Hearing Aid Ppt Baru

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RYAN FDIAN M

NADYA F

Hearing aid

What is a Hearing aid?• A hearing aid is a device used to regulate and

amplify sound for the user• Hearing aids are used by the partially deaf

but not the completely deaf• They can greatly improve the hearing of

someone partially deaf but it cannot cure or help complete deafness.

• Placed either in and or around the ear• They have 4 major parts: the microphone, battery, amplifier, and receiver

History• Late 1700s: Early hearing aids consisting

of a horn and a long thin tube that concentrated the sound to the ear were created. These were known as ear trumpets

• In the 19th century hearing trumpets were mass produced to aid the hearing impaired and partially deaf

• In 1898 the first carbon-type hearing aid was made due to the invention of the carbon microphone.

• In 1899 The first carbon-type hearing aid was patented by Miller Reese Hutchinson

• In 1920 vacuum tubes were added to the hearing aids to improve sound quality and clarity.

History cont.• In 1952 the first hearing aid with an on/off

switch was created. This new model was known as a transistor hearing aid

• In the 1990’s digital hearing aids were created allowing clearer and better hearing for the user

• 2000s- much smaller hearing aids were produced and are barely visible on the user.

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Sounds…..

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Styles of hearing aids

BTEs behind the ear—are about one inch long and fit snugly behind your outer ear.

OTEs on the ear—are a new style of BTE that is extremely small and sits on top of the outer ear.

ITEs in the ear—are custom-fitted to your outer ear’s contours.

ITCs in the canal—are smaller. They fit farther into the ear canal so they are barely visible.

CICs completely in the canal—are the smallest ITEs. Cosmetically, they may be the most flattering, but their tiny size can be a real disadvantage in handling.

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Styles of hearing aids

Communicator, For someone who is unable to fit a conventional hearing aid into their ear, maybe because of poor dexterity, a communicator may be a good option.

Body Worn Hearing Aid Bone Conduction Body Worn Hearing Aid Behind The Ear Bone Conduction Hearing

Aid Bone Anchored Hearing Aid (BAHA) Soft-Band Bone Conduction Hearing Aid CROS Hearing Aid BICROS Hearing Aid

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communicator

Soft-Band Bone Conduction Hearing Aid

Body Worn Hearing Aid

Bone Anchored Hearing Aid (BAHA)

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Bone-conduction glasses

The arms of the glasses contain the microphone, the amplifier and the vibrator, which is applied to the bone behind the ear. The efficiency of these devices is influenced by the thickness of the skin, the pressure provided, the contact with the skull and any complications that arise from skin irritation. The headband devices work in a similar way and have the same limitations

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Bone anchored hearing aid

A small box, containing the microphone, processor and vibrator, is clipped onto a surgically-implanted titanium screw behind the ear. Attaching the device in this way drastically improves bone conduction, as there are no problems with transmitting through the skin. In addition, the use of these hearing aids is restricted to certain types of hearing loss and require certain precautions to minimise the risk of infection .

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Middle ear implants

In a similar way to bone conduction hearing aids, sound is captured and causes the vibrator to move. In this case, the latter is fixed to one of the ossicles, meaning that normal movement of these tiny bones is restored or even amplified, and sound is transmitted to the inner ear normally. The use of these devices is also limited by factors such as the severity and type of hearing loss, the absence or damage of the ossicles

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Who uses the Hearing aids?

●Hearing loss with the birth●Hearing loss with the old age●Hearing loss with the accident●Not all hearing loss need Hearing

aid, need doctor's correct examination for determination

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When we use implantable bone-anchored hearing aids (BAHAs)

medically necessary prosthetics for persons aged 5 years and older with a unilateral or bilateral conductive or mixed conductive and sensorineural hearing loss

Congenital or surgically induced malformations of the external ear canal or middle ear (such as aural atresia); or

Dermatitis of the external ear, Hearing loss secondary to otosclerosis in persons who

can not undergo stapedectomy; or Severe chronic external otitis or otitis media; orTumors

of the external ear canal and/or tympanic cavity Other conditions in which an air-conduction hearing aid

is contraindicated.

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how hearing aids work

How dose it work

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●Microphone(Catches the sound)●Amplifier(Amplifies the sound)●Speaker(Send amplified sound

to the ear)●Power(Supply the power to

make above all happen )

Bone anchored hearing aid

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Benefit and loss hearing aid

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Benefit:1. Should improve your safety because you

can tell better where sounds are coming from, such as on coming car.

2. Also improve your understanding of words in noisy location s and give you better overall hearing in difficult situations , such as outdoors or in cars

Limitations

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• Hearing aids only amplify sounds making them useless to the deaf and nearly deaf

• Can have problems concentrating on single sounds allowing background noises to interfere

• They are visible and can cause irritation to the areas that are in contact with the device

• Loud noises can become very loud when amplified

• Many frequent hearing issues• Problems and difficulties with adjustment

Hearing aid limitations in sensorineural hearing loss

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Hearing aid improving the transmission of sound waves to the inner ear. very useful in treating conductive hearing loss

sensorineural hearing loss, they allow a damaged cochlea to draw the maximum amount of information from the stimulus. However, if the loss of sensory cells, or neurons, is too great, the quality and the performance of the messages sent to the brain will be insufficient to allow normal hearing.

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Thank you