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Apnea Response System

Apnea Response System. University of Hartford Senior Design Project M. Shalane Regan Diane Eager Michael Porter 4/10/2007. Apnea. Greek word for “without breath” The stop of respiration for approximately 10-20 seconds 30% to 50% of all premature infants

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Apnea Response System

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  1. Apnea Response System University of Hartford Senior Design Project M. Shalane Regan Diane Eager Michael Porter 4/10/2007

  2. Apnea • Greek word for “without breath” • The stop of respiration for approximately 10-20 seconds • 30% to 50% of all premature infants • 90% of those that are under 28 weeks of gestation have apnea.

  3. Apnea (continued) • Central apnea (apnea prematurity) • Obstructive apnea • Mixed Apnea

  4. Current Treatment • Stimulation from nurse/ Dr/ parent when breathing stops • Continuous Monitoring • Disadvantages: • Too big in size • Many false positives • Disruptive

  5. Current Hospital Monitor • Pulse Ox • EKG • Thoracic Impedance • Nasal Air Flow

  6. Apnea Event in an Infant http://www.empiricaltechnologies.com/page19.html

  7. Methods • Gantt Chart • Functional Decomposition • Quality Function Deployment • Morphological Chart • Failure Mode and Effect Analysis of Design (DFMEA)

  8. Preferences and Customer Requirements • Parent • Safety • Dependability • Easy of use • Doctor • Size • Dependability • Few to no false positives • Nurse • Portable • Compatible with current computers • Rotating screen

  9. Quality Function Deployment

  10. QFD (continued) • Program Capabilities • Operating system • Baseline settings • Battery Life • Long life • Alarm

  11. QFD (continued)

  12. QFD (continued) • Sensors • EKG, Thoracic Impedance • Size • Alarm • Display on Monitor • Easy to use • Digital • Legible

  13. Morphological Chart

  14. Current Design • Wireless system • Wireless patient box • Three electrodes • Vibration stimulator wired to patient box • Station box • Computer reads signals and determines whether infant needs vibration stimulation

  15. Circuit Board Bottom Layer PCB Top Layer PCB

  16. Upon Completion • Working prototype • Different alarms for... • Apnea event • Elevated Heart Rate • Low battery • Disconnect alarm • Automated stimulation • Continuous monitoring and recording of heart rate, oxygen saturation, thoracic impedance, and number of episodes

  17. Future Design • Completely wireless System • Eliminate electrodes using cell phone technology • Keep manufacturing costs to a minimum • Replacement parts can be sold in local stores • Wireless battery technology • Adjustable components for each individual

  18. Questions ?

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