Investigation of intracochlear dual actuator stimulation in a scaled test rig

Wouter J. van Drunen 1 , Sarra Kacha Lachheb 2 , Anatoly Glukhovskoy 3 , Jens Twiefel 2 , Marc C. Wurz 3 , Thomas Lenarz 1 , Thomas S. Rau 1 ,  and Omid Majdani 1
  • 1 Cluster of Excellence Hearing4all, Department of Otolaryngology, Hannover Medical University, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
  • 2 Institute of Dynamics and Vibration Research, Leibniz Universität Hannover, Appelstraße 11, 30167 Hannover, Germany
  • 3 Institute of Micro Production Technology, Leibniz Universität Hannover, An der Universität 2, 30823 Garbsen, Germany


For patients suffering from profound hearing loss or deafness still having respectable residual hearing in the low frequency range, the combination of a hearing aid with a cochlear implant results in the best quality of hearing perception (EAS – electric acoustic stimulation). In order to optimize EAS, ongoing research focusses on the integration of these stimuli in a single implant device. Within this study, the performance of piezoelectric actuators, particularly the dual actuator stimulation, in a scaled uncoiled test rig was investigated.

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Current Directions in Biomedical Engineering is an open access journal and closely related to the journal Biomedical Engineering - Biomedizinische Technik. CDBME is a forum for the exchange of knowledge in the fields of biomedical engineering, medical information technology and biotechnology/bioengineering for medicine and addresses engineers, natural scientists, and clinicians working in research, industry, or clinical practice.