deliverable week 6 final
DESCRIPTION
TRANSCRIPT
Team VOD
Vaso-Occlusion DetectionMatthew Plaisance
Madison McLeod
Francois Decuir
Uttam Dhodary
Deliverable
• Week 6 deliverable• Become familiar with sickle cell disease before the
immersion at St. Francis• Conduct research on sickle cell disease
Research
Treatment• Fluid therapy• Oxygen Therapy• Blood transfusions• Hydroxyurea
Research
How it occurs• Obstruction of a vessel by sickled erythrocytes.• Damaged endothelial walls of blood vessels• Leukocytes and platelets reducing the availability
of chemicals that dilate the vessel
Research
Frequency of occurrence• Varies from patient to patient• Anywhere from once a year to once a month
Research
Current methods of detection• X-Rays• MRI• CT
Research
Size of area affectedThe size of the area that can be affected by vaso-occlusion is unknown
Research
• Time it takes to clear Varies from patient to patient
• Can last from hours or days to weeks• Sustain episodes of vaso-occlusion can cause• Multiple Organ Failure• Bone Pain• Splenic Crisis
Research
Physiological implication of occurrence• Pain• Swollen hands and feet• Swollen spleen• Stroke• Pulmonary Hypertension• Abnormal Chest X-Ray• Low O2 levels• Infections
Deliverable
• Decide on a configuration for the arm band using a decision matrix
Decision Matrix Armband Configuration
Deliverable
• Construct a decision matrix to determine which type of LEDs and photodiodes to buy
Decision Matrix 780 nm
Decision Matrix 780 nm
• Results
Decision Matrix 940 nm
Decision Matrix 940 nm
Decision Matrix 660 nm
Decision Matrix 660 nm
Decision Matrix Photodiode
Decision Matrix Photodiode
Construct an Armband
LEDIR LEDPhotodiode
Construct an Armband
• Black nylon cloth• Adjustable for
varying arm size• 3 Emitters• 1 Detector
Pulse Oximeter Circuit
• Parts• Multivibrator(CD4047BE)• Binary counter (MM74HC393N)• 3-to-8 bit decoder (74F138PC)• Operational Amplifiers (LM324N and LM741CN)• Sample and Hold Chips (LF398N)• Data Acquisition (DAQ) (NI USB-6009)• Voltage Regulator (KMT15-51515)• LEDs (660 nm, 805 nm, 940 nm)• Photodiode (S6931-01)
Pulse Oximeter Circuit
Multivibrator
Binary Counter
Decoder
Inverter
QuadrupleOp-amp
Sample and Hold
Operational amplifier
Voltage Regulator
LabView
LabView