A flexible micromachined electrode array for a cochlear prosthesis

被引：26

作者：

Bell, TE ^{[1
]}

Wise, KD ^{[1
]}

Anderson, DJ ^{[1
]}

机构：

[1] Univ Michigan, Dept Elect Engn & Comp Sci, Ctr Integrated Sensors & Circuits, Ann Arbor, MI 48109 USA

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 1998年 / 66卷 / 1-3期

关键词：

cochlear implants; auditory prostheses; neural stimulation; silicon microprobes;

D O I：

10.1016/S0924-4247(97)01717-2

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A micromachined silicon electrode array intended for use as a cochlear implant is reported. The flexible array is formed using a boron etch-stop for substrate definition and contains 22 IrO stimulating sites implemented on 750 mu m centers. The insertable portion of the array is 25 mm long and 320-640 mu m in width: the back end of the device provides interconnects to implanted current-generation circuitry. Device functionality has been verified through in vivo experiments and the associated evoked auditory brainstem responses al-e reported, thresholds for monopolar stimulation are less than 80 mu A. The integration of polysilicon strain gauges on the Lu-ray will permit monitoring of implant curvature within the cochlea, providing a resolution in substrate position of 60 mu m across the 500 mu m diameter cochlear canal. (C) 1998 Elsevier science S.A. All rights reserved.

引用

页码：63 / 69

页数：7

共 10 条

[1] BATCH-FABRICATED THIN-FILM ELECTRODES FOR STIMULATION OF THE CENTRAL AUDITORY-SYSTEM [J].

ANDERSON, DJ ;

NAJAFI, K ;

TANGHE, SJ ;

EVANS, DA ;

LEVY, KL ;

HETKE, JF ;

XUE, XL ;

ZAPPIA, JJ ;

WISE, KD .

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 1989, 36 (07) :693-704

[2]

HAMBRECHT FT, 1977, FUNCTIONAL ELECT STI

[3] SILICON RIBBON CABLES FOR CHRONICALLY IMPLANTABLE MICROELECTRODE ARRAYS [J].

HETKE, JF ;

LUND, JL ;

NAJAFI, K ;

WISE, KD ;

ANDERSON, DJ .

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 1994, 41 (04) :314-321

[4]

KIM C, 1996, IEEE J SOLID STATE C, V31

[5] A HIGH-YIELD IC-COMPATIBLE MULTICHANNEL RECORDING ARRAY [J].

NAJAFI, K ;

WISE, KD ;

MOCHIZUKI, T .

IEEE TRANSACTIONS ON ELECTRON DEVICES, 1985, 32 (07) :1206-1211

[6] STRENGTH CHARACTERIZATION OF SILICON MICROPROBES IN NEUROPHYSIOLOGICAL TISSUES [J].

NAJAFI, K ;

HETKE, JF .

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 1990, 37 (05) :474-481

[7] A 16-CHANNEL CMOS NEURAL STIMULATING ARRAY [J].

TANGHE, SJ ;

WISE, KD .

IEEE JOURNAL OF SOLID-STATE CIRCUITS, 1992, 27 (12) :1819-1825

[8] CHARACTERIZATION OF THE ELECTRICALLY EVOKED AUDITORY BRAIN-STEM RESPONSE (ABR) IN CATS AND HUMANS [J].

VANDENHONERT, C ;

STYPULKOWSKI, PH .

HEARING RESEARCH, 1986, 21 (02) :109-126

[9]

Wills L, 1986, Conn Med, V50, P293

[10]

1995, AM FAMILY PHYSICIAN, V52, P1574

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