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ISSCC 2008Session 7 · TD: ELECTRONICS FOR LIFE SCIENCESOther

A 1600-pixel Subretinal Chip with DC-free Terminals and ±2V Supply Optimized for Long Lifetime and High Stimulation Efficiency

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📋 论文概要

本文设计了一款1600像素的视网膜下植入芯片,利用眼睛自然光学系统帮助盲人恢复视觉感知。该芯片采用无直流端子和±2V供电设计,解决了植入空间有限的问题,并优化了长寿命和高刺激效率。

💡 主要创新点

重要性
发表年份
ISSCC 2008

🏷 关键词

视网膜下芯片视觉假体无直流端子刺激效率低功耗

📄 原文摘要

implants are developed to restore visual perception in blind patients. The retina can be stimulated from either side (epiretinal [1] or subretinal [2,3]). With a subretinal light sensitive chip, the natural optical system of the eye is still used, allowing the patient to intuitively locate objects. Figure 7.5.1 shows a blind patient grabbing for a plate by means of such a chip. The patient was 1 out of 7, who have been implanted in a clinical study in 2006 in Tuebingen, Germany [4]. The space beneath the retina is limited. Either just an electrode array is placed there [2], or a silicon chip thinned to about 70μm, or both (Fig. 7.5.1). The experiments [4] used a device including a light-sensitive CMOS chip and separate direct stimulation electrodes. The device was connected

👥 作者与机构

Albrecht Rothermel1, Volker Wieczorek1, Liu Liu1, Alfred Stett2,

Matthias Gerhardt2, Alex Harscher3, Steffen Kibbel3 1 University of Ulm, Ulm, Germany NMI, Reutlingen, Germany 3 Retina Implant, Reutlingen, Germany 2 Retinal

分类:Other · 年份:ISSCC 2008