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Nasogastric Rehydration System

Nasogastric Rehydration System. Gaby Bravoco , Jon Gabriel, Pamela Hitscherich , Joshua Min, Paige Reinhardt. Introduction. Dehydration is the second leading cause of death in children and kills 2.2 million people per year worldwide There are numerous options for rehydration therapy

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Nasogastric Rehydration System

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  1. Nasogastric Rehydration System Gaby Bravoco, Jon Gabriel, Pamela Hitscherich, Joshua Min, Paige Reinhardt

  2. Introduction • Dehydration is the second leading cause of death in children and kills 2.2 million people per year worldwide • There are numerous options for rehydration therapy • The most advanced method of treatment if IV rehydration • Poses some risks for underdeveloped nations and disaster ridden areas • Nasogastric rehydration is a therapy is a more plausible method in these target areas

  3. Introduction

  4. Problem Statement • Current hydration therapy method of IV rehydration does not fit the clinical needs in developing countries • There is a need for a hydration method for underdeveloped or disaster ridden areas that does not require sterilization, expensive fluids or constant monitoring

  5. Design Requirements and Specifications

  6. Design Requirements and Specifications • Appropriate response to inputs:

  7. Development Methodology

  8. Design Concepts • Must have flow rate 5-15 mL/min • Pump Considerations • Gravity feed • Peristaltic vs. Piston • Adjustability • Pump Selected: • Voltage controlled • 12V DC Motor • Low flow rate (2-17mL/min) • Low negative pressure

  9. Design Concepts • Battery Choice • 1 Large 12V battery • 17 amp hours • 13 lbs • Full current • Multiple 12V batteries connected in parallel • 8 amp hours • 5 lbs • Faction of full current • Solar Panel • Solar Charge Controller • AC to DC Converter • Potential power source

  10. Power Circuit

  11. Design Concepts • Hydration Control • Needs of Hydration Control • Adjust fluid flow according to hydration needs • Clinician Control • Surrogates • Hydration Sensing • Design Requirements • Adjust fluid flow from 0.5-8.0 L/day • Correlate age, gender, and temperature with hydration needs

  12. Design Concepts • Hydration Sensing Materials • DS18S20 Digital Thermometer by Maxim Integrated • Arduino Uno Board • Rotary and toggle switch • Spring Semester Redesign • Incorporate hydration monitor • TBW or osmolality measurements • Allow some clinician control

  13. Design Concepts • Tubing • Considerations • Nasogastric tubes • Silicone Airline Tubing • Chemical Resistant PVC • Dimensions • ID= 1/16” • OD= 1/8” • Wall Thickness= 1/32” • Fluid Container • 1 liter water bottle

  14. Design Concepts • Considerations • Tamperproof • Water Resistant • ESPEC Rain & Spray test • Lightweight (20 lbs.) • Durable • Casing • Plastic • Plexiglass window to encase solar panel • Fluid containment/ attachment

  15. ProE Simulation

  16. Testing

  17. Timeline

  18. Timeline • All parts all parts have been ordered except the case • System will be physically assembled by December 18th • Team is currently communication with second sensor company • Team will shift main focus to development of model and algorithm of human dehydration/rehydration • Testing • Design Review with Physician • Presentation at NEBEC

  19. Budget

  20. Questions?

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