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Micro Fabrication of a Nerve Stimulator for a Retinal Prosthetic Device

Micro Fabrication of a Nerve Stimulator for a Retinal Prosthetic Device. Michael McNutt Committee: Dr. Ahmed Dr. Wheeler Dr. Wiener. Overview. Introduction Previous Work Design and Testing Timeline Conclusion Questions. Introduction. Retinal Prosthesis Macular Degeneration

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Micro Fabrication of a Nerve Stimulator for a Retinal Prosthetic Device

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  1. Micro Fabrication of a Nerve Stimulator for a Retinal Prosthetic Device Michael McNutt Committee: Dr. Ahmed Dr. Wheeler Dr. Wiener

  2. Overview • Introduction • Previous Work • Design and Testing • Timeline • Conclusion • Questions

  3. Introduction • Retinal Prosthesis • Macular Degeneration • Retinitis Pigmentosa • Other Uses for a Nerve Stimulator • Spinal injuries • Hand prosthetics • Drug delivery system

  4. Overview of the eye

  5. Previous Work (Retinal prosthesis) • Ultimate goal is to fill in for lost photoreceptors • Types of retinal devices • “Temporary” chips placed on the retina • Retinal Chip • External Cameras

  6. Previous Work (Nerve Growth) • Use Nerve Growth Factors on the Chip • Chip placed in a bath of nutrients and proteins to aid in growth in vitro • Current Problems • Correct direction of growth • Stimulation of the Nerve • Adhesion to the chip

  7. Design and Testing • Design • Retinal prosthetic device • Retinal Chip • Nerve stimulator • Micro Electrical Mechanical Systems • Using LASI to Layout the device • Testing of the device • Growing the Nerves in a Petri dish • Horse shoe crap

  8. Timeline • Spring 2003 • Researching previous work • Summer 2003 – Fall 2003 • Developing the circuit • Grow nerve cells on to a Si chip • Winter 2003 – 2004 • Fabrication and testing of the device

  9. Conclusion • Introduction • Previous Work • Retinal prosthesis • Nerve growth • Design and Testing • Timeline

  10. Questions?

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