Details
| Original language | English |
|---|---|
| Pages (from-to) | S1144-S1147 |
| Journal | Biomedizinische Technik |
| Volume | 59 |
| Publication status | Published - 1 Oct 2014 |
Abstract
Implantation is the method of choice for the treatment of individuals with congenital or acquired deafness. Impedance telemetry measurements are routinely performed to evaluate implant function. Changes in impedance can be an indication of intracochlear changes. In literature, increases in impedance have been associated with high-resolution stimulation strategies and platinum dissolution. In vitro experiments were performed to investigate in greater detail the electrochemical processes during the stimulation of cochlear implant electrode arrays. The platinum concentration of the stimulation medium was determined as part of this procedure. Inductively coupled plasma optical emission spectroscopy (ICP-OES) was used to verify an increase in the level of dissolved platinum in the electrolyte as stimulation proceeded, although no alterations of the electrode surface were detectable by scanning electron microscopy.
ASJC Scopus subject areas
- Engineering(all)
- Biomedical Engineering
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In: Biomedizinische Technik, Vol. 59, 01.10.2014, p. S1144-S1147.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Changes on a platinum electrode surface during acoustic stimulation of a cochlear implant-in vitro approach
AU - Durisin, M.
AU - Lenarz, T.
AU - Kanaan, N.
AU - Bach, F. W.
AU - Angrisani, G. L.
AU - Maier, H. J.
N1 - Publisher Copyright: © 2014 by Walter de Gruyter Berlin Boston.
PY - 2014/10/1
Y1 - 2014/10/1
N2 - Implantation is the method of choice for the treatment of individuals with congenital or acquired deafness. Impedance telemetry measurements are routinely performed to evaluate implant function. Changes in impedance can be an indication of intracochlear changes. In literature, increases in impedance have been associated with high-resolution stimulation strategies and platinum dissolution. In vitro experiments were performed to investigate in greater detail the electrochemical processes during the stimulation of cochlear implant electrode arrays. The platinum concentration of the stimulation medium was determined as part of this procedure. Inductively coupled plasma optical emission spectroscopy (ICP-OES) was used to verify an increase in the level of dissolved platinum in the electrolyte as stimulation proceeded, although no alterations of the electrode surface were detectable by scanning electron microscopy.
AB - Implantation is the method of choice for the treatment of individuals with congenital or acquired deafness. Impedance telemetry measurements are routinely performed to evaluate implant function. Changes in impedance can be an indication of intracochlear changes. In literature, increases in impedance have been associated with high-resolution stimulation strategies and platinum dissolution. In vitro experiments were performed to investigate in greater detail the electrochemical processes during the stimulation of cochlear implant electrode arrays. The platinum concentration of the stimulation medium was determined as part of this procedure. Inductively coupled plasma optical emission spectroscopy (ICP-OES) was used to verify an increase in the level of dissolved platinum in the electrolyte as stimulation proceeded, although no alterations of the electrode surface were detectable by scanning electron microscopy.
UR - http://www.scopus.com/inward/record.url?scp=84908157539&partnerID=8YFLogxK
U2 - 10.1515/bmt-2014-5014
DO - 10.1515/bmt-2014-5014
M3 - Article
AN - SCOPUS:84908157539
VL - 59
SP - S1144-S1147
JO - Biomedizinische Technik
JF - Biomedizinische Technik
SN - 0013-5585
ER -