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. Recap Design Review 2 2. System Overview 3. Subsystem Breakdown 4. Vehicle Interior Design 5. Major Equipment Systems Updates a. Incubator b. Ventilator c. Patient Monitor 6. Power Systems 7. Preliminary BOM 8. Updated Risk Assessment 9. Final Deliverables and Next Steps
Recap: Design Review 2
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 ○
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 ●
New Vehicle Design Direction Vehicle Technical Specifications Diesel Engine ● 4 wheel drive ● Manual Transmission ● External Dimensions (L x W x H) ● 5.07 x 1.77 x 2.12 m ○ Internal Compartment ● Dimensions (L x W x H) 2.05 x 1.44 x 1.23 m ○
Design Concept - Option 3
Selected Equipment Incubator Ventilator Patient Monitor AirBorne Voyager Transport Incubator F&P Neopuff Infant T-Piece Resuscitator Unknown with MSD modifications Weight - 85 lbs ● Battery Duration minimum 3 ● Power - 120V AC hours ● Measures and displays pressures ● Heart Rate, O2 Concentration, ● Battery life not specified ● Lightweight and small size ● Blood Pressure Built in monitoring equipment ● Gas inlet and outlet ● Weight <2lbs ● Straps for infant securement ● Manually control pressure by putting ● Affordable ● finger over hole in gas outlet Modify for automatic pressure control ●
Inverter Power Feasibility Analysis Power Calculations Incubator (x2) Monitor/Screen (x2) Ventilator (x2) Total Output Current of 4.4A 120Vac 60Hz Power 120Vac 60Hz Power 120Vac 60Hz Power Total Output Power of 528W 12Vdc External DC Average Instantaneous Average Instantaneous Input Power = Output Power Power, 10A Maximum Power of 50W Power of 100W Input Power of 528W out of a 13Vdc 12Vdc Internal Battery, Vehicle Battery 26A-Hours UPS Back Up System Internal Battery Input Current of 40A Current of 1A Current of 0.4A Current of 0.8A Standard Vehicle Battery 13Vdc Power Assumptions 50A-Hours Total Output Power of 1kW for Feasibility Plenty of Extra Power for HVAC System Standard Vehicle Alternator 180A Alternator 30A 12Vdc to 120Vac 1kW Power Inverter Or 1kW Power Generator
Sub-System Overview
Subsystem Breakdown Vehicle Chassis Monitoring Equipment Equipment Securements Vehicle itself Monitor itself Incubator securement ● ● ● Built-ins (cabinetry ect.) Blood pressure cuff Cabinet locks/ interior ● ● ● Heart rate sensors Other equipment securement ● ● Seating Integration/securement (including ● Paramedic seating Power / Electrical ● wiring) Family seating power supply equipment ● ● Ventilator Backup power supply?? ● Incubator CPAP Electrical and wiring ● ● The incubator itself ● Modification control device Lighting ● ● Baby securements ● Oxygen Tank ● Interfacing equipment (ie. Design Form ● Oxygen mixer ● breathing tubes) Layout ● Breathing mask ● Interior design ● Incubator tubing ● Exterior design ● Support Equipment Additional medical equipment ● Small equipment for baby ●
Equipment List Large Equipment Small Medical Equipment* Other Small Equipment* Incubator (2) Tape Diapers ● ● ● Patient Monitor (2) Gauze Wipes ● ● ● Ventilator (2) Bandages Blankets ● ● ● Oxygen Tanks (4 + Spares) IV Supplies Hats ● ● ● Power Inverter System Generator Blended Flowmeter Scissors Disposal Container ● ● ● Paramedic Seat Alcohol Hand Sanitizer ● ● ● Family Seat Thermometer Cleaning Supplies ● ● ● Suction Emergency Supplies ● ● Oxygen Mask and Tubing ● Heart Rate Sensor ● Latex Gloves ● *Cabinet Storage must be able to hold these items
Vehicle Layout
Proof of Concept - Spatial Analysis Cabinet Interference Basic Spatial Analysis with Large Equipment Cabinets 2 Incubators ● Paramedic Chair ● Family Chair ● 2 Overhead Cabinets ● Paramedic Seat Cabinetry interferes with Incubators paramedic headspace ⇒ Redesign Cabinetry Family Seat Configuration
Spatial Analysis - Version 2 Modifications Made Cabinets moved above ● side incubator Monitor storage added ● Driver Window added ● Family chair modified to ● include storage Rear View Equipment fits in Space ⇒ Limited Headroom and Storage space
Spatial Analysis - Version 3 Increased Interior Height of Vehicle to 60” 2 Incubators ● Paramedic Chair ● Family Chair w/ Storage ● Rear View 4 Overhead Cabinets ● 2 Monitors ● Driver Window ● Increased Height allows for additional head space and more flexible storage
Final Vehicle Selection Toyota Landcruiser 78 Hardtop* Vehicle Technical Specifications Diesel Engine ● 4 wheel drive ● Manual Transmission ● External Dimensions (L x W x H) ● 5.07 x 1.77 x 2.12 m ○ Internal Compartment ● Dimensions (L x W x H) 2.05 x 1.44 x 1.23 m ○ * We decided to raise the roof of the hardtop model from 48” to 60”
Final Interior Layout Track Moves Seat to Wall Seat Rotates and Folds Seat Folds into Wall, Storage Underneath Monitor Stand Overhead Storage with Sliding Doors
Family Seat with Storage 3 point harness for ● passenger securement Full seat back for comfort ● and safety Seat base folds up for floor ● clearance Under-seat storage ●
Paramedic Seat Custom Designed Paramedic Seat 3 point harness for ● securement Incremental Rotation ● (minimum +/- 90 deg) for incubator access Track in floor for seat to slide ● Seat folds up (vertically) to ● save floorspace
Storage Designs
Material Requirements Upholstery Flooring Time Lapse Storage ● Run for time of 2 hours without ○ interruption 100,000 or more Vinyl Composition Easily Cleanable ● ● ● Run on battery until it runs out ○ double rubs (test for Flooring or LVT Strong ● durability) Easily Cleanable Lightweight ● ● Before and after every test the ventilator shall Soil and Stain Traction Cost effective to ● ● ● function within stated parameters. resistant manufacture Material Considered: Easily cleanable or at ● Vinyl Composite Tile with Material Considered: least bleach cleanable Enhanced Surface Traction Molded Acrylic or 3D Moisture barrier ● printed material Material Considered: Vinyl
Possible Materials that Fit Requirements KNOLL LONSEAL 3D Printing Material Prairie in Creek K19258 Loncoin I Gray 124 Vinyl Upholstery Vinyl Composition Tile
Incubator
Incubator Selection Reconsidered AirBorne Voyager Transport Incubator International Biomedical 185+ Transport Incubator Weight - 85 lbs Weight - 107.5 lbs ● ● Battery life not specified 4 hr battery life ● ● Built in monitoring equipment No built in monitoring ● ● Straps for infant securement equipment ● Cost = $100,000 Cost = $25,000 ● ●
Ventilator
Patient Monitor
Power Systems
Basic Power Structure Power Calculations: Based on draw from Incubator (x2) ● Patient Monitor (x2) ● Total Output Current≈4A Total Output Power≈480W Safety Factor: 2-4
Feasibility Calculations Theoretical results 150A-180A alternator needed ● to support 12Vdc vehicle battery ○ DC-AC pure sine wave ○ power inverter Inverter must withstand total ● draw of 2kW ⇒ second vehicle battery must be installed
Additional Electrical Infrastructure
Power Infrastructure Chart Vehicle Alternator 1kW 12Vdc - 120Vac True Sine Master 12Vdc Vehicle Wave Power Switch/Fuse Battery Inverter 12AWG Cable 15A, 120Vac 15A, 120Vac 15A, 120Vac Fuse Panel Receptacle Receptacle Receptacle Incubator (2) Monitor (2) Excess Stereo Lighting Fans Fans
Future Outlook
Preliminary Bill of Materials (BOM) Total Anticipated Budget: ~$ 140,000 (Assuming new equipment)
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