| Summary: | 碩士 === 義守大學 === 電機工程學系 === 91 === ABSTRACT
A prosthetic device, called the cochlear implant, can be implanted in the inner ear and can restore partial hearing to profoundly deaf people. According to the clinical data, the effect is vary different from individual. Therefore, improved efficacy to cochlear implant is such a important work. There are two ways can ameliorate the situation. One is to find the new stimulation strategy, the other is to design new electrode dimension over again. When new stimulation strategy or new electrode be developed. Apply to patient is only way to distinguish weather the new design fine or inferior. We are going to find some method called modeling evoked compound action potential in cochlear implant that we can know the performance on new design without any surgery. Currently there is no easy ways to model evoked compound action potential (EAP) of the auditory nerve fibers. This thesis presents a method to model the EAP using finite element method, Schwarz-Eikhof nerve fiber model, and equivalent circuit models on a 3D cochlea model. The simulation results are validated by EAP measured in cochlear implant users.
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