Wireless data transmission for medical implants with fully digital non-coherent detection

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Tezin Türü: Yüksek Lisans

Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Mühendislik Fakültesi, Elektrik ve Elektronik Mühendisliği Bölümü, Türkiye

Tezin Onay Tarihi: 2021

Tezin Dili: İngilizce

Öğrenci: MERT DOĞAN

Danışman: Haluk Külah

Özet:

Number of people awaiting therapeutic devices and implants increase with the increase in population. Cochlear implants are one of these implants which aid patients with sensorineural hearing loss. Conventional cochlear implants consist of two distinct parts inside and outside of the ear. Communication in between these parts is conducted wirelessly. In fully implantable cochlear implants, there is no operational outside block. Hence, in order to interact with all the blocks, wireless data transfer should be used in an extensive manner. In this thesis, a bidirectional wireless data transfer system for fully implantable cochlear implants utilizing inductive coupling with Binary Phase Shift Keying is designed. In addition to system being designed to be primarily used for patient fitting application, magnet-free system can also transfer data and carrier with BERs of 3x10-3 in worst coupling conditions, bidirectionally. The patient fitting processor has less than 1 bit error for each fitting cycle. With fully digital non-coherent detection, implanted structure consumes 47.1 µW power without power amplifiers.