Module 2 Flashcards
Individuals may receive an ? or ?
- to make speech
- to restore
- to augment
- to enhance
- to improve
assistive listening device (ALD) or hearing assistive technology (HAT)
- audible
- a range of loudness experience
- communication
- personal safety or environmental awareness
- quality of life
Hearing aids:
hearing aid technology has
continuously ?
in addition to a ? hearing aids have three fundamental components:
developed rapidly since the mid 1800s
improving tech.
power source/ 1. microphone 2. amplifier 3. receiver
Microphones:
directional:
omnidirectional:
automatic directional:
-
more sensitive to the sound in front of the user
respond to sound from all directions
switch between modes
- conventional
- open fit
Audiologist makes decision about ?
open fit for ?
- allows for low freq. sounds to be ?
- hearing aid compensates for ?
-
-
earmold not us
high freq. sensorineural hearing loss
- picked up naturally
- missed higher freq. sounds
loss
age
what audiologist feels is appropriate
Kids normally receive ?
-why?
hearing aids need to be?
BTE hearing aids
little ear canals - don’t want to be sticking things in
-changed more freq.
Other features:
- … control
- … input
- ….
- … control
- …. control
- ….. memories
- …… what or what ?
on-off control
audio input
telecoil
volume control
remote control
multiple memories
batteries - disposable or re-chargeable
There are at least ?
- … aids
- … BTE
- …
- … in the
- …in the
- ….
- … hearing aids
body aids (old won’t see anymore)
- behind the ear
- receiver in the ear (RITE)
- in the ear (ITE)
- in the canal (ITC)
- completely in the canal (CIC)
- implantable hearing aids
Body aids: for ? -... and... worn on ? -powerful ? easy? not ? low?
severe and profound hearing loss
-bulky and highly visible
body with cord to earmold
amplification/ easy control
heavily used in US and europe
low cost
Behind the Ear (BTE)
for ?
components fit in ?
very ? can be fitted with ?
fewer problems with? and easy ?
highly ?
making it impractical for ?
appropriate for
sometimes in profound range this won’t be ? but can use until
mild to profound loss
- shell placed behind the pinna
- flexible style of hearing aid/ many customizable options
- feedback/maintenance
- visible / some
children
enough/ cochlear implant
Receiver in the ear:
for ?
comprised of a ?
casing holds all? short of ?
power and being able to ?
-bigger the hearing aid the more ?
BTE has ?
RITE ?
mild to severe hearing loss
small casing that sits behind the ear
components/receiver which sits in the ear
amplify sound the most / power it is going to be able to have
most power
close second
In the ear and in the canal
ITE’s generally for ?
ITC’s are generally for ?
fit completely ?
-The ITC fills ?
must be ?
may ?
mild-to-severe losses
mild-to-moderately severe
inside the external ear
-less of cochlea than ITE
custom fit
distort sound of user’s voice
Completely in the canal: worn ? requires a ? reduces? virtually high ?
completely inside the ear canal
remote control (when available ) for adjustment
feedback and improves sound localization
invisible
maintenance
Implantable hearing aid:
for patients who cannot wear ?
transmits ?
not very?
external aid or who choose not to do so
micromechanical vibration directly to the ossicular chain
common
Bone-anchored hearing aid (BAHA)
a type of ?
appropriate for ?
transmits sound through the ? to directly ?
implantable hearing aid
conductive or mixed hearing loss
skull / vibrate the cochlea and stimulate the hair cells
How is a hearing aid style selected?
depends upon
degree of hearing loss
patient’s preference
cost/insurance coverage
user’s age and lifestyle
user’s physical status
