Do you know the ear model is very important?

As an important accessory of the behind-the-ear hearing aid, the ear mold is responsible for transmitting the output sound signal from the hearing aid of the hearing aid to the external auditory canal and the tympanic membrane. It is known as “the hearing aid companion”,so it’s very important.

1. It is very important to fix the hearing aid
   The behind-the-ear hearing aids can also be used with earplugs of different sizes to fit the ear canal of the patient, but the comfort and stability of the earplugs are poor, so the fixation and acoustic effects of the hearing aid are disadvantageous.
   The ear mold is completely made according to the physiological structure of various parts of the outer ear. Different acoustic effects such as vent holes, dampers and horn sound tubes can be made according to the needs; it is a part of the complete hearing aid system, its quality and design. Directly affect the use of hearing aids

2, very important for the transmission of hearing aids.
The sealing function of the ear mold mainly depends on the tragus and the portion between the first bend and the second bend, so this part must be intact and intact when the ear sample is prepared.
If the sealing of the ear mold is not enough, when the volume of the hearing aid is loud, the output sound of the hearing aid is leaked through the external auditory canal, and then picked up by the microphone and into the hearing aid for secondary amplification, so that the sound feedback occurs after repeated amplification. Phenomenon, causing discomfort to the user.

 3, the correction of acoustic characteristics after hearing aid is very important.
The length of the sound hole of the ear mold, the diameter of the sound hole opening, the size of the vent hole, etc. all directly affect the acoustic performance of the sound transmission process.
Therefore, by correcting the shape and size of the ear channel of the ear mode, the acoustic characteristics of the hearing aid can be compensated to some extent, and the sound quality after the hearing aid is further improved.