Fully Implantable Retinal Prosthesis Chip with Photodetector and Stimulus Current Generator

Author

Tanaka, T. ; Sato, K. ; Komiya, K. ; Kobayashi, T. ; Watanabe, T. ; Fukushima, T. ; Tomita, H. ; Kurino, H. ; Tamai, M. ; Koyanagi, M.

Author_Institution

Tohoku Univ., Sendai

fYear

2007

fDate

10-12 Dec. 2007

Firstpage

1015

Lastpage

1018

Abstract

To recover visual sensation of blind patients, we have fabricated a fully implantable retinal prosthesis chip that includes photodetector and stimulus current generator. For the first time, we successfully implanted the retinal prosthesis chip bonded on the flexible cable with stimulus electrode array into a rabbit eyeball. Moreover, we recorded and analyzed electrically evoked potential (EEP) elicited from a rabbit brain by current stimulation to retina.

Keywords

biomedical electrodes; eye; photodetectors; prosthetics; visual evoked potentials; blind patients; current stimulation; electrically evoked potential; flexible cable; implantable retinal prosthesis chip; photodetector; rabbit brain; rabbit eyeball; stimulus current generator; stimulus electrode array; visual sensation; Biomedical engineering; Biomedical optical imaging; Circuits; Electrodes; High speed optical techniques; Optical signal processing; Photodetectors; Photoreceptors; Prosthetics; Retina;

fLanguage

English

Publisher

ieee

Conference_Titel

Electron Devices Meeting, 2007. IEDM 2007. IEEE International

Conference_Location

Washington, DC

Print_ISBN

978-1-4244-1507-6

Electronic_ISBN

978-1-4244-1508-3

Type

conf

DOI

10.1109/IEDM.2007.4419127

Filename

4419127