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Journal articles on the topic 'Fully implantable cochlear implant (FICI)'

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1

Zhao, Chuming, Katherine E. Knisely, Deborah J. Colesa, Bryan E. Pfingst, Yehoash Raphael, and Karl Grosh. "Intracochlear sound sensor-electrode system for fully implantable cochlear implant." Journal of the Acoustical Society of America 140, no. 4 (2016): 3377. http://dx.doi.org/10.1121/1.4970801.

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2

Yigit, H. Andac, Hasan Ulusan, Mert Koc, M. Berat Yuksel, Salar Chamanian, and Haluk Kulah. "Single Supply PWM Fully Implantable Cochlear Implant Interface Circuit With Active Charge Balancing." IEEE Access 9 (2021): 52642–53. http://dx.doi.org/10.1109/access.2021.3070107.

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3

Creighton, Francis (Pete) X., Xiying Guan, Steve Park, Ioannis (John) Kymissis, Hideko Heidi Nakajima, and Elizabeth S. Olson. "An Intracochlear Pressure Sensor as a Microphone for a Fully Implantable Cochlear Implant." Otology & Neurotology 37, no. 10 (2016): 1596–600. http://dx.doi.org/10.1097/mao.0000000000001209.

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4

Ulusan, Hasan, Salar Chamanian, Bedirhan Ilik, Ali Muhtaroglu, and Haluk Kulah. "Fully Implantable Cochlear Implant Interface Electronics With 51.2-$\mu$ W Front-End Circuit." IEEE Transactions on Very Large Scale Integration (VLSI) Systems 27, no. 7 (2019): 1504–12. http://dx.doi.org/10.1109/tvlsi.2019.2898873.

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5

Yip, Marcus, Rui Jin, Hideko Heidi Nakajima, Konstantina M. Stankovic, and Anantha P. Chandrakasan. "A Fully-Implantable Cochlear Implant SoC With Piezoelectric Middle-Ear Sensor and Arbitrary Waveform Neural Stimulation." IEEE Journal of Solid-State Circuits 50, no. 1 (2015): 214–29. http://dx.doi.org/10.1109/jssc.2014.2355822.

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6

Lefebvre, Philippe P., Javier Gisbert, Domenico Cuda, Stéphane Tringali, and Arnaud Deveze. "A Retrospective Multicentre Cohort Review of Patient Characteristics and Surgical Aspects versus the Long-Term Outcomes for Recipients of a Fully Implantable Active Middle Ear Implant." Audiology and Neurotology 21, no. 5 (2016): 333–45. http://dx.doi.org/10.1159/000454666.

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Objective: To summarise treatment outcomes compared to surgical and patient variables for a multicentre recipient cohort using a fully implantable active middle ear implant for hearing impairment. To describe the authors' preferred surgical technique to determine microphone placement. Study Design: Multicentre retrospective, observational survey. Setting: Five tertiary referral centres. Patients: Carina recipients (66 ears, 62 subjects) using the current Cochlear® Carina® System or the legacy device, the Otologics® Fully Implantable Middle Ear, with a T2 transducer. Methods: Patient file revie
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7

Clark, Graeme M. "The multiple-channel cochlear implant: the interface between sound and the central nervous system for hearing, speech, and language in deaf people—a personal perspective." Philosophical Transactions of the Royal Society B: Biological Sciences 361, no. 1469 (2006): 791–810. http://dx.doi.org/10.1098/rstb.2005.1782.

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The multiple-channel cochlear implant is the first sensori-neural prosthesis to effectively and safely bring electronic technology into a direct physiological relation with the central nervous system and human consciousness, and to give speech perception to severely-profoundly deaf people and spoken language to children. Research showed that the place and temporal coding of sound frequencies could be partly replicated by multiple-channel stimulation of the auditory nerve. This required safety studies on how to prevent the effects to the cochlea of trauma, electrical stimuli, biomaterials and m
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8

Gronsky, R. "The Impact of Imaging Technologies in Materials Engineering." Proceedings, annual meeting, Electron Microscopy Society of America 54 (August 11, 1996): 6–7. http://dx.doi.org/10.1017/s0424820100162491.

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Materials Engineering is widely acknowledged as a “hyper-discipline” spanning the fundamental sciences (Physics, Chemistry and Biology) with all of the traditional engineering pursuits (Civil, Electrical, Mechanical, Metallurgical, Nuclear…). A healthy materials engineering program in fapt demands interaction among basic science and technology, all classes of materials, and the intrinsic elements of the field, parochially known as properties, performance, structure (including composition) and synthesis (including processing). Advanced characterization techniques are obviously critical to this
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9

Török, Tímea Nóra, László Pósa, Dániel Molnár, et al. "Információfeldolgozás nanoskálájú memrisztív eszközökkel." Scientia et Securitas 4, no. 4 (2024): 312–20. http://dx.doi.org/10.1556/112.2023.00179.

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Összefoglalás. Napjainkra az információs technológiák fejlődése elérte azt a szintet, ahol a gyorsuló ütemben létrejövő adattömeg feldolgozásához már sok esetben elégtelenek a klasszikus, Neumann-elvek alapján működő számítógépek. A jelenség újszerű szoftveres megoldások, biológiai ihletésű algoritmusok, neurális hálózatok elterjedéséhez vezetett, ám ezek hatékony alkalmazásához teljesen új hardveres megoldások szükségesek. Jelen kézirat ilyen újszerű architektúrákhoz fejlesztett, Si-mikrochip-alapú memóriatulajdonsággal rendelkező nanoméretű áramköri elemek kísérleti eredményeit mutatja be, i
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10

Yiğit, Halil Andaç, Hasan Uluşan, Mert Koç, Muhammed Berat Yüksel, Salar Chamanian, and Haluk Külah. "Single Supply PWM Fully Implantable Cochlear Implant Interface Circuit With Active Charge Balancing." March 31, 2021. https://doi.org/10.1109/ACCESS.2021.3070107.

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Low powered fully implantable cochlear implants (FICIs) untangle the aesthetic concerns and battery replacement problems of conventional cochlear implants. However, the reported FICIs lack proper charge balancing and require multiple external supplies to operate. In this work, a complete low power FICI interface circuit is designed that operates with a single supply and uses short-pulse-injection method for charge balancing. The system takes input from multi-channel piezoelectric transducers and stimulates the auditory neurons with pulse width modulated (PWM) output currents. By utilizing puls
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11

Ilik, Bedirhan, Aziz Koyuncuoğlu, Özlem Şardan-Sukas, and Haluk Külah. "Thin film piezoelectric acoustic transducer for fully implantable cochlear implants." July 19, 2018. https://doi.org/10.1016/j.sna.2018.07.020.

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This paper reports the development of a single cantilever thin film PLD-PZT transducer prototype. The device was experimentally characterized by attaching it on an acoustically vibrating membrane resem- bling the behavior of the eardrum. Acceleration characteristic of the sensor attached on the membrane was obtained by using a Laser Doppler Vibrometer (LDV) as the output voltage was measured by an oscil- loscope. A voltage output of 114 mV was obtained, when the device was excited at 110 dB Sound Pressure Level (SPL) at 1325 Hz. This is the highest value for a thin film piezoelectric transduce
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12

Uluşan, Hasan, Salar Chamanian, Bedirhan İlik, Ali Muhtaroğlu та Haluk Külah. "Fully Implantable Cochlear Implant Interface Electronics With 51.2- μ W Front-End Circuit". 23 квітня 2019. https://doi.org/10.1109/tvlsi.2019.2898873.

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This paper presents an ultralow power interface circuit for a fully implantable cochlear implant (FICI) system that stimulates the auditory nerves inside cochlea. The input sound is detected with a multifrequency piezoelectric (PZT) sensor array, is signal-processed through a front-end circuit module, and is delivered to the nerves through current stimulation in proportion to the sound level. The front-end unit reduces the power dissipation by combining amplification and compression of the sensor output through an ultralow power logarithmic amplifier. The amplified signal is envelope detected,
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13

Yüksel, Muhammed Berat, Ali Can Atik, and Haluk Külah. "Piezoelectric Multi‐Channel Bilayer Transducer for Sensing and Filtering Ossicular Vibration." Advanced Science, February 21, 2024. http://dx.doi.org/10.1002/advs.202308277.

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AbstractThis paper presents an acoustic transducer for fully implantable cochlear implants (FICIs), which can be implanted on the hearing chain to detect and filter the ambient sound in eight frequency bands between 250 and 6000 Hz. The transducer dimensions are conventional surgery compatible. The structure is formed with 3 × 3 × 0.36 mm active space for each layer and 5.2 mg total active mass excluding packaging. Characterization of the transducer is carried on an artificial membrane whose vibration characteristic is similar to the umbo vibration. On the artificial membrane, piezoelectric tr
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14

Uluşan, Hasan, M. Berat Yüksel, Özlem Topçu, et al. "A full-custom fully implantable cochlear implant system validated in vivo with an animal model." Communications Engineering 3, no. 1 (2024). http://dx.doi.org/10.1038/s44172-024-00275-4.

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15

Pirim, Feyza, Ali Can Atik, Muhammed Berat Yüksel, et al. "Multichannel multimodal piezoelectric middle ear implant concept based on MEMS technology for next-generation fully implantable cochlear implant applications." Biosensors and Bioelectronics: X, March 2024, 100471. http://dx.doi.org/10.1016/j.biosx.2024.100471.

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16

Kaulitz, Stefan, Carolina Köstler, Kristen Rak, Rudolf Hagen, Stephan Hackenberg, and Mario Cebulla. "The floating mass transducer as a microphone—a pilot study." HNO, June 3, 2025. https://doi.org/10.1007/s00106-025-01597-1.

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Abstract Background This study investigates the inverse use of the Vibrant Soundbridge® Floating Mass Transducer (FMT; MED-EL, Innsbruck, Austria) as a microphone in a pilot test. Should this be applicable, it would open up interesting application possibilities, e.g., as a microphone for a fully implantable cochlear implant. Materials and methods Experimental measurements on an ear canal–eardrum model were used to analyze the acoustic properties of the FMT when used as a microphone, including frequency response and sensitivity. The FMT from the Direct Drive Simulation Set was coupled to the ar
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17

Yüksel, Muhammed Berat, Aziz Koyuncuoğlu, and Haluk Külah. "Thin-Film PZT-Based Multi-Channel Acoustic MEMS Transducer for Cochlear Implant Applications." November 25, 2021. https://doi.org/10.1109/jsen.2021.3130953.

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This paper presents a multi-channel acoustic transducer that works within the audible frequency range (250-5500 Hz) and mimics the operation of the cochlea by filtering incoming sound. The transducer is composed of eight thin film piezoelectric cantilever beams with different resonance frequencies. The transducer is well suited to be implanted in middle ear cavity with an active volume of 5 mm ×5 mm ×0.62 mm and mass of 4.8 mg. Resonance frequencies and piezoelectric outputs of the beams are modeled with Finite Element Method (FEM). Vibration experiments showed
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18

Uluşan, Hasan, Ali Muhtaroğlu та Haluk Külah. "A Sub-500 μ W Interface Electronics for Bionic Ears". 12 вересня 2019. https://doi.org/10.1109/access.2019.2940744.

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This paper presents an ultra-low power current-mode circuit for a bionic ear interface. Piezoelectric (PZT) sensors at the system input transduce sound vibrations into multi-channel electrical signals, which are then processed by the proposed circuit to stimulate the auditory nerves consistently with the input amplitude level. The sensor outputs are first amplified and range-compressed through ultra-low power logarithmic amplifiers (LAs) into AC current waveforms, which are then rectified through custom current-mode circuits. The envelopes of the rectified signals are extracted, and are select
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