Types of Surgery For The Cochlear Implant

The Cochlear Implant, Also Known as a Neural Recording Device

It is a surgically placed neural prosthetic that gives a deaf person a modified sense of hearing. CI (controlled auditory neural) implants replace the normal mechanical hearing mechanism to substitute it with electrical signals that directly run through the auditory nerve to the inner ear. A CI implant serves as a conductor that delivers the hearing signals to the cochlea. It does not have any electrical power source and operates via the transmission of information between the two sides of the cochlea, and from there to the brain.

5 Important things are defined about for cochlear implant.

  • Wear a Hearing Aid
  • Controlled Auditory Neural
  • Types of Cochlear Implants
  • Sensorineural Transducers
  • Surgery and Problems

1.Wear a Hearing Aid

Most people who wear a hearing aid would be surprised to find out that their cochlear implant works even when they can’t hear the sounds outside. This is because the signals are run directly to the inner ear where they are picked up by the sensory cells. When they detect the sounds, the signals trigger the motor neurons in the inner ear that send a signal to the brain for interpretation. The signal then triggers a set of commands that move the cochlea to produce an electrical current. Since this electrical current only reaches the cochlea when there is an audible sound present, the wearer experiences hearing loss. Therefore, the hearing aid is serving a double purpose – it helps the deaf person hear and it provides a soft input to the inner ear that can modulate the signals generated.

2.Controlled Auditory Neural

A CI (controlled auditory neural) implant looks like a regular hearing aid. It is worn behind the ear, and the wires that run from it go directly to the inner ear. In addition, the cochlear implant has a microphone attached to it, and this microphone captures the incoming sounds and converts them into electrical pulses. These signals are again run through the ear canal and converted to an electrical signal, which passes through the cochlea into the brain. The actual processing of the sound and the information it contains, however, is done entirely inside the brain itself.

As previously mentioned, the processing of the sound and its content is done entirely in the brain, so it is virtually impossible for cochlear implantees to consciously control the volume or pitch of the sounds they hear. However, new technology is being developed that may someday allow some hearing-impaired people to control the frequency and intensity of their new sound. Currently, the technology is still in the very early stages, but advances are coming at a steady rate and it is expected that within a few more years, it will be possible for some users to have full control of the volume and pitch of the sounds they hear.

3.Types of Cochlear Implants

There are two types of cochlear implants currently on the market: Intra-oral and Extracorporeal. An intra-oral hearing instrument, as the name suggests, is surgically planted directly behind the ear. The hearing mechanism is contained in a small piece of plastic that is surgically inserted into the side of the ear. The brain then sends sound waves to the ear via this small piece of plastic, which is connected to the patient’s brain through a plastic tube that has been surgically implanted. This method is not only less invasive than the first type, but many cardiopulmonary patients find it easier to adjust to the new sound patterns.

4.Sensorineural Transducers

Extracorporeal cochlear implant surgery involves putting the sensorineural transducers (which are embedded in the outer ear like any other transducer) directly into the cochlea without making any incisions. The problem with this option is that the patient may need to undergo additional treatment for infections or adjust to the sounds produced. One of the problems with the first type of cochlear implant surgery was the lack of control over the volume or pitch of the sounds emitted by the device. Some patients were also reported to have hearing loss even after having undergone successful cochlear implant surgery. Because of this issue, additional tinnitus treatment testing may be needed in order to assess whether the patient really does need additional treatment or not.

Cochlear Implant Interfacing is another form of cochlear implant surgery. This option requires that the patient wear a transducer inside the inner or outside part of their ear, rather than placing the sensorineural microphones directly inside the eardrum. This type of surgery requires the use of an instrument called a probe to place the microphone in the outer or outside part of the ear and a current source to stimulate the cochlear implant if needed. Since the doctor must carefully manipulate the electrodes, this procedure takes some patients more time than the other options. However, since the result is better and the patient experiences less discomfort, many cochlear implant patients choose to go with this surgery option.

5.Surgery and Problems

Cochlear Implant Surgery may be necessary if a child has cochlear implant problems and it is too big or too uncomfortable for them to wear hearing aids. Children may need to wear earplugs or even be forced to wear them at an early age if their condition is very bad and cannot be treated with a device. Another good reason for getting this kind of surgery is if you have had a previous head or neck injury that affects your ability to hear properly. In most cases, the problem will go away once the child is older but sometimes you may need to get the ears repaired because of the trauma.

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