designing a portable neonatal intensive care unit (babypod) for emergency situations bme 401:...
TRANSCRIPT
Designing A Portable Neonatal Intensive Care Unit (BabyPod) For Emergency Situations
BME 401: Preliminary Design Presentation
Kasidis Horsangchai, Doreen Sheen, and David Yang
Frank Yin, M.D., Ph.D.
Laura Marquardt
Group 23:
Mentor:
Teaching Assistant:
Client
Karen M. Wickline, M.D.
St. Louis Children’s Hospital
Neonatal Intensive Care Unit (NICU)
Washington University
Associate Professor of Pediatrics
Thermal Instability
Three Main Disadvantages:
1. Poor thermal insulation2. Large surface area to volume ratio3. Small mass to act as heat sink
NICU Isolettes
Stable Thermal Environment, 36.5 ± 0.5˚C
Humidity Control Clear Walls and
Hood Easy Access Doors
GE Giraffe Omnibed
Problem Definition
Natural Disaster At-Home Birth Transportation
between Hospitals
1. Thermal Regulation of Pre-Term Babies
2. In Emergency Situations
BabyPod
Our product, BabyPod, is an emergency alternative neonatal intensive care unit that is low-cost and portable. BabyPod will significantly decrease the risk of over-heating and under-heating by introducing a temperature regulation system driven by a closed-feedback loop.
Specifications
ACTUATORTemperature – 0.1 degrees Celsius sensitivity. Be able to regulate baby’s temperature between 36-37 degrees CelsiusHumidity – have a container for water, be able to actively control humidity (user input)
MONITORLCD DisplayLow Energy Demand
POWER SOURCEStand AloneRechargeable Small SizeReliable/ StableLast At Least One Day
Desired Specifications:
CONTAINERInsulatedCompatible with other devicesPadded interior
SENSORS Breathing Monitor
POWER SOURCE Compatible with other power sources (Able to draw energy from these sources)
Necessary Specifications:
CONTAINERLength > 50cmWidth > 30cmHeight (of baby compartment) > 20cmFace of baby visibleWeight – easily carried by one person (< 10 kgs)Be able to support the weight of 2kgsAllows O2 (airflow)Secured babyDurable
MECHANICALStable InteriorReduce JarringHeat Resistant/Durable MaterialLight Weight Material 20N force test
SENSORSLow Power DemandSmallSkin TouchMinimal WiringInterface with a displaySoftwareADC, DAC, DSP (low cost, reliable)Humidity controllerTemperature
Specifications
Rechargeable, stand-alone power source lasting minimum of 24 hours
Well-Insulated Regulate temperature with a 0.1 ºC sensitivity System to actively control humidity Easily carried by one person (<10 kgs) Secured Baby Mechanism to reduce jarring Face of baby visible Easily opened and closed
Delegations
Phase 1 Phase 2 Phase 3
Kasidis Horsangchai Temperature Regulation/Actuators X X Circuit Design X X X Workflow for Software X
Doreen Sheen Literature Search X Material Research X Budget X X CAD X X
David Yang Sensors X X Power Source X X Mechanical Design X X Website X X
Deadlines and Milestones
9/24 10/1 10/8 10/15
10/22
10/29
11/5 11/12
11/19
11/26
12/3
Preliminary Report
Web Page
DesignSafe
Circuit Designs
Mechanical Designs
CAD Drawings
Progress Report
Final Circuit Design
Final Mechanical Design
Final CAD Drawings
Final ReportDue DateIn Progress
Phase 1 Phase 2 Phase 3
References
Faculty bio: Karen M. Wickline, M.D. Washington University Department of Pediatrics. <http://peds.wustl.edu/faculty/wickline_k/FacultyBio/tabid/4469/Default.aspx>.
March of Dimes, PMNCH, Save the Children, WHO. Born Too Soon: The Global Action Report on Preterm Birth. Eds CP Howson, MV Kinney, JE Lawn. World Health Organization. Geneva, 2012.
GE Healthcare. The Giraffe Family: Helping Make Sick Babies Well. <http://www.gehealthcare.com/euen/maternal-infant-care/docs/Giraffe_Family_bro_e.pdf>. 2010.
Ngo, Denise. “Fetching Incubator Backpack May Save Newborn Lives.” PopSci. <http://www.popsci.com/gadgets/article/2010-05/fetching-new-baby-incubator-may-help-medics-backback-sick-babies-safety>. May 19, 2010.
“The Embrace Infant Warmer is a Product with a Mission.” Embrace. <http://www.embraceglobal.org/main/product>.