ANGEL’S ARC Ambulance for Rescuing Children A HOPE for Honduras and RIT MSD/ID Collaboration
MEET THE TEAM Rebecca Bonamico (BME) Lead / Systems Engineer Ankha Khosbayar (ID) Designer Gage Ellis (EE) Purchasing Lead Charlee Lefkovich (ME) Project Manager Alexa Boyd (INDE) Customer Relations Austin Zuercher (BME) Communications / Facilitator
Agenda 1. Project Background 2. Problem Overview 3. Updated Customer Requirements 4. Function Breakdown 5. Equipment Selection a. Incubator b. Ventilator c. Power Systems 6. Vehicle Selection 7. Interior Design 8. Cost Breakdown 9. Project Risks 10. Future Direction
Project Background Two Tier 3 (most advanced) hospitals ● in Honduras (Tegucigalpa & San Pedro Sula) Infants and/or mothers travel to ● closest lower tier hospital, then are transported to Tier 3 location for more intensive care No specialized infrastructure exists to ● transport the infant and/or mother Neonates wait for open incubator ●
PROJECT SCOPE
PROBLEM STATEMENT In Honduras , there is currently a lack of quick, safe , and reliable transportation between hospitals for infants with serious medical conditions.
REQUESTED SOLUTION Design an emergency neonatal transport vehicle ● Transportation between hospitals ○ Must be a functional design for Honduras ● Be within a reasonable budget ○ Consider costs of build, maintenance, and repair ■ Parts for repair must be readily accessible in Honduras ○ Durable - keep repair cost low and effectiveness high ○ Easy to operate ○ Must be effective in its role ● Contain all necessary equipment ○ Provide power for all necessary systems ○
Initial Understanding of Scenario and Requirements Limitations ~4 hour journey (1 way) ● No medical personnel ● Nobody present to control/limit family members actions ● Scenario 1. Hospital calls for ambulance 2. Ambulance makes 4 hour drive to hospital 3. Picks up multiple infants and family members 4. Transports back to Hospital Escuela a. No in-transport care b. Driver has no medical training Servicing 2 hospitals (Comayagua and 5. Ambulance arrives and infants are removed for care La Esperanza)
Initial Design Extended Truck Chassis with Box Ford F450 Truck ● Passenger seat folded down to make ● space for monitor Shows driver infant conditions ○ Removes distractions ○ Passengers seated in 2nd row of cab ● Removes access to equipment ○ Custom box holds equipment and ● infants (more area to work) One folding seat in box for medical ● personnel
Honduras Trip (October 6 th - 10 th ) Many Things Have Changed...
Actual Scenario 1. Comayagua calls Hospital Escuela with critical care infant(s) 2. Doctors at Escuela consult on necessary care 3. Vehicle is loaded with... a. Required number of incubators (flexible) b. Driver c. Medical personnel 4. Vehicle travels to Comayagua 1 hour away 5. Infant is loaded into Incubator 6. Vehicle returns to Escuela Servicing Comayagua (~1.5 hour journey) The idea is to take ONLY critical care infants, as Comayagua needs to learn how to handle more complicated cases
Customer Requirements Toyota Chassis Large Equipment Small Equipment ● Verbal Communication ● Incubator Scissors ● ● with driver Oxygen Gauze ● ● Jump seat (Paramedic) ● CPAP Tape ● ● Seats for family ● Vital Monitors Hand Sanitizer ● ● Flexible design ● IV’s ● 3 incubator max ● Straps ● Storage for Small ● Blankets ● Equipment Hats ● Easily Cleaned ● Diapers ●
Engineering Requirements Parameter Specification Importance Medical Equipment Needed Max Number of Infants in a Single Trip 2-3 9 Incubator - 9 Appropriate temperature for infants Heart Rate Monitor - 8 (in incubator) 17-38.9 degrees C 9 Oxygen Masks - 8 Safe storage of oxygen tanks Ability to be secured during transport 9 Ventilator - 8 Incubator Power Duration 4 hours 9 Blood pressure monitor - 7 Self-sustaining Power at least 4 hours 9 Temperature Sensors - 6 Power Requirements 120AC Voltage with DC Voltages 9 Various Drugs - 6 Oxygen Tank Duration 4 hours 9 IV supplies - 5 Extra movable seating for medical professional 1 8 Small Medical Equipment (scissors, gauze, etc.) - 5 Calibration range of monitoring equipment Capable of Calibration 8 Infant Equipment Pressure of oxygen tanks at least 2000psi 8 (blankets, diapers, etc) - 5 Interior Light LED 8 Storage space Cabinets secured for movement 7
Functional Decomposition
Functional Decomposition
Functional Decomposition
The Equipment
Benchmarking: The Incubator AirBorne Voyager Transport Incubator International Biomedical 185+ Transport Welch Allyn Baby Active T1-401 Incubator Incubator Weight - 85 lbs Weight - 107.5 lbs Weight not specified ● ● ● Power - 120V AC Power - 230V AC Power - 230V AC ● ● ● Battery life not specified 4 hr battery life 4 hr min. battery life ● ● ● Built in monitoring equipment Built in monitoring equipment Built in monitoring and ● ● ● Straps for infant securement oxygen system ●
Interior Layout Considerations
Incubator Selection
AirBorne Voyager Transport Incubator Function Requirements American Standards Goal Effectiveness Yes Yes Securements Attaches to stretcher secured into ambulance Custom Frame with locking mechanism Transport Infant Durability Dimensions 20.9 x 19.0 x 39.2 (H x W x L) 20.9 x 19.0 x 39.2 (H x W x L) Safety 4 point belt system for infant 5 point belt system for infant Maintain Safety Cleanliness Sanitize with chlorine or alcohol agent Sanitize with chlorine or alcohol agent Temperature 32-36±0.05 degrees C 32-36±0.05 degrees C Warmth Power Usage 120V, 50-400Hz (has extendable battery to 6 hours) 120V, 50-400Hz (has extendable battery to 6 hours)
Benchmarking: The Patient Monitor Welch Allyn Propaq LT Patient Monitor Unknown Option Philips Intellivue x2 Cost~$4500 Something more affordable Cost~$3000 ● ● Power Duration - 24 hours Power Duration - plugin or ● ● Heart Rate, O2 battery (3 hours) ● Concentration, Blood Heart Rate, O2 ● Pressure Concentration, Blood Weight-2lbs Pressure ● Weight-2lbs ●
Benchmarking Specifications: Monitor Based on ISO Standard 18778 Function Requirements American Standards Goal NonInvasive Blood Dias 10-105mmHg, Syst 25-120mmHg, Dias 10-105mmHg, Syst 25-120mmHg, Pressure (NIBP) Mean 10-110mmHg Mean 10-110mmHg Oxygen Monitor (oxygen Sensors 50-98% Saturation before alarm sounds 50-98% Saturation before alarm sounds saturation monitor) Pulse Rate error <5% error <5% Temp. Sensors 0-50 0-51 Operating specs Always operate within + or -2% nominal Always operate within + or -2% nominal Mains power Power requirement 12-28Volts, 25W 12-28Volts, 25W Charge Time 8-12Hrs while running, 6-8Hrs while not 8-12Hrs while running, 6-8Hrs while not Battery 3Hrs running full, 5Hrs monitor and Life span 3Hrs running full, 5Hrs monitor and SpO2 SpO3 Information ECG Leads and print Output outs
Benchmarking: Ventilator F&P Neopuff Infant T-Piece Resuscitator Crossvent 2i+ Infant Ventilator TXP-2D High Frequency Ventilation (CPAP) Built-in to incubator Compatible with incubator and Provides air pressure to ● ● ● Automatically controls Crossvent 2i+ lungs w/o cycling airflow ● airflow rate Automatically controls airflow rate No control of pressure or ● ● Measures exhalation rate Adjustable flow rate initiation of breaths ● ● Battery Powered Variable frequency and Amplitude Currently used in ● ● ● Honduras
CPAP / Ventilator Selection
Functionality Measures and displays pressures ● Lightweight and small size ● Gas inlet and outlet ● Manually control pressure by ● putting finger over hole in gas outlet tubing Modification Add a automated settable mechanical attachment to the gas outlet in order to provide pressure control without the need for constant human interaction while maintaining the same functionality of the equipment F&P Neopuff Infant T-Piece Resuscitator with MSD modifications
Benchmark Ventilator Specifications TV-100 Ventilator (Bio-Med Devices) Function Requirements American Standards Goal Battery 7-11 Hours(TV-100), 5-7 Hours DC has AC adaptor(TV-100), AC DC has AC adaptor(TV-100), AC Voltage Power Voltage -25,+15% of nominal, DC Plug -25,+15% of nominal, DC Voltage Voltage -15,+25%, AC Frequency -15,+25%, AC Frequency -5,+5% -5,+5% Tank 50psi 50psi Air Supply Compressor 50psi 50psi Pressure 1-60cmH20 1-60cmH21 Natal TV 2-100mL 2-100mL Adjustability Oxygen 21-100% 21-100% content Air Flow I:E 3:1 to 1:99, TV of 5-100mL TV 5-100mL Maintain Safety Durability Meets EN794-3 safety specifications Meets EN794-3 safety specifications
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