2. Deliverable
• Week 6 deliverable
• Become familiar with sickle cell disease before the
immersion at St. Francis
• Conduct research on sickle cell disease
4. 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
7. Research
Size of area affected
The size of the area that can be affected by
vaso-occlusion is unknown
8. 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
Here we see a table showing the specifications used to determine which 780 nm wavelength LED to buy.
When placed in the decision matrix, the Justar LED was the best choice for the 780 nm wavelength.
In this slide we see the specification used for the 940 nm LEDs.
When placed into the decision matrix, the TaoYuan LED was the best choice at 940 nm.
Here we see the specifications for the 660 nm LEDs
When placed in the decision matrix, the Vanktronics 660 nm LED was our choice for this specific wavelength
For photodiodes, the decision matrix was based on Noise-Equivalent Power, size, Peak wavelength, and cost.
Of the photodiodes chosen, the S7509 was selected.
The armband prototype was a very simple model. 3 pairs of LEDs and IR LEDs were place in one section of the arm band. The photodiode was place on the opposite section of the armband.
The materials need to construct the armband included, black nylon cloth, velcro to account for varying arm size, 3 Emitters, and 1 Detector.
