[Review of the design of power supply in retinal implants].
The energy supply for the stimulation arrays is the key component in retinal implants. Usually, the thin film solar cell is used to supply energy, but it can not supply enough stimulation power. One of the general idea of incident energy supply is radio frequency (RF) circuit. Another method is to convert near infrared (NIR) radiation and enable retina cell stimulation. In this paper, firstly, we aim at listing these two energy supply methods, and introduce the characteristics of RF circuit and NIR conversion method. Especially, we present the design procedure in detail. The next part is a discussion on the advantage and disadvantage of adopting these two methods. At last, we explicate the new research and application of the energy supply for the use as retinal implants, and we envisage the future.
Zhang
Ying
Y
College of Bioengineering, Chongqing University, Chongqing 400044, China. zhang.cq@163.com
Peng
Chenglin
C
Wang
Xing
X
Hu
Ning
N
Zhang
Sijie
S
Zheng
Erxin
E
D000818:Animals; D001766:Blindness / Q000534:rehabilitation; D011211:Electric Power Supplies; D004558:Electric Stimulation / Q000295:instrumentation* / Q000379:methods; D004567:Electrodes, Implanted; D005074:Evoked Potentials, Visual / Q000502:physiology; D006801:Humans; D011474:Prosthesis Design; D019919:Prosthesis Implantation / Q000379:methods*; D012160:Retina / Q000502:physiology*