Title :
A CMOS neural-interface chip with 3-channel voltage monitoring for retinal prosthesis
Author :
Uehara, Akihiro ; Ng, David C. ; Furumiya, Tetsuo ; Kagawa, Keiichiro ; Tokuda, Takashi ; Ohta, Jun ; Nunoshita, M.
Author_Institution :
Nara Inst. of Sci. & Technol., Japan
Abstract :
In this paper, we propose and demonstrate a CMOS intra-ocular retinal prosthesis device with continuous voltage monitoring of the stimulus electrodes. The retinal prosthesis device has 16 × 16 current stimulus driver circuits and a 3 channel 16×16 switch matrix to monitor the voltages of the stimulus electrodes. In this paper, we discuss the circuit characteristics. We also report an example of a device packaging for in-vitro experiments.
Keywords :
CMOS integrated circuits; biomedical electrodes; biomedical electronics; driver circuits; eye; prosthetics; sensory aids; 3 channel 16×16 switch matrix; 3-channel voltage monitoring; CMOS intraocular retinal prosthesis device; CMOS neural-interface chip; continuous voltage monitoring; current stimulus driver circuits; device packaging; implantable electrode; in-vitro experiments; stimulus electrodes; Driver circuits; Electrodes; In vitro; Monitoring; Neural prosthesis; Packaging; Retina; Switches; Switching circuits; Voltage;
Conference_Titel :
Biomedical Engineering, 2003. IEEE EMBS Asian-Pacific Conference on
Print_ISBN :
0-7803-7943-8
DOI :
10.1109/APBME.2003.1302673
