HEARING AIDS

PRESENTER:Maliha FarooquiSyeda Wajeeha

Shumaila SheikhYasmeen Jamil

Rahat UmerAsma Agha

THE BASIC INFORMATION YOU NEED TO KNOW

MALIHA NIZAM

WHAT IS HEARING AID?A hearing aid or deaf aid is an electro acoustic device which is designed to amplify sound for the wearer, usually with the aim of making speech more intelligible.

WHEN IT USED?

When any problem in the flow of acoustic energy through different parts lead to hearing problem.

Ear is the most important sensory organ for communication.

Human Ear consisting three parts Outer Ear Middle Ear Inner Ear

DIAGNOSIS OF HEARING DISORDER. Different Audiometric

test help in diagnosing the hearing disorder.

DEGREES OF HEARING LOSS

FOUR TYPES OF HEARING LOSS

Conductive Hearing LossHearing loss caused by something that stops sounds from getting through the outer or middle ear. This type of hearing loss can often be treated with medicine or surgery.

Sensorineural Hearing LossHearing loss that occurs when there is a problem in the way the inner ear or hearing nerve works.

Mixed Hearing LossHearing loss that includes both a conductive and a sensorineural hearing loss.

Auditory Neuropathy Spectrum DisorderHearing loss that occurs when sound enters the ear normally, but because of damage to the inner ear or the hearing nerve, sound isn't organized in a way that the brain can understand.

METHODS

Auditory Brain:A- hearing Aid: Conventional Hearing Aid Bone Anchored Hearing Aid Implantable Hearing AidB- Implant Cochlear Implant Brainstem Implant C- Assistive Device For The Deaf

HEARING AIDDEVICE TO AMPLIFY SOUND ---3 PARTS

Microphone: pick up sound and convert to electrical impulses.

Amplifier: magnifies electrical impulses Receivers: convert electrical impulses back to

sound

Types Conductive hearing Aid Bone conductive hearing Aid

Bone Anchored Hearing AidBased on the principle on the bone conductionCandidacy profile. Chronic inflammation or the infection of Air

canal Children with malformed or absent outer

canal Unilateral Deafness

BAHA consisting: Titanium Fixture Abutment Sound processor

COCHLEAR IMPLANT

Electronic device- electrical stimulation of auditory nerves

Components 1- External: sound processor Mic transmitter 2- Internal: Receiver/ stimulator Electrode array

ASSISTIVE DEVICE

Help in special difficult situations warm of danger signals

3 Group

1. Assistive listening devices and systems 2. Altering devices 3. Telecommunication devices Training Speech reading Auditory trainingSpeech conversation

IDENTIFICATION OF DIFFERENT TYPES

SYEDA WAJEEHA

WHAT ARE HEARING AIDS?

Hearing aids are sound-amplifying devices designed to aid people who have a hearing impairment.

SIMILARITIES OF HEARING AIDS:

Most hearing aids share several similar electronic components, including a microphone that picks up sound; amplifier circuitry that makes the sound louder; a miniature loudspeaker (receiver) that delivers the amplified sound into the ear canal; and batteries that power the electronic parts.

HEARING AID DIFFER BY:

Design

Technology used to achieve amplification (i.e., analog vs. digital)

Special features

TYPES OF HEARING AIDS:

Analog hearing aids; and

Digital hearing aids

ANALOG HEARING AID:

Analog hearing aids make continuous sound waves louder. These hearing aids essentially amplify all sounds (e.g.,

speech and noise) in the same way. Some analog hearing aids are programmable. They have a microchip which allows the aid to have settings

programmed for different listening environments, such as in a quiet place, like at a library, or in a noisy place like in a restaurant, or in a large area like a soccer field.

The analog programmable hearing aids can store multiple programs for the various environments.

As the listening environment changes, hearing aid settings may be changed by pushing a button on the hearing aid.

Analog hearing aids are becoming less and less common.

DIGITAL HEARING AID:

Digital hearing aids have all the features of analog programmable aids, but they convert sound waves into digital signals and produce an exact duplication of sound.

Computer chips in digital hearing aids analyze speech and other environmental sounds.

The digital hearing aids allow for more complex processing of sound during the amplification process which may improve their performance in certain situations (for example, background noise and whistle reduction).

They also have greater flexibility in hearing aid programming so that the sound they transmit can be matched to the needs for a specific pattern of hearing loss.

Digital hearing aids also provide multiple program memories. Most individuals who seek hearing help are offered a choice of only

digital technology these days.

DIFFERENT STYLES OF HEARING AIDS

YASMEEN JAMIL

BEHIND-THE-EAR (BTE) AID:

It have all the features of analog programmable aids, but they convert sound waves into digital signals and produce an exact duplication of sound.

Computer chips in digital hearing aids analyze speech and other environmental sounds.

The digital hearing aids allow for more complex processing of sound during the amplification process which may improve their performance in certain situations (for example, background noise and whistle reduction).

They also have greater flexibility in hearing aid programming so that the sound they transmit can be matched to the needs for a specific pattern of hearing loss. Digital hearing aids also provide multiple program memories.

Most individuals who seek hearing help are offered a choice of only digital technology these days.

"MINI" BTE (OR "ON-THE-EAR") AIDS:

A new type of BTE aid called the mini BTE (or "on-the-ear") aid.

It also fits behind/on the ear, but is smaller. A very thin, almost invisible tube is used to connect

the aid to the ear canal. Mini BTEs may have a comfortable ear piece for

insertion ("open fit"), but may also use a traditional ear mold.

Mini BTEs allow not only reduced occlusion or "plugged up" sensations in the ear canal, but also increase comfort, reduce feedback and address cosmetic concerns for many users.

RECEIVER IN THE EAR (RITE) HEARING AIDS:

Receiver in-the-ear (RITE) (or loudspeaker in-the-ear) aids are often smaller than BTE aids because some part of the device sits inside the ear.

Like open ear BTEs, they can be easier to put in than an ear mould if you find fiddly tasks awkward.

There are different RITE hearing aids for different levels of hearing loss.

If your hearing loss is severe, you may need a type where the receiver sits in an ear mould.

IN THE EAR (ITE) HEARING AIDS:

These fit entirely into your ear. The working parts are either in a small

compartment clipped to the earmould or inside the moulded part itself.

ITE aids tend to need repairing more often than BTE aids.

COMPLETELY IN THE CANAL (CIC) HEARING AIDS:

These are even smaller than ITE aids, so they are less visible.

They are unlikely to be suitable if you have severe hearing loss or frequent ear infections.

These hearing aids are contained in tiny cases that fit partly or completely into the ear canal.

They are the smallest hearing aids available and offer cosmetic and some listening advantages.

However, their small size may make them difficult to handle and adjust for some people.

BODY WORN HEARING AIDS:

These have a small box that you clip to your clothes or put in your pocket.

This is connected by a lead to the earphone.

Some people find the controls less fiddly than those on smaller hearing aids.

Some body-worn aids are very powerful.

BONE CONDUCTION HEARING AIDS:

These are for people with conductive hearing loss or people who can't wear conventional hearing aids.

They deliver sound through the skull via vibrations

DIFFERENT PARTS OF HEARING AIDS,FAULT FINDING ANDMINOR REPAIR

SHUMAILA SHEIKH

HEARING AIDS:DIFFERENT PARTS

There are different types of hearing aid, but they all have the same five key components.

DIFFERENT PARTS

The microphone on the outside of the hearing aid picks up sound from the air as it enters the ear and converts sound waves into digital signals

The amplifier strengthens the digital signals The speaker converts the digital signals into

vibrations that then pass through the inner ear to the brain

A tiny battery powers the hearing aid A microchip - a miniature computer that helps us

tune and personalize your hearing aid to your individual needs

CIC HEARING AIDS PARTS

CIC hearing aids has only few parts you can notice and point out.

Moreover, It varies from one device to another.

Here are the basics and the most common parts with a few words on the functionality of each part.

CIC HEARING AIDS PARTS

MicrophoneTrivial, it receives the sounds from the surroundings. Note that there is usually only a single microphone on CIC devices. It limits some of the CIC abilities. Other hearing aids can have directional microphones and get more out of the sounds they receive.

Battery compartmentThe biggest of all CIC parts... Typically, it covers most of the front panel. You have to fit a size 10 battery in, and be able to open it.

Removal cordA simple nylon cord with a tiny knob so you can take the thing out. Keep in mind that CIC hearing aids are located deep in the ear canal. Once it is in you can hardly see or touch it, let alone take it out. That's why they put this cord...

VentThe purpose of the vent is to prevent occlusion feeling. It enables air and sounds to bypass the hearing aid. The vent hole on the diagram above is simply a tunnel running through the hearing aid. On some CIC it looks a bit different but the concept is the same: to enable ventilation.

HEARING AID REPAIRS

Age and use can take their toll on hearing aids, and while there’s always the option of replacing a hearing aid that has become damaged, sometimes it’s better to attempt some common hearing aid repairs first.

HEARING AID REPAIRS

Common Hearing Aid Repairs Depending on the issue, it may be able to troubleshoot

or repair your hearing aid on their own. Here are a few common hearing aid fixes you can try right now:

Replace the battery Remove and reinsert your hearing aid Clean your hearing aid Replace the wax filter Open and close the battery compartment Check your input settings

HEARING AID FEATURES AND FITTING

RAHAT UMER

HEARING AID FEATURES

Directional microphones Sound from a specific direction amplified to a greater level May help listeners to understand speech in noisy environments

Feedback suppression Squeals suppressed when the hearing aid gets too close to the phone or has a

loose fitting‐ ear mould

T‐coil (Telephone switch) Sound picked up from the telephone when switching to the "T coil" setting‐ Help to reduce the chance of hearing aid "whistling“ Also works well in environments (e.g., theaters, auditoriums, etc.) where there

is induction loop or FM installation

HEARING AID FITTING

Get a medical check up from a licensed physician to rule out any medical reasons for

hearing loss. In some cases, hearing loss is medically or

surgically treatable. Certain medical conditions may underlie the

person’s hearing loss. Seek hearing aid fitting from a licensed hearing healthcare

professional. Audiological exam, including hearing evaluation Provide proper gain and setting: Too much amplification may cause

discomfort & additional hearing loss.

HEARING AID CARE & MAINTENANCE

Keep hearing aids away from any moisture and heat, which may cause damage to the internal electronics.

Clean hearing aids as instructed. Power consumption & battery safety:

Turn off hearing aids when not in use. Keep batteries and hearing aids away from children

and pets. Visit the hearing healthcare professional on a regular

basis to have hearing aids inspected.

HEARING AID BENEFITS & LIMITATIONS

Benefits Ability to hear sounds that could not be heard previously,

and help oral communication Ability to hear speech over the telephoneLimitations Do not restore normal hearing All sounds, including background noise and undesired

sounds, are made louder. Sounds, including own voice, might seem too loud at

first. May need to be replaced every several years

LEARNING TO LISTEN WITH HEARING AIDS

Understand your hearing loss & set realistic expectations Allow yourself time to adjust and request fine‐tuning Involve your family members to understand hearing loss

and hearing aids Learn about communication strategies, including dealing

with background noise & utilizing visual cues Join support groups Learn about Assistive Listening Devices (ALDs)

HEARING AIDS VS. PERSONAL SOUND AMPLIFICATION PRODUCTS (PSAPS)Hearing Aids Any wearable sound‐amplifying medical device Aiding persons with, or compensating for impaired hearing

PSAPs NOT medical devices; wearable electronic consumer products Amplifying environmental sound for non heari‐ ng impaired

consumers for use in a variety of listening situations Not intended or labeled to compensate for hearing loss

ASSESSMENT

ASMA AGHA

When you visit the audiologist for the first time, case history form must be fill out.

A series of question to help the hearing healthcare professional better understand the medical and hearing history and health.

A subjective account of the symptoms a patient is experiencing so that it can use it in conjunction with a physical exam to make a diagnosis.

UNDERSTANDING CASE HISTORY FORM AND ITS QUESTIONS

1. Do you or have you experienced ear pain, fullness or blockage?

2. Do you or have you experienced any ringing, whooshing, roaring or other sounds when a sound is not actually present?

3. Have you ever had an ear infection or ear surgery?4. Do you have hearing loss in your family?5. What are your hobbies? What is your occupation?6. Have you experienced dizziness or loss of balance?

What is/was that like?7. What medications are you currently taking?8. Questions on general health status?

CONCLUSION

Audiologic rehabilitation is “ any activity, method, recourse, technology and/ or a device that facilitate or enhances communication and participation in an activities”

THANK YOU