A high-density electrode array for a cochlear prosthesis
Document Type
Conference Proceeding
Publication Date
1-1-2003
Abstract
© 2003 IEEE. This paper reports a high-density cochlear electrode array integrated with an articulated backing device. Fabricated on a silicon substrate, the device offers stimulating sites on a pitch of 250 μm. The backing device is designed to facilitate a deeper cochlear insertion and position the sites closer to the targeted neural receptors. The device is the first step towards a high-density 128-site array integrated with closed-loop position-sensing and control. Monopolar and bipolar auditory thresholds in guinea pigs are 50 μA and 300 μA, respectively, with tissue compliance voltages at 500 μA of ∼1.0V. A 32-site four-channel active array designed as the forerunner of the 128-site array is also described.
Publication Title
TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers
Recommended Citation
Bhatti, P.,
Arcand, B.,
Wang, J.,
Butala, N.,
Friedrich, C.,
&
Wise, K.
(2003).
A high-density electrode array for a cochlear prosthesis.
TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers,
2, 1750-1753.
http://doi.org/10.1109/SENSOR.2003.1217124
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/10915