What should I do if my hearing aids are worn for half a year and still feel blocked?

c. There is not enough space for custom machine shells or custom ear molds to make large vents.

Wear RIC type/open ear typeHearing aid—Open earplugs with many vents can be used, and the texture of the earplugs is softer, the vibration energy of the cartilage of the ear canal can be released well, the plugging effect is reduced, and the comfort is high.

      In addition, it should be noted that the plugging effect will be very different between different shapes of ear canals.The angle between the first bend and the second bend of the ear canal may be relatively straight or sharp.It can be seen on some ear impressions that the first bend of the ear canal is relatively long or oblique. The ear molds and in-ear hearing aids with these special shapes will completely seal the ear canal and form a closed mechanical system with the vibrating wall of the external ear canal. .This will increase the plugging effect, because the hearing aid itself will vibrate along with the sound waves, which is equivalent to a vibrating membrane that emits sound directly to the eardrum.If the ear canal is relatively straight, this kind of phenomenon will occur less frequently.If it is found that the hearing aid protrudes outwards with the pronunciation, the hearing aid housing needs to be polished to reduce the shape matching with the external auditory canal and reduce the ear plug effect.

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REF: Hearing aids ChinaHearing amplifierHearing Loss
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