| Autor: |
Yu-Chong Tai, James D. Weiland, Yang Liu, Manuel Monge, Yu Zhao, M. H. Yun, Chia-Chen Yu, Dongyang Kang, Jay Han-Chieh Chang, Azita Emami-Neyestanak |
| Rok vydání: |
2013 |
| Předmět: |
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| Zdroj: |
2013 IEEE 26th International Conference on Micro Electro Mechanical Systems (MEMS). |
| DOI: |
10.1109/memsys.2013.6474428 |
| Popis: |
Much effort has been put into developing multi-channel retinal prosthetic devices. Currently, even the most advanced prostheses do not have enough channels to provide vision to a desirable level. In this paper, we present a system design and a packaging scheme for a 512-channel intraocular epiretinal implant. Both a wireless power coil (with high transfer efficiency) and a data coil are included for this intraocular system. Simulation of the interference between coils is investigated and the results show that the two coils can be put in a co-planar fashion using two notch filters to minimize interference. The complete package is demonstrated with a mechanical model with a parylene-C flexible circuit board, i.e., parylene flex, to show the placement of the IC chips, discrete components, and coils. It also shows the final folded device after surgical insertion into an eye to save space. The feasibility of the proposed structure has been successfully tested in vivo. Experimentally, the maximum allowable pulling force is measured by a dynamic mechanical analysis (DMA) machine to be 8N, which provides a large safety margin for surgery. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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