TY - GEN
T1 - Microfabricated needle-arrays for stimulation of tactile receptors
AU - Kitamura, Norihide
AU - Chim, Julien
AU - Miki, Norihisa
N1 - Funding Information:
This work was supported in part by JST PRESTO (Information Environment and Humans).
Publisher Copyright:
© Springer-Verlag Berlin Heidelberg 2014.
PY - 2014
Y1 - 2014
N2 - This paper describes electro tactile display with micro-needle electrodes. The electro tactile display can display the tactile sensations by stimulating tactile receptors with electric currents. Micro-needle electrodes can drastically decrease the electrical impedance because the needles can penetrate through the stratum corneum which has higher impedance than dermis. In addition, adjusted length of the needle allows us to stimulate the tactile receptors with no pain. The shape of micro-needle electrodes of an electro tactile display affects the tactile sensation. When the tip radius of the needle is too small, the impedance between finger and micro-needles becomes large due to the small contact area. On the other hand, when the needle tip has a large radius, the needle cannot go through the surface of fingers and the impedance does not decrease enough. In this work, we developed fabrication processes of a micro-needle array and an electrotactile display using the micro needle electrode array. We experimentally confirmed the superiority of needle electrode devices to flat devices and deduced the optimum shape of the microneedle electrodes for electro tactile display applications.
AB - This paper describes electro tactile display with micro-needle electrodes. The electro tactile display can display the tactile sensations by stimulating tactile receptors with electric currents. Micro-needle electrodes can drastically decrease the electrical impedance because the needles can penetrate through the stratum corneum which has higher impedance than dermis. In addition, adjusted length of the needle allows us to stimulate the tactile receptors with no pain. The shape of micro-needle electrodes of an electro tactile display affects the tactile sensation. When the tip radius of the needle is too small, the impedance between finger and micro-needles becomes large due to the small contact area. On the other hand, when the needle tip has a large radius, the needle cannot go through the surface of fingers and the impedance does not decrease enough. In this work, we developed fabrication processes of a micro-needle array and an electrotactile display using the micro needle electrode array. We experimentally confirmed the superiority of needle electrode devices to flat devices and deduced the optimum shape of the microneedle electrodes for electro tactile display applications.
KW - Electro tactile display
KW - Electrochemical etching
KW - Needle electrode
KW - Tactile sensation
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U2 - 10.1007/978-3-662-44193-0_69
DO - 10.1007/978-3-662-44193-0_69
M3 - Conference contribution
AN - SCOPUS:84910130283
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 552
EP - 558
BT - Haptics
A2 - Duriez, Christian
A2 - Duriez, Christian
A2 - Auvray, Malika
A2 - Auvray, Malika
PB - Springer Verlag
T2 - 9th International Conference on Haptics: Neuroscience, Devices, Modeling, and Applications, EuroHaptics 2014
Y2 - 24 June 2014 through 26 June 2014
ER -