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Development and in vivo Demonstration of CMOS-Based Multichip Retinal Stimulator With Simultaneous Multisite Stimulation Capability.

Authors
  • Tokuda, T
  • Takeuchi, Y
  • Sagawa, Y
  • Noda, T
  • Sasagawa, K
  • Nishida, K
  • Fujikado, T
  • Ohta, J
Type
Published Article
Journal
IEEE transactions on biomedical circuits and systems
Publication Date
Dec 01, 2010
Volume
4
Issue
6
Pages
445–453
Identifiers
DOI: 10.1109/TBCAS.2010.2078508
PMID: 23853382
Source
Medline
Language
English
License
Unknown

Abstract

A complementary metal-oxide semiconductor (CMOS)-based multichip flexible neural stimulator for retinal prostheses was developed. The multichip retinal stimulator is capable of simultaneous multisite stimulation. An on-chip stimulation generator was implemented on the "unit chip," which is the core device of the multichip retinal stimulator. The performance of the CMOS circuitry was characterized. A new device structure and packaging process was developed. The in vivo retinal stimulation on a rabbit's retina was successfully performed and the multisite stimulation functionality was confirmed.

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