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Cochlear Implant System

Cochlear ImplantCochlear-Implant

These days many people suffer from mild-to-moderate hearing loss problem and hearing aids have become a practical solution for improving the problem of hearing. Cochlear implant system is designed for people who cannot are not able to benefit from hearing aids. It is an electronic device which stimulates the auditory nerve with electric signals which the brain can understand as sound. Cochlear implants are considered the only machinery available to functionally re-establish one of the five senses. In contrast to hearing aids, which intensify sound, these electronic devices bypass the damaged part of the inner so that person can hear it best. People who have cochlear implant are hear clearly in noisy environment, enjoy music and reconnect with friends and family.


(Pre and Post-Operative Assessments/ Mapping/ Habilitation)pre-and-post

The cochlear implant is an electronic device that can be considered for people with profound sensorineural hearing loss in both ears. The implant bypasses the diseased or non-functioning inner ear hair cells by converting the sounds we hear to electronic impulses that directly stimulate the inner ear nerve endings.

The cochlear implant system consists of: an external part made up of a microphone, a sound processor and transmitting coil an internal part – cochlear implant that must be surgically implanted made up of a internal coil, a receiver stimulator and multiple electrode arrays.

Hearing Aids

(Instrument Assessment/ Selection/ Fitting) Types:

Completely in the canal (CIC)

many people like to go for completely in the canal (CIC) hearing aids as they are practically invisible and nobody would know that they are using a hearing aid. These are fairly protected from winds, person can talk normally on phone and also keep the ear quite ventilated and the occlusion effect is compact due as its located deep in the canal.

In the canal (ITC)

These are developed for people who are suffering mild to severe hearing loss. In the canal (ITC) can be custom made and has various technical level choices which formerly required a larger aid. Moreover, these are one of the smallest style and are set inside the ear canal but not much deeper.

Behind the ear (BTE)

Behind-The-Ear (BTE) hearing aids are used when there is hearing loss from mild to profound. These are available in various styles as per the requirements. Behind the ear hearing aids offer numerous directional microphone systems for enhanced perception of speech in noisy locations.

Open fit

Open fit hearing aids are same as behind-the-ear (BTE) hearing aids. These are much smaller and the best part of this hearing aid is that you can intensify only the high tones and keep the ear ventilated and will save you from the occlusion effect. These are also beneficial for people with an increased wax buildup as the hearing aid is outside the ear, the ear wax won’t be able to do any harm.


 (Fitting/ Programming)

The Bone Anchored Hearing Aid (BAHA)is a surgically implanted system which works

The Bone Anchored Hearing Aid (BAHA)is a surgically implanted system

through direct bone transmission. This means that the implant itself vibrates within the skull and inner ear. This stimulates the nerve fibers of the inner ear and allows hearing. The BAHA is best suited for people who have conductive hearing loss like chronic ear infections, obstruction of the ear canal, and single sided deafness.

The BAHA is made up of three parts: a titanium implant, a small external portion, and a sound processer. By having this set up the sound is able to bypass the external auditory canal and middle ear and enter into the inner ear. This means that people who have issues with the structure of the ear, or people with chronic ear infections, will not have to have anything obstructing the opening of the ear.

Also for those who have single sided deafness the apparatus is placed on the side with the non-hearing ear which then transfers sound through the bone which stimulates the cochlea of the normal hearing ear. This transmission of sound from the bad side to the normal ear results in a sensation of hearing from the deaf ear. This benefits the hard of hearing person because stereo sound is achieved. Stereo sound causes a better understanding of speech and also causes the hard of hearing person to be able distinguishing between background noise and the noise they need to focus on.

Middle Ear Implant

Middle Ear Implantmiddle-ear

The Middle Ear Implant is a newer technology approved by the FDA in 2002. After this time it has been seen by many as a strong aid in achieving better hearing. The Middle Ear implant consists of an internal device, which is surgically implanted and also there is an external component which is called the Audio Processor. The external piece is worn behind the ear and there are no visible wires.

The Middle Ear Implant works by picking up sound, by the external processer, and transferring it across the skin electromagnetically to the implanted receiver. The receiver then transmits the signal to the implant which creates vibrations in the ear and copies the function of a normal ear. This vibration is then sent to the cochlea which in turn is sends the signal to the brain for interpretation. Since the implant bypasses the middle ear, sound goes directly into the cochlea therefore avoiding problems with reduced sound.

Auditory Brainstem Implant (ABI)

(Pre and Post Operative Assessments (TTEABR)/ Mapping/ Habilitation)Auditory-Brainstem

An Auditory Brainstem Implant (ABI) is a modified cochlear implant intended to be used to stimulate the cochlear nucleus in the brainstem of patients who have had their eighth nerves severed during surgery for removal of bilateral neurofibromata, as in patients with Neurofibromatosis 2 (NF2).

The cochlear implant linear array of electrode contacts is replaced by a small rectangular silastic paddle containing the 21 contacts. This is surgically inserted into the lateral recess of the fourth ventricle. The need for this device is much less common than that for a cochlear implant, but these patients are typically totally deaf and, although the benefit is not as great on the average as that of the cochlear implant, most recipients derive significant auditory perception.

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