prototype • Future: plastic • Main function: • Ergonomics and aesthetics • Easily portable: shoulder straps, compact case • Contains vital parts to design, prevents loosening of connections

  13. Case • Other functions: • Prevent direct contact of cylinder, valve, or regulator with ground upon impact. • Increases safety of using the device

  14. Regulator One-Way Valve Case Retention Bag Mask Cylinder One Way Valves Completed Design

  15. Testing • Sensor Calibration • Respiration • Retention Bag • Valves • Flow Rate as Pressure Changes

  16. Percent Oxygen Inside Mask • Objective • 50-70% Oxygen • Oxygen Sensor • Pasco Industries • PasPort Interface • Data Studio • Oxygen specific • 0 – 100% O2 • Precision of ± 1% • Resolution of 0.024%.

  17. Oxygen vs. Atmospheric Air • Objective: prove oxygen sensor accuracy and % oxygen content in cylinder

  18. Respiration:Oxygen vs. Atmospheric Air • Objective: • Determine if oxygen reaches mask • Determine percent oxygen available to user • Hypothesis Testing • % oxygen from cylinder > % oxygen in air • 30 to 40% is lower than our ideal % oxygen

  19. Alterations • Valves • Bag

  20. With Retention Bag vs. Without Retention Bag • Objective: determine whether or not the retention bag increased the percentage of oxygen available

  21. Retention Bag on Mask vs. in Case • Objective: determine whether or not placing the bag inside the case decreased the percentage of oxygen available • Hypothesis Testing • Slight Difference • Acceptable for aesthetic reasons

  22. Valves • Objective: determine best valve configuration

  23. Flow Rate as Pressure Changes • Objective: Flow Rate must stay consistent – 6 L/min • Dependency of % O2 consumption rates • Concerns: • Initial pressure = 2000 psi • Final pressure = 0 psi • Flow Meter • Dwyer Instruments • Oxygen flow meter • Scale: 1.0-10 LPM

  24. Flow Meter Results • Objective: to determine if the regulator produces the required 6 L/min flow rate for 5 minutes

  25. Conclusion

  26. Questions? ?

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