18.2 A fully-implantable cochlear implant SoC with piezoelectric middle-ear sensor and energy-efficient stimulation in 0.18μm HVCMOS
18.2 A fully-implantable cochlear implant SoC with piezoelectric middle-ear sensor and energy-efficient stimulation in 0.18μm HVCMOS
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18.2 具有压电中耳传感器和 0.18μm HVCMOS 节能刺激的完全植入式人工耳蜗 SoC
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
A. Chandrakasan
中科院分区：
文献类型：
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作者：
Marcus Yip;Rui Jin;H. Nakajima;K. Stankovic;A. Chandrakasan
人工耳蜗（CI）是一种电力刺激听觉神经以恢复听力损失严重的听力的装置。常规的独联体依靠包括麦克风和声音处理器的外部单元来拾取和编码声音。外部单位引起了人们对社会污名的担忧，并在淋浴间或水上运动中限制了使用情况，激发了需要完全植入（即无形的）人工耳蜗植入物（FICI）的需求。植入系统的能源存储能力有限，需要低功率（<; 1MW总功率）声音处理和听觉神经刺激，以使植入电池的操作每天只能无线充电一次。最近的最先进的IC通常是针对基于麦克风的顺式设计的，并且不需要神经刺激器在同一芯片上[1]。先前的植入声传感器（例如加速度计）感觉到中耳的声音诱导的振动，但是这种方法具有有限的灵敏度，并且需要对传感器本身的几兆瓦[2]。
A cochlear implant (CI) is a device that electrically stimulates the auditory nerve to restore hearing in people with profound hearing loss. Conventional CIs rely on an external unit comprising a microphone and sound processor to pick up and encode sound. The external unit raises concerns with social stigma and limits usage in the shower or during water sports, motivating the need for a fully-implantable (i.e., invisible) cochlear implant (FICI). The limited energy storage capacity of the implanted system requires low-power (<;1mW total power) sound processing and auditory nerve stimulation to enable operation from an implanted battery that is wirelessly recharged only once daily. Recent state-of-the-art ICs are typically designed for external microphone-based CIs and do not require the neural stimulator to be on the same chip [1]. Prior implantable acoustic sensors such as accelerometers sense the sound-induced vibration of the middle ear, but this approach has limited sensitivity and requires several mW of power for the sensor itself [2].
DOI：
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发表时间：
2007
期刊：
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影响因子：
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作者：
Darren M. Whiten
通讯作者：
Darren M. Whiten