arduino-based patient simulator rea rostosky, matt venard, tyler brann, ishita jain
DESCRIPTION
Arduino-Based Patient Simulator Rea Rostosky, Matt Venard, Tyler Brann, Ishita Jain Mentors: Mr. Tommy Roussel & Dr. Darren Brey. Arduino-Based Patient Simulator Rea R., Matt V., Tyler B., Ishita J. What is a Patient Simulator?. Patient . - PowerPoint PPT PresentationTRANSCRIPT
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Arduino-Based Patient SimulatorRea R., Matt V., Tyler B., Ishita J.
Arduino-Based Patient SimulatorRea Rostosky, Matt Venard, Tyler Brann, Ishita Jain
Mentors: Mr. Tommy Roussel & Dr. Darren Brey
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What is a Patient Simulator?
http://www.healthcare.philips.comhttp://www.flukebiomedical.com
Generated Physiological
Signal with Known Characteristics
Patient Simulator Patient Monitor
Patient
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Current Patient SimulatorsExpensive Limited Functionality
Fluke ProSim 8$1014
Pronk® SL-8 SimSlim®$1495
http://www.pronktech.comhttp://www.flukebiomedical.com
http://www.heinstruments.com/
HE Instruments$240
Currently used in UofL Bioinstrumentation Lab!
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• High Functionality for Low Costo Who doesn't want that?
• Arduino Platformo Open source
• Standalone/Portable• Mass producible
o Mostly off the shelf parts
Design Importance / Benefits
http://designbuddy.com/how-to-avoid-cheap-logo-design
http://arduino.cc/
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Intended Users
Users Purpose Served by DeviceBioinstrumentation Students
physiological signal generation
Device Developers/Researchers
testing of device prototypes
Medical Technicians calibration in hospital settings
Medical Professionals in Developing Nations
calibration in rural settings
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Design Criteria
• < $50• EKG, Blood Pressure, Respiration, & Temperature
Signals • Handheld• Standalone (Battery Powered)• Simple User Interface• Compatible with Various Patient Monitors
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Design Timeline
http://www.gettyicons.comhttp://www.arduino.cc
V.2
V.3V.4
V.1
DAQ
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2nd Order RC Filter
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Coding
• Adapted code to disable built-in interrupt in PWM digital signal
• Converting to hexadecimal and acquiring appropriate sample rate
• Incorporating user interface o LCD and push buttons
http://www.hdwallpapersdepot.com
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Design Solution
http://www.cooking-hacks.comhttp://www.sainsmart.comhttp://www.alkalinebatteries.ushttp://www.usbgeek.com
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Available Signals1. Normal EKG2. Bradycardia3. Tachycardia4. Ventricular Bigeminy5. Slow Alternating Ventricular Bigeminy6. Rapid Alternating Ventricular Bigeminy7. Bidirectional Systoles8. Arterial Blood Pressure9. Normal Resting Respiration10.Obstructed Respiration11.Hypoventilation12.Temperature (37oC)
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Testing Data
• Verificationo Filter must have a cut-off of 7.0 +/- 0.5 kHz (76.9 +/- 6.2
dB)o Approx. 5x larger than highest frequency we output
• Difficulty in validation
http://statistically-funny.blogspot.com
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Benefits of This DesignMarket Patient Simulators Needed Notes
Biomedical Engineering Programs
3500 514 programs nationwide totaling approximately 9800 students
Biotech Engineering Programs
2500 181 programs nationwide totaling approximately 6900 students
Developing Nations (via DWB)
1000 22,000 doctors, nurses, logisticians, and other medical staff serving and treating over 8,500,000 patients in 67 countries
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Future Device Improvements
• Powero On/Off Switcho Casing (Battery Access)
• Scrollo ...delay
• Digital Pin 6• EKG Leads
o The more the merrier
Clipart by 3poD - http://clipartof.com/16379
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Future Device Direction
Projected Growth by 2014Market Simulators
NeededIncome (at $125 per simulator)
Manufacturing Cost (at $35 per
simulator)
Total Revenue
Biomedical Engineering Programs
5200 $650,000 $182,000 $468,000
Biotech Engineering Programs
3700 $462,500 $129,500 $333,000
Developing Nations (via DWB)
1250 $156,250 $43,750 $112,500
Total 10150 $1,268,750 $355,250 $913,500
http://www.theiia.org/intAuditor/media/images/forward.png
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Conclusions
• Functional Arduino-Based Patient Simulatoro 12 available signalso LCD/button user interfaceo Versatile banana clip outputso Standalone, Powered by 9 volt alkaline battery
• Total Component Cost of Final Simulator: ~$35
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Lessons Learned• Breadboarding• PCB & Casing Fabrication• Arduino Coding• Improved Oscilloscope
Proficiency• Project Management• Troubleshooting
....and how to make PIE!
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AcknowledgementsUniversity of Louisville, Department of Bioengineering
• Mentors - Mr. Tommy Roussel, Dr. Darren Brey, and Dr. Andre Gobin
• Preliminary PCB Design - Dr. Martin O'Toole
• PCB Fabrication - Doug Jackson
• Acrylic Casing Fabrication - Scott Cambron
• Ordering Components - Connie Yorkhttps://louisville.edu/speed/bioengineering/faculty/smallervitruveanguysmallcopy.gif/image_mini
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