Flashcards in unit 2 Deck (11):
1
checking hearing aids
use a hearing aid stethoscope
connects to their aid
think about what their loss is to understand what the aid should sound like
-missing the uppers- should sound like treble
2
using an otoscope
3/4 and younger use a peds tip
use adult for older
3
hearing aid
picks up sound (acoustic energy) with a microphone
transduced to mechanical energy to electrical to acoustic again
-an amplifier
A small electronic device that is worn in or behind the ear
It magnifies sound vibrations entering the ear making sounds louder and clearer for the user
4
digital vs. analog
analog is manually adjusted
digital is changed on a computer
digital is much clearer
5
types of hearing aids
behind the ear
in the ear
in the canal aids
completely in the cancel aids
implantable aids
6
behind the ear
ear mold and tube- putting as little in the ear canal as possible
traditional- power
-connected to an ear mold
-the bigger it is the more power it has
thin tube
-electronics in the hearing aid, just a tube in the ear
Receiver in the canal (RIC)
receiver, speaker in the tube
Location:
- Located behind the ear
- Has a hook that attaches to the earmold
Advantages:
Who? Can be fit to any motivated HI person
Has a lot of flexibility with features
Greater gain & MPO than smaller hearing aids
Telecoil is stronger than with smaller hearing aids
Only the earmolds need to be replaced as ears grow and change size/shape
--can use a loaner with their ear mold if it needs worked on
DAI is available (important for students)
Suitable for ears with medical problems
Possible Issues/Disadvantages:
More conspicuous than smaller aids
May fall off during work or recreation
May seem more difficult to insert, remove, and adjust volume control than a smaller hearing aid
7
In the ear (ITE)
fills up the entire apichure of the ear
custom fit to the person
8
kids generally have behind the ear. Why?
in the ear is a custom made aid, it would be hard to get that for a child because they are growing
a non fitting mold causes sound quality changing, whistling (feedback)
9
in the canal
provides a better look, but less flexibility to change the sound
10
mic and helix
the mic is in a tub that rests in the helix of the pinna so that the mic faces forward
11