PowerPoint Presentation

Multi-Disciplinary Senior Design Biomedical Systems and Technologies

P13027- Portable Emergency Ventilator Spring 2013-Fall 2013

Meet Our Team:

Megan OConnell (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 -CustomerProfessor Ed Hanzlik- Advisor

Mary Murphy- Product ConsultantProject IntroductionGoal: 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).Mechanical Ventilator Background

Provide Positive Air Flow Respiration to the Patient in Emergency SituationMaintain Oxygen Supply to PatientFunction over four modes Constant Mandatory Ventilation (CMV)AssistManualCardiopulmonary resuscitation (CPR)Eliminates Mouth to Mouth Contact during CPRInitial ConditionOutdated technologiesPoor Portability- Large and HeavyShort Battery LifeConfusing DisplaysInefficient controls and operationPoor Portability and ErgonomicsSmall DisplayConfusing Control OperationLack of User FeedbackNon-functioning Assist and CPR ModeMediResp IIIMediResp IVProposed Redesign- From Final Design ReviewUpdate from P13026:Battery Size-> Reduce Size & keep same capacityReduce Circuit Board size-> Create custom board for all electrical connectionsImprove Display ErgonomicsReduce Size and Weight of PEV

Additions:Visual Animated Display-> Moving VitalsMemory capabilitiesUSB Extraction of DataMechanical Overload Condition due to Electrical MalfunctionInstruction ManualEngineering Specifications

Our High Level DesignHow we achieved our Proposed Design

1. New Breath Delivery Unit - New Sensor Utilization

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

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

Custom Enclosure

What was Achieved?

S3- Volume Flow Rate Mapping

Mark: 15-60 L/min

Achieved: 12-32 L/minS3,S4- Operating Range

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

S8- Battery Life (Full System)Average Battery Life = 4 hr 20 minutesMark: 2.0 hours Achieved: 4.3 hoursS12- External Relief Valve

Mark: Relieve at 1.0 psi Achieved: Relieves at 1.0 psi for lower flow ratesS14- Weight ReductionMark: Less than 18 lbs

Achieved: 9.5 lbs

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

Project Challenges:Diaphragm Pump DampeningPressure Sensitivity for Assist ModeElectrical Component TroubleshootingMinimizing Size, Maximizing UsabilityMinimizing Weight, Maximizing Performance

Future Improvements:New Design of PCB to impliment memory capabilities, new battery charging circuit, minor improvementsUpgrade to Parker Double-Headed 62LPM Diaphragm Pump to reach upper flow rate rangeUnderstand Pressure Feedback during CPR ModeRedesign of Mechanical Relief Valve to Relieve High Flow Rate VolumeIntegrate Pulse Oximeter Programming to Sense and Extract Data (Measure Oxygen Levels)Integrate USB Data ExtractionIntegrate CO2 Sensing CapabilitiesIncorporate permanent mounts for durability testing

Budget Proposed Budget $1000Electrical (LCD, PCB and components)$291.94Sensors$27.86Battery + Charger$70.98Pump$297.00Enclosure$2.53Knobs and Buttons$83.89Mechanical Components$142.72Total Production Cost$833.03Development Cost$1434.99Thank You, Any Questions?