Towards a Chip Scale Neurostimulator: System Architecture of a Current-Driven 98 Channel Neurostimulator via a Two-Wire Interfacea

被引：0

作者：

Jung, Louis H. ^{[1
]}

Shany, Nitzan ^{[1
]}

Lehmann, Torsten ^{[2
]}

Preston, Phil ^{[1
]}

Lovell, Nigel H. ^{[1
]}

Suaning, Gregg J. ^{[1
]}

机构：

[1] Univ New South Wales, Grad Sch Biomed Engn, Sydney, NSW 2052, Australia

[2] Univ New South Wales, Sch Elect Engn & Telecommun, Sydney, NSW 2052, Australia

来源：

2011 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC) | 2011年

基金：

澳大利亚研究理事会;

关键词：

D O I：

暂无

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

With more clinical trials proving viability of visual prosthesis follows the demand for higher resolution devices. As the number of electrodes increases, due to surgical difficulties, it is preferred to keep their length short by placing the implant close to the stimulation site, where there are considerable constraints on device size. On the contrary, the physical volume of the implant generally increases with increasing number of electrodes. Splitting the implant into two modules and placing only the essential circuits near the site of stimulation solves the aforementioned problem. However now the problem is redirected to the robustness and the safety of the interface joining these modules. A novel two-wire interface driving a 98 channel neurostimulator incorporating the split-architecture is presented. The stimulator is provided with both power and data by sending square current waveforms via the two-wire interface. The stimulator itself is fabricated using 0.35 mu m HVCMOS technology and occupies 4.9 x 4.9 mm(2) and requires no external decoupling capacitor.

引用

页码：6737 / 6740

页数：4