Multi-Disciplinary Senior Design Biomedical Systems and Technologies

1. Multi-Disciplinary Senior Design Biomedical Systems and Technologies P13027- Portable Emergency Ventilator Spring 2013-Fall 2013

2. Meet Our Team: Megan O’Connell (ME) –Team Lead Paulina Klimkiewicz (ME) Steven DiGerardo (ME) Jake Leone (ME) David Herdzik (EE) Matthew Burkell (EE) And our Helping Hands: Jeff Gutterman -Customer Dr. Roman Press -Customer Professor Ed Hanzlik- Advisor Mary Murphy- Product Consultant

3. Project Introduction Goal: Design and create a Mechanical Ventilator, which improves upon the design and technology implemented within: 1. MediResp III – As created by Jeff Gutterman and Dr. Roman Press 2. MediResp IV- As created by Multi-Disciplinary Senior Design team P13026 Device needs to maintain Food and Drug Administration (FDA) functional equivalency as outlined in FDA 510(k).

4. Mechanical Ventilator Background • Provide Positive Air Flow Respiration to the Patient in Emergency Situation • Maintain Oxygen Supply to Patient • Function over four modes • Constant Mandatory Ventilation (CMV) • Assist • Manual • Cardiopulmonary resuscitation (CPR) • Eliminates Mouth to Mouth Contact during CPR

5. Initial Condition • Outdated technologies • Poor Portability- Large and Heavy • Short Battery Life • Confusing Displays • Inefficient controls and operation MediResp III • Poor Portability and Ergonomics • Small Display • Confusing Control Operation • Lack of User Feedback • Non-functioning Assist and CPR Mode MediResp IV

6. Proposed Redesign- From Final Design Review Update from P13026: • Battery Size-> Reduce Size & keep same capacity • Reduce Circuit Board size-> Create custom board for all electrical connections • Improve Display Ergonomics • Reduce Size and Weight of PEV Additions: • Visual Animated Display-> Moving Vitals • Memory capabilities • USB Extraction of Data • Mechanical Overload Condition due to Electrical Malfunction • Instruction Manual

7. Engineering Specifications

8. Our High Level DesignHow we achieved our Proposed Design1. New Breath Delivery Unit - New Sensor Utilization

9. 2. Custom Printed Circuit Board - New Battery Charging Circuit - Closed Loop Control - Integrated Sensor with RC Circuit for Flow Dampening - Improved Processor Capabilities

10. 3. Improved Enclosure and Usability - Smaller Enclosure - Light weight Design - Larger Display - Functional Portability - Efficient Controls

11. Custom Enclosure

12. What was Achieved?

13. S3- Volume Flow Rate Mapping Mark: 15-60 L/min Achieved: 12-32 L/min

14. S3,S4- Operating Range

15. S4- Pressure Sensitivity Monitoring Mark: 0.5 ± 0.5 cm of H20 Achieved: 0.65 cm of water of Accuracy 0.1 cm of water Sensitivity

16. S8- Battery Life (Full System) Average Battery Life = 4 hr 20 minutes Mark: 2.0 hours Achieved: 4.3 hours

17. S12- External Relief Valve Mark: Relieve at 1.0 psi Achieved: Relieves at 1.0 psi for lower flow rates

18. S14- Weight Reduction Mark: Less than 18 lbs Achieved: 9.5 lbs

19. Improvements from Imagine RIT Usability Study Decreased Size 2. Increased Display Screen Size 3. Improved Portability Ergonomics 4. Improved Display Understanding 5. Improved Clarity of Knob Range

20. Project Challenges: • Diaphragm Pump Dampening • Pressure Sensitivity for Assist Mode • Electrical Component Troubleshooting • Minimizing Size, Maximizing Usability • Minimizing Weight, Maximizing Performance

21. Future Improvements: • New Design of PCB to impliment memory capabilities, new battery charging circuit, minor improvements • Upgrade to Parker Double-Headed 62LPM Diaphragm Pump to reach upper flow rate range • Understand Pressure Feedback during CPR Mode • Redesign of Mechanical Relief Valve to Relieve High Flow Rate Volume • Integrate Pulse Oximeter Programming to Sense and Extract Data (Measure Oxygen Levels) • Integrate USB Data Extraction • Integrate CO2 Sensing Capabilities • Incorporate permanent mounts for durability testing

22. Budget Proposed Budget $1000

23. Thank You, Any Questions?