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助听器类似于扩音器,主要由传声器、放大器、耳机或骨导器及电源组成,它将声音变成微弱的电信号,经放大器放大后传入耳机,传到人耳。助听器对于听力障碍或听力下降的患者,尤其是儿童与老年人,具有听觉训练和语言训练的作用。助听器的种类很多,有携带式、耳背式、耳道式、眼镜式等,其中以耳背式和耳道式最受欢迎。那么,怎样选配助听器才理想呢? 助听器并不是每一个聋人都能戴的,也不是随便买一个戴上就行。因为听力损失程度有轻有重,助听器的功能有大有小,因此对助听器选配方面就应审慎斟酌。一般来说,使用助听器的年龄并无限制,但对于儿童和老年人则尤为重要,而在听力损失程度上,却要认真选
Hearing aids, similar to loudspeakers, are mainly composed of microphones, amplifiers, earphones or osteoconductors and power supplies. They turn the sound into a weak electrical signal, amplified by the amplifier and then transmitted to the earphone and to the human ear. Hearing aids have hearing training and language training for people with hearing impairment or hearing loss, especially children and the elderly. Many types of hearing aids, portable, back of the ear, ear canal, glasses and so on, of which ear and ear style most popular. So, how to match the ideal hearing aids? Hearing aid is not every deaf can wear, nor is it easy to buy one to wear on the line. Because of the severity of hearing loss, the function of hearing aids is large and small, so discretion should be exercised over the selection of hearing aids. In general, there are no limitations on the age at which hearing aids are used, but they are especially important in children and the elderly, but they should be carefully selected for the degree of hearing loss