Efficient Bone Conduction Hearing Device With a Novel Piezoelectric Transducer Using Skin as an Electrode
Efficient Bone Conduction Hearing Device With a Novel Piezoelectric Transducer Using Skin as an Electrode
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采用皮肤作为电极的新型压电换能器的高效骨传导听力装置
DOI：
10.1109/tbme.2022.3168229
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发表时间：
2022
影响因子：
4.6
通讯作者：
Yamamoto Norio
中科院分区：
文献类型：
--
作者：
Furuta Ichiro;Ogita Hideaki;Iguchi Fukuichiro;Okano Takayuki;Yamahara Kohei;Namatsu Tatsuya;Kawata Shuichi;Omori Koichi;Yamamoto Norio
骨导助听器是唯一用于传导性听力损失的非手术设备。然而，它们对于终身使用是不切实际的，因为它们需要换能器与头部皮肤紧密接触，导致皮肤侵蚀和不适。骨传导听力植入物和有源中耳植入物不存在这些问题;然而，它们需要手术，有时会导致设备周围皮肤出现问题。本研究旨在开发一种新的骨传导听力设备，不施加压力的皮肤上或需要surgery.MethodsOur设备修改的压电元件，通过使用皮肤的耳廓作为一个传统的压电设备的两个电极之一。我们比较了一个扬声器，传统的压电设备，或新设备的声音传输到豚鼠耳蜗，生理声换能器的听觉神经，在正常和空气传导性听力损失conditions.ResultsThe新设备传输声音到耳蜗，即使在造成空气传导性听力损失。它的骨传导是更有效的扬声器和传统的压电device.ConclusionWe开发了一种新型的骨传导设备，有效地传输声音到耳蜗跳过外耳道，鼓膜，中耳小骨。这种设备不会对皮肤施加压力，从而导致皮肤损伤，这是传统骨导助听器的不利影响。
ObjectiveBone conduction hearing aids are the only non-surgical devices used for conductive hearing loss. However, they are impractical for lifelong use since they require close contact of the transducer with the head skin, causing skin erosion and discomfort. Bone conduction hearing implants and active middle ear implants do not present these issues; however, they require surgery and can sometimes cause issues in the skin surrounding the devices. This study aimed to develop a new bone conduction hearing device that does not exert pressure on the skin or require surgery.MethodsOur device modified a piezoelectric element by using the skin of a pinna as one of the two electrodes of a conventional piezoelectric device. We compared the sound transmission of a speaker, a conventional piezoelectric device, or the new device to the Guinea pig cochlea, a physiological sound transducer to the auditory nerve, in normal and air-conductive hearing loss conditions.ResultsThe novel device transmitted sound to the cochlea even after causing air-conductive hearing loss. Its bone conduction was more efficient than the speaker and the conventional piezoelectric device.ConclusionWe developed a novel type of bone conduction device that efficiently transmits sound to the cochlea by skipping the external auditory canal, tympanic membrane, and middle ear ossicles. This device does not exert pressure on the skin that can result in skin damage, an adverse effect of a conventional bone conduction hearing aid.SignificanceOur novel hearing device can be used as a substitute for current bone-conduction hearing devices.