GN Project – Iteration Report

The electronics team led by Nichola Tali, Engineering Lab Coordinator at Ashesi University College worked on the creating a working prototype for one of the product solutions that were settled on-the vein finder.

The vein finder prototype was done with red LEDs and tested. The team recorded success in seeing veins when a palm is placed over the lights. However, when the arm is moved further over the lights, veins become less and close to unseen. This is attributed to the increased thickness of muscles. For fair/light skinned people, veins were much more easily seen than when the vein finder was used on dark skinned people. Following this

The vein finder prototype was done with red LEDs and tested. The team recorded success in seeing veins when a palm is placed over the lights. However, when the arm is moved further over the lights, veins become less and close to unseen. This is attributed to the increased thickness of muscles. For fair/light skinned people, veins were much more easily seen than when the vein finder was used on dark skinned people. Following this

For fair/light skinned people, veins were much more easily seen than when the vein finder was used on dark skinned people. Following this insight, we changed the light source from red LEDs to infrared light. Infrared light has a greater ability to penetrate the skin and will make viewing veins easier regardless of skin colour. Replacing the red LEDs with infrared LEDs and using a different approach to circuitry, we will explore how efficient we can create a sustainable device.

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