IEEE Transactions on Biomedical Engineering

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An Instrumented Cochlea Model for the Evaluation of Cochlear Implant Electrical Stimulus Spread
A 3D-printed physical cochlea model with integrated sensing wires is presented, to evaluate the stimulation current spread of a cochlear implant (CI) in a cochlea. These wires are independent from the stimulating electrodes of a CI. Therefore, the measured current spread signals are not influenced by electrode-electrolyte interface potential near the CI, which is an important issue for conventional measurements that causes missing information in current spread distribution in a cochlea. This physical cochlea model provides an objective platform for comparing different CIs, as well as different stimulation modes and configurations, thus potentially offering optimized setup for specific CI patients... Read more
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