Retinal Prosthesis Using Thin-Film Devices on a Transparent Substrate and Wireless Power Transfer
Retinal Prosthesis Using Thin-Film Devices on a Transparent Substrate and Wireless Power Transfer
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DOI：
10.1109/ted.2019.2960295
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发表时间：
2020-01
影响因子：
3.1
通讯作者：
Keisuke Tomioka;Kohei Toyoda;T. Ishizaki;T. Noda;J. Ohta;M. Kimura
中科院分区：
文献类型：
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作者：
Keisuke Tomioka;Kohei Toyoda;T. Ishizaki;T. Noda;J. Ohta;M. Kimura
视网膜假体是一种很有前途的恢复视障人士视力的技术。然而，一些传统的视网膜假体需要外部摄像头，眼球方向与观察方向不同。此外，有些还需要身体内外的有线连接，生活质量(QOL)严重受损。在本文中，我们开发了一种使用透明衬底上的薄膜器件和无线能量传输的视网膜假体。突出的优点是：集成了薄膜光电晶体管，使眼球和视野方向一致，采用透明衬底实现视网膜前植入，采用无线能量传输，确保生活质量。特别是在本文中，进行了猪眼球实验。结果表明，激励电流是一个合适的值，振荡频率依赖于光照度。从这些结果可以得出结论，视网膜假体作为植入器官所需的手术是正确的。
Retinal prostheses are promising techniques to restore eyesight sense for visually impaired people. However, some conventional retinal prostheses require external cameras, and the eyeball direction is different from the view direction. Moreover, some also require a wired connection between inside and outside of the body, and the quality of life (QOL) is seriously impaired. In this article, we have developed a retinal prosthesis using thin-film devices on a transparent substrate and wireless power transfer. The outstanding advantages are: thin-film photo-transistors are integrated to make the eyeball and view directions the same, a transparent substrate is employed to achieve epiretinal implantation, and wireless power transfer is adopted to ensure the QOL. Particularly in this article, a pig eyeball experiment is executed. It is found that the stimulating current is an appropriate value, and the oscillating frequency is dependent on the light illumination. From these results, it is concluded that the correct operation necessary for a retinal prosthesis as an implanted organ is confirmed.