Displacement simulation analysis of Microelectrode Array in Artificial Retina

Author

Hu, Ning ; Peng, Chenglin ; Wang, Xing ; Zhang, Sijie ; Zhang, Ying

Author_Institution

Chongqing Univ., Chongqing

fYear

2007

fDate

23-27 May 2007

Firstpage

1236

Lastpage

1239

Abstract

Artificial retina aims for the vision recovery of patient with degenerated photoreceptors by stimulating the remained retinal neurons. As a part of stimulator, MEAs (microelectrode arrays) has been developed. The MEAs was designed based on the technique of MEMS (microelectro mechanical systems). The microelectrode arrays dimensions of about 3 mm times 3 mm times 20 mum. The simulations are carried out with respect to the press force yielded by the eyeball. The results validated the feasibility of the MEAs in mechanics. The structure and parameters concerning the artificial retina microelectrode arrays can be optimized using the results.

Keywords

artificial organs; bioelectric phenomena; biomedical electrodes; diseases; eye; microelectrodes; micromechanical devices; neurophysiology; vision; artificial retina; degenerated photoreceptors; displacement simulation; eyeball; microelectrode array; microelectromechanical systems; press force; retinal neurons; size 20 mum; size 3 mm; vision recovery; Analytical models; Biological materials; Computational modeling; Implants; Microelectrodes; Needles; Neurons; Optical arrays; Retina; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Complex Medical Engineering, 2007. CME 2007. IEEE/ICME International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-1077-4

Electronic_ISBN

978-1-4244-1078-1

Type

conf

DOI

10.1109/ICCME.2007.4381941

Filename

4381941