For hearing-impaired patients, the types of hearing AIDS are also introduced. In fact, there are many reasons for hearing impairment, including sensorineural hearing impairment and conductive hearing impairment. The former is senile deafness, sudden deafness, noise-induced hearing loss and ototoxic hearing loss. The latter is otitis media, cholesteatoma, otosclerosis, atresia of ear canal, microtia and so on. There are several types of traditional air conduction hearing AIDS, including ear hanging type, in-ear type, ear canal type, mini ear canal type and deep ear canal type; However, these can not effectively solve all the hearing impairment problems, especially the normal conductive hearing impairment effect of internal auditory nerve is not as good as expected.
Therefore, another type of hearing aid-bone conduction hearing aid came into being. Early bone conduction hearing AIDS transmitted amplified sound through a vibrator, which must be placed on the mastoid behind the ear. Therefore, the most commonly used method is to use glasses frames or hair bands, but unfortunately, bone conduction hearing AIDS are bulky, so they are not commonly used at present.
Yadong Memorial Hospital introduced the latest BAHA (Bone Anchored Hearing Aid) produced by FDA of the United States through Sweden, and this product was approved by the Health Department of Taiwan Province Province this year. This product has been abroad for more than ten years, and more than 7000 people have implanted it. It doesn't have the disadvantages of traditional hearing AIDS, such as acoustic feedback and blocking effect of external auditory canal, so that patients don't often feel that listening to their own voice is too loud, or even can't hear their own breathing and heartbeat.
Many patients with nasopharyngeal carcinoma, chronic otitis media or radical mastoidectomy after radiotherapy often have wet or purulent ear canal. Such patients are not suitable for using traditional hearing AIDS, because the electronic components located in the ear canal are easily damaged and often need to be selected or even replaced. Therefore, satisfactory results can be obtained by using the new implantable bone conduction hearing aid.
In addition, for patients with unilateral hearing impairment caused by congenital or sudden deafness, because there is only one ear left, they can't distinguish the direction of the sound source, which leads to a lack of stereoscopic impression, which brings trouble to work or study and even inconvenience to daily life; This kind of patients can use the newly introduced implantable bone conduction hearing aid to introduce the sound of the affected side into the normal ear to cause stereo binaural hearing, and formally bid farewell to the monotonous mono era. The operation of implantable bone conduction hearing aid needs a complete evaluation, and whether it is suitable for wearing hearing aid actually varies from person to person. There is no single standard, which needs to be considered in many aspects. If you feel that your hearing problems lead to communication barriers, you might as well go to the hospital for a hearing test. I believe that modern high technology will create a more colorful life for you.