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Hearing Aid

A device used to help Hard-of-Hearing people hear sounds.

Now, however, the most common style is a small Electronic device that fits into the wearer's Ear.

Cutting-edge technology allows for small and stylish they can be mistaken for wireless headsets.

Now available with digital sound quility, Bluetooth techonology, Datalearning, Remote control, automatic learning, autometically adjust to enviournment.

Types of hearing aids

There are many types of hearing aids, which vary in size, power and Circuitry. Among the different sizes and models are:

Body worn aids

This was the first type of hearing aid, and thanks to developments in technology they are now rarely used.

Body worn aids are capable of large amounts of amplification and were once used for profound hearing losses. Today, they have largely been replaced by BTEs

Behind the ear aids (BTE)

BTE aids have a small plastic case that fits behind the ear.BTEs can be used for mild to profound hearing losses. Recent innovations in BTEs include miniature computerized, digital, invisible, and waterproof BTEs with thin hair-like sound tubes.

In the ear aids (ITE)

ITE hearing aids are custom made to fit each individual's ear. They can be used in mild to severe hearing losses.


ITC/MIC aids are smaller, filling only the bottom half of the external ear. You usually cannot see very much of this hearing aid when you are face to face with someone. MIC and CICs are usually not recommended if you have good low frequency hearing as the "plugged up effect" may make your voice resonate (the "occlusion effect").

Completely in the canal aids (CIC)

CIC aids are even smaller and often not visible unless you look directly into the wearer's ear. These aids can be used for mild to severe losses.

Open-fit devices

Recently a new device has come on the market, the "Open-fit" or "Over-the-Ear" OTE Hearing Aid.

These devices are designed to reduce the "occlusion effect", which is the amplification of your own voice when your ears are plugged up (try sticking your fingers in your ears and talking).

It is almost invisible.

Bone Anchored Hearing Aids (BAHA)

The BAHA is a surgically implanted system that uses bone transmission as a pathway for sound to travel to the inner ear.

A titanium "post" is surgically embedded into the skull with a small abutment exposed outside the skin.

A sound processor sits on this abutment and transmits sound vibrations to the external abutment of the titanium implant.

Bone anchored hearing aids are however some of the most expensive of any kind of aid.

New Open Fit Invisible Hearing Aid

Almost invisible and perfect sound quality, integrated Bluetooth, 100% digital haring aid.

Esteem hearing implant

Almost invisible and perfect sound quality, integrated Bluetooth, 100% digital haring aid.

Hearing aid technology

  • Completely invisible
  • Uses the body's natural anatomy to provide optimal hearing
  • Esteem-Hearing ImplantT is not affected by acoustic feedback
  • The device allows patients to live normal active lifestyles
  • No occlusion effect (nothing in the ear)
  • No maintenance or batteries for up to four years

Wireless (F.M.System)

Recent hearing aids include wireless hearing aids.
FM listening systems are now emerging with wireless receivers integrated with the use of hearing aids and cochlear implant.

The voice is transmitted wirelessly to the hearing aids or cochlear implant reducing the effects of distance and background noise.

Many theatres and lecture halls are now equipped with assistive listening systems that transmit the sound directly from the stage; audience members can borrow suitable receivers and hear the program without background noise

Digital / Programmable:

Audiologist programs the hearing aids with a computer and can adjust the sound quality and response time on an individual basis.

Digital hearing aids can be specially programmed with multiple programs for quiet situations, background noise reduction, music listening, and directionality.

It has computer chip integrated.

Hearing aid price

Hearing aids are often advertised at widely varying prices, from 2400 Rs to 1, 90,000 Rs per hearing aid.

A major factor contributing to the wide variance in price is the number and complexity of hearing aids available.

What happens in hearing loss?

*When the auditory cortex of the brain does not receive input/stimulation.

This part of the brain may start to lose cells, and the ability to process sound.

This is most common with more severe hearing losses.

Although this cell loss is worse in severe hearing loss,

It is seen in all amounts of hearing loss and is caused by sensory deprivation.

*Damage to the hair cells of the inner ear result in sensorineural hearing loss.

When these hair cells are damaged, a person loses some ability to discriminate between sounds.

This will likely cause decreased ability to understand speech.

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