NEONATAL AND PAEDIATRIC LUNG SIMULATOR
Zulkifly Abdullah
Malaysia
Mechanical Engineering
Anna Basiuras
Poland
Biomedical Engineering
Alexandra Duman
Romania
Industrial Design
SUPERVISORS: Marta Díaz- Universitat Politècnica de Catalunya
Pedro Brotons- Hospital pediàtric Sant Joan de Dèu
EPS-IDPS 2014
Laura Viscarri
Spain
Industrial Design
TABLE OF CONTENTS
1
Introduction
2
- System description
- Users
- Current devices
- Description of Lung simulator
- Goals of the project
4
Conclusions
Research
5
Further work
3
Concept
-
Design
Use
Elements
Mechanism
Functions
Materials
Interface
Prototype testing
Market comparison
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DEFINITION OF LUNG SIMULATOR
A device used to simulate the behaviour of the respiratory system in order to
check ventilator’s capabilities through the adjustment of four parameters.
FUNCTION
PARAMETERS
Scenario to simulate
INTRODUCTION
RESEARCH
CONCEPT
CONCLUSION
FURTHER WK.
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GOALS OF THE PROJECT
REMOTELY CONTROLLED
LUNG
SIMULATOR
EASY CONSTRUCTION
PORTABLE
INTRODUCTION
RESEARCH
TWO LUNG SIZES
CONCEPT
DIFFERENT MEDICAL SCENARIOS
ACCURATE ADJUSTMENT
CONCLUSION
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SYSTEM DESCRIPTION
BODY (MANNEQUIN)
DISPLAY
INTERFACE
CONTROL
INTERFACE
LUNG
SIMULATOR
VENTILATOR
- Flow rate
- Spontaneous breathing
- Pressure
- Volume of air
- Real time monitoring
of respiration curves
- Resistance of airways
- Leaks of air
- Compliance (lung elasticity)
REMOTE/ MANUAL
CONTROL OF LUNG
PARAMETERS
INTRODUCTION
RESEARCH
CONCEPT
CONCLUSION
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USERS
Control the lung simulator
PROFESSORS
STUDENTS
Generate real clinical scenarios
Evaluate the students
Develop practical and analytical skills
Learn how to interact with a ventilator
DOCTORS AND
RESEARCHERS
Identify different diseases
Adjust parameters of real diseases
Compare data from different medical scenarios
Transport the simulator to different places
INTRODUCTION
RESEARCH
CONCEPT
CONCLUSION
FURTHER WK.
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CURRENT DEVICES
LUNG SIMULATORS
VENTILATOR: SERVO-I
Smart Lung
-
INTRODUCTION
Their own
Resistors adjustment
Compliance mechanism
No spontaneous breathing
Manually controlled
RESEARCH
CONCEPT
CONCLUSION
- Flow rate
- Pressure
- Real time monitoring of respiration
curves
- Volume of air
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DESIGN
LOW WEIGHT
Ventilator connection
REMOTELY CONTROLLED
INTRODUCTION
RESEARCH
CONCEPT
CONCLUSION
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DESIGN
COMPACTNESS
WIRELESS
USB PORT
INTRODUCTION
RESEARCH
CONCEPT
CONCLUSION
BATTERY INFORMATION
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DESIGN
PAEDIATRIC BAG
NEONATAL BAG
125-250 mL
TWO LUNG SIZES
25-50 mL
EASY ASSEMBLY
INTRODUCTION
RESEARCH
CONCEPT
CONCLUSION
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USE
Air source
Spontaneous breathing
connection
Ventilator connection
INTRODUCTION
RESEARCH
CONCEPT
CONCLUSION
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ELEMENTS
COMPLIANCE
BAND
PNEUMATIC
CYLINDER
BAG
TUBE
BRAKET
LEAKS RING
RIGID
STRUCTURE
RESISTANCE
WHEEL
CASE
CAP
INTRODUCTION
RESEARCH
CONCEPT
CONCLUSION
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MECHANISM
LEAKS RING
GENEVA WHEEL
COMPLIANCE BAND
RESISTANCE MOTOR
PROPORTIONAL VALVE
CYLINDER
GEARS
LEAKS COMPLIANCE PULLEY
MOTOR
MOTOR
INTRODUCTION
RESEARCH
CONCEPT
CONCLUSION
FURTHER WK.
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FUNCTIONS
SPONTANEOUS BREATHING
25 mm
Air source connection
REQUIREMENTS FOR THE FUNCTIONING
Bag subjection
SOLUTION
- Increase the bag volume 10 mL
10 mm up of bag displacement
- Generate the spontaneous breathing during 2 min.
Programming
- Adjustment of the breathing rate 10-70 respirations/min
Sensors+ proportional valve
INTRODUCTION
RESEARCH
CONCEPT
CONCLUSION
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FUNCTIONS
SPONTANEOUS BREATHING
THE SYSTEM
Career
Stroke
diameter
Pneumatic
connection
Pneumatic
connection
Flow rate
Voltage
Functioning
pressure
Drive
INTRODUCTION
AIR SOURCE
40 mm
16 mm
CYLINDER
M5
M5
PROPORTIONAL
VALVE
100-2000
l/min
17…30 V DC
0…10 bar
Electrical
RESEARCH
CONCEPT
CONCLUSION
FURTHER WK.
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FUNCTIONS
REQUIREMENTS FOR THE FUNCTIONING
COMPLIANCE
Grooves
Adjust the compliance in 1,2,3,5 mL/mbar
THE SYSTEM
Base grooves
Holding point of the band
INTRODUCTION
RESEARCH
CONCEPT
CONCLUSION
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FUNCTIONS
LEAKS
REQUIREMENTS FOR THE FUNCTIONING
3 options of leakage: big leaks, small leaks, no leak
α = 20°
z1 = 16
z2 = 16
d1 = 28mm
d2 = 28mm
5 mm
10 mm
INTRODUCTION
RESEARCH
CONCEPT
CONCLUSION
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FUNCTIONS
AIRWAYS RESISTANCE
REQUIREMENTS FOR THE FUNCTIONING
SOLUTION
Changing of the resistance in 5, 20, 50, 100 mbar/l/s
Diameter values: 8, 6, 4, 2 mm.
Base
Drive wheel
Driven wheel
INTRODUCTION
RESEARCH
CONCEPT
CONCLUSION
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MATERIALS
COMPONENT
MATERIAL
MANUFACTURING PROCESS
Case
PC with 10% glass fibre
INJECTION MOULDING
Cap
Rigid structure
Bags
Tube
Bracket
PC with 30% glass fibre and 5% silicone
HDPE
Silicone rubber+ HDPE
PVC with 20% glass fibre
HDPE
INJECTION MOULDING
EXTRUSION + MACHINING
INJECTION MOULDING
EXTRUSION + MACHINING
EXTRUSION
Cylinder surface
Geneva wheel
ABS
ABS (medium impact)
EXTRUSION + MACHINING
INJECTION MOULDING + MACHINING
Leaks ring
ABS (medium impact)
INJECTION MOULDING + MACHINING
Gear
Band
Pulley
Motor subjections
ABS (medium impact)
PA with 15% glass fibre
PEEK
HDPE
INJECTION MOULDING
EXTRUSION
INJECTION MOULDING
EXTRUSION
INTRODUCTION
RESEARCH
CONCEPT
CONCLUSION
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STRESS ANALYSIS
TESTING OF THE RESISTANCE OF THE RIGID STRUCTURE
Applied strength: 13 N
Material: High Density Polyethylene (HDPE)
Young’s Modulus: E = 1000MPa
Poisson’s Ratio: ν = 0.4
INTRODUCTION
RESEARCH
CONCEPT
CONCLUSION
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INTERFACE
Simulator battery info
Exit icon
Selection of the resistance
Selection of the leaks
Selection of the compliance
Activation and adjustment of
the spontaneous breathing
INTRODUCTION
RESEARCH
CONCEPT
CONCLUSION
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PROTOTYPE TESTING
INTRODUCTION
RESEARCH
CONCEPT
CONCLUSION
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COMPARISON WITH OTHER SIMULATORS
TL2 PRO TEST
LUNG
INGMAR MED
SMARTLUNG
SUMLUNG
0.4 Kg
€ 250
7 Kg
€ 1950
0.3 Kg
€ 620
1.7 Kg
€ 1580
Compliance adjustment
Leak adjustment
Resistance adjustment
Spontaneous breathing
generation
Remote control of the
parameters
Leaks
Weight
Price
INTRODUCTION
RESEARCH
CONCEPT
CONCLUSION
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CONCLUSIONS
DESIGN
RESEARCH
- Stakeholder’s needs
- Main diseases to consider
- Analysis of the market
INTRODUCTION
RESEARCH
TEST
- Portable device
- Easy to assemble
- Better learning experience
- Control of all the parameters
CONCEPT
CONCLUSION
REDESIGN
One parameter
functioning tested
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FURTHER WORK
To develop a more complete prototype to test all the parameters.
To design a case to carry the simulator.
To develop the electronics to control all the elements.
To develop an interactive interface prototype.
Make usability tests using the whole product in a real scenario.
INTRODUCTION
RESEARCH
CONCEPT
CONCLUSION
FURTHER WK.
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THANK YOU FOR YOUR ATTENTION!
EPS-IDPS 2014