Actuator based on excitation tympanic membrane and hearing aid device thereof
A hearing aid device and actuator technology, which is applied in the field of hearing aid devices and actuators for the treatment of hearing loss, and can solve problems such as difficult installation, failure to ensure ear canal fit, and easy ear plugging
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[0051] The present invention will be further described below in conjunction with the accompanying drawings.
[0052] Such as figure 1 It is a schematic diagram of the human ear structure, showing the cross sections of the outer ear 1 , the middle ear 2 and the inner ear 3 . Among them, the outer ear 1 mainly includes the auricle 4 and the ear canal 5; the middle ear 2 includes the tympanic membrane (eardrum) 6 and the ossicular chain. The ossicular chain consists of three tiny interconnected bones (ossicles), the malleus7, the incus8 and the stapes9. The malleus 7 is attached to the eardrum 6, while the stapes 9, the last bone in the ossicular chain, is coupled to the cochlea 10 of the inner ear. In the normal auditory system, the pinna 4 of the outer ear 1 collects pressure fluctuations in the external air, and transmits them to the tympanic membrane 6 through the ear canal 5, causing the vibration of the tympanic membrane 6 and the ossicular chain in the middle ear 2 syste...
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