team 14026: subsystem design review
DESCRIPTION
Team 14026: Subsystem Design Review. Mike Allocco, Soham Chakraborty, Leslie Havens, Danielle Koch, Andrew Miller, Kristeen Yee, Stephanie Zambito. Agenda. Week 6 Matrix Week 6 Functional Decomposition New Functional Decomposition Week 6 Proposal Week 6 System Designs - PowerPoint PPT PresentationTRANSCRIPT
Mike Al locco, Soham Chakraborty, Lesl ie Havens, Daniel le Koch, Andrew Mi l ler , Kr isteen Yee, Stephanie Zambito
TEAM 14026: SUBSYSTEM DESIGN
REVIEW
P14026_Subsystem Review 10/29/13
Week 6 Matr ix Week 6 Funct ional Decomposit ion New Funct ional Decomposi t ion Week 6 Proposal Week 6 System Designs Pugh Chart for Systems Model ing Lung Decomposi t ion Model ing Lung Pugh Chart Proposal Number 1
Bill of Materials-High Level Simulations of Breaths and Compressions Measurements – Pressure, Airflow, Oxygen Concentration Computer Interface and Power Programming Flow Charts Overall BOM
Proposal Number 2 Team Act ion Items
Week 6 Test Plan New Test Plan New Risks Schedule Next Steps
AGENDAP14026_Subsystem Review 10/29/13
WEEK 6 MATRIXP14026_Subsystem Review 10/29/13
WEEK 6 FUNCTIONAL DECOMPOSITION
P14026_Subsystem Review 10/29/13
NEW FUNCTIONAL DECOMPOSITIONP14026_Subsystem Review 10/29/13
WEEK 6 PROCESS PROPOSALP14026_Subsystem Review 10/29/13
WEEK 6 FUNCTIONAL SYSTEM DESIGNSTesting
Calibration
P14026_Subsystem Review 10/29/13
SYSTEM PUGHP14026_Subsystem Review 10/29/13
MODEL LUNG DECOMPOSITION
Respond as a real human lung would
Intake air flow Model human lung response to inputs Expel air
Receive air from PEV
Measure intake from
sensors
Timing (clock)
Pressure
SensorVolume sensor
Air flow sensor
Adjustable air
resistance
Adjustable lung
compliance
Feedback to PEV
P14026_Subsystem Review 10/29/13
SIMULATED LUNG PUGH CHARTP14026_Subsystem Review 10/29/13
SUBSYSTEM PROPOSAL 1
P14026_Subsystem Review 10/29/13
HIGH LEVEL BILL OF MATERIALSP14026_Subsystem Review 10/29/13
HIGH LEVEL BILL OF MATERIALSP14026_Subsystem Review 10/29/13
BILL OF MATERIALSP14026_Subsystem Review 10/29/13
CONTROL VOLUME
MODEL LUNG PROPOSAL
LOWER Bound (ml/kg)
UPPER Bound(ml/kg)
4 8
Bill of Materials1 Adult Test Bag $35.001 Neonatal Test Bag $101.43
But the PEV will not be directly inflating a lung…
P14026_Subsystem Review 10/29/13
AIRWAY RESISTANCE
MODEL LUNG PROPOSAL
LOWER Bound
(cmH2O/L*s)
UPPER Bound
(cmH2O/L*s)
6 25
Bill of Materials1 Adult Test Bag $35.001 Neonatal Test Bag $101.4310 ft. Tubing $19.00
P14026_Subsystem Review 10/29/13
PRESSURE APPLICATION
MODEL LUNG PROPOSAL
LOWER Bound
(cmH2O)
UPPER Bound
(cmH2O)1025.07 1034.59
Bill of Materials1 Adult Test Bag $35.001 Neonatal Test Bag $101.4310 ft. Tubing $19.006.6 m^2 Glass $54.001 3L Syringe Pump $110.00
P14026_Subsystem Review 10/29/13
COMPLIANCE CURVE 1. Boyle’s Law: 2. For most materials: 3. For the lung:
MODEL LUNG PROPOSAL
Bill of Materials1 Adult Test Bag $35.001 Neonatal Test Bag $101.4310 ft. Tubing $19.006.6 m^2 Glass $54.001 3L Syringe Pump $110.00
1 2 3
P14026_Subsystem Review 10/29/13
NUMERICAL INTEGRATION Several possible algorithmsto be selected based on:
-Acceptable Error-Speed of Sensors
MODEL LUNG PROPOSAL
Bill of Materials1 Adult Test Bag $35.001 Neonatal Test Bag $101.4310 ft. Tubing $19.006.6 m^2 Glass $54.001 3L Syringe Pump $110.00
P14026_Subsystem Review 10/29/13
ACTUTATION Actuated syringe pump correctspressure to fit the calculatedcompliance curve
MODEL LUNG PROPOSAL
Bill of Materials1 Adult Test Bag $35.001 Neonatal Test Bag $101.4310 ft. Tubing $19.006.6 m^2 Glass $54.001 3L Syringe Pump $110.001 Linear Step-Motor $50.00TOTAL (w/o sensors) $369.43
P14026_Subsystem Review 10/29/13
Need to be able to trigger assist mode on the PEV Create Negative Pressure
Possible designs: EMT Hand Pump Syringe Pump Turkey Baster
SIMULATED BREATH DESIGNS P14026_Subsystem Review 10/29/13
Syringe PumpProof of Concept
Creating Negative Pressure
Creating controlled motion
SIMULATED BREATH PROPOSAL
No to little air
Pull handle out
Air is pulled in
Wheel & Motor Arm
P14026_Subsystem Review 10/29/13
Need to release air, the PEV is measuring compressions based on pressure
Possible designs: EMT Hand Pump Syringe Pump Turkey Baster
SIMULATED COMPRESSIONS DESIGNS
P14026_Subsystem Review 10/29/13
Syringe PumpProof of Concept
When doing compressions, air is pushed out of the body
SIMULATED COMPRESSIONS DESIGNS
Air is in the syringe
Air is pushed out
P14026_Subsystem Review 10/29/13
Pressure Transducer Sensor Technics
Operating range: varies from 0-10,25,70,100 mbar (1mbar~1.01cmH2O) Accuracy: ±.20% Full Scale 17 connection variations and 5 output signal variations Max Response time:
≤25 mbar – 35ms ≥25 mbar – 5ms
Dwyer Operating Range: 0-1 psi ±.25% Full Scale 5ms Response time $149.00 each
Differential Pressure Transducer Cole-Parmer
Operating Range- 0-100” H20 Accuracy- ±1% Full Scale (1 inH20) $172.00
MEASURING PRESSUREP14026_Subsystem Review 10/29/13
MEASURING PRESSURE SUMMARYP14026_Subsystem Review 10/29/13
MEASURING AIR FLOW & VOLUME
Q = A * VW = *Q
Measuring Air VolumeVolume = Compliance*[Pressure – Flow*Resistance]Boyle’s Law: As volume of gas increases; pressure
decreases
P14026_Subsystem Review 10/29/13
Total Atmospheric Air Pressure: 1033.23 cmH20 21% is oxygen concentration
Vernier O2 Gas Sensor Cost: $188 Accuracy (at standard pressure 760 mmHg): +/- 1% volume
O2 Response time: ~12 seconds to 90% of final value http://www.vernier.com/files/manuals/o2-bta.pdf
MEASURING OXYGEN CONCENTRATION
P14026_Subsystem Review 10/29/13
HIGH LEVEL BILL OF MATERIALSP14026_Subsystem Review 10/29/13
COMPUTER INTERFACE & POWER SOURCE SUBASSEMBLIES
P14026_Subsystem Review 10/29/13
EMANT300 LOW COST USB 24 DAQ MODULE
Up to 6 channels of differential multiplexed ADC
Single channel 22 bit @ 10 samples/sec
Single channel 16 bit waveform @ 2500 samples/sec
1 channel of 8-bit D/A conversion 8 digital IO channels One 16-bit general-purpose counter
or 16-bit PWM USB connection 25 pin D-Sub connects to physical
world Application adaptors with
instructional guides LabView compatible Cost = $99.00 http://www.emant.com/251004.page
P14026_Subsystem Review 10/29/13
PROGRAMMING FLOW CHART
Automatic Mode
P14026_Subsystem Review 10/29/13
PROGRAMMING FLOW CHART
Assist Mode
P14026_Subsystem Review 10/29/13
PROGRAMMING FLOW CHART
CPR Mode
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PROGRAMMING FLOW CHART
Manual Mode
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ESTIMATED COSTS WITHOUT SHIPPING
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SUBSYSTEM PROPOSAL 2
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Siemens Test Lung 190: $222.00 – amazon.com Adult Volume of 1 Liter Non-adjustable compliance and resistance
IMT Easy Lung: Non-adjustable compliance and resistance $172 Adult
Newport Medical Neonatal $101.43 Non adjustable resistance Non adjustable compliance (0.8 mL/cmH20) Capacity up to 60 mL Can simulate breathing effort.
TEST LUNGSP14026_Subsystem Review 10/29/13
IMT Smart Lung Widely adjustable compliance, resistance, and leakage. Adult and Infant models (sold separately). $654.88 (each) Price to Performance ratio is best on the market.
TEST LUNGS CONTINUEDP14026_Subsystem Review 10/29/13
TEAM ACTION ITEMS
P14026_Subsystem Review 10/29/13
WEEK 6 TEST PLAN
Test Mass Flow Sensor Verify accuracy of the data
Test Pressure Sensor Verify accuracy of the data
Test Lung Simulation Verify lung operations
Test Calibration Verify accuracy of testing system
P14026_Subsystem Review 10/29/13
LTV Series 900 A PEV that tests itself Can be calibrated Measures air flow Measures PEEP Measures pressure Measures breaths per minute Has an assist mode Has a low battery alarm Can set the level in which alarms are set off Tubes need to be replaced – currently a number of holes
NEW TEST PLANP14026_Subsystem Review 10/29/13
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LTV 900P14026_Subsystem Review 10/29/13
NEW RISKS IDENTIFIEDP14026_Subsystem Review 10/29/13
SCHEDULEP14026_Subsystem Review 10/29/13
Meeting with Professors Dr. Wellin Dr. Kempski Mr. Hanzlik Dr. Robinson Dr. Slack Dr. Lamkin-Kennard
Contact customer support for LTV about data acquisition
Detailed Engineering Analysis of subsystem proposal chosen by our customers.
NEXT STEPSP14026_Subsystem Review 10/29/13
QUESTIONS?
P14026_Subsystem Review 10/29/13
BACKUP SLIDES
P14026_Subsystem Review 10/29/13
Andrew – Choosing sensors, flow analysis, sensor integration
Danielle – Flow analysis, methods of fabricationKris – Project planning, calibrate LTV, CADLeslie – Choosing sensors, sensor integrationMike – Start coding, Flow analysis, CADSoham – Choosing DAQ board, sensor integrationStephanie – Choosing DAQ board, coding
ASSIGNED RESPONSIBILITIESP14026_Subsystem Review 10/29/13