Maico MB 11 Classic, Operation Manual

Page: 37 / 72

Operation Manual MB 11 Classic
8100498-4_OM_MB11_Classic_3.18_EN_16a.docx 35 01/16
6.3.2 In-the-ear Eartips
6.3.2.1 Selecting a disposable ear tip
When in-the-ear tips are used to deliver the stimulus, the size of the
disposable ear tip should correspond to the size of the patient’s ear canal.
Ear tips of several sizes are provided with your MB11 Classic system. Look at
the patient’s ear canal opening and choose the ear tip size that appears to
be the best fit, keeping in mind that a secure, tight fit of the ear tip is
desirable.
Install the eartips onto the small white adapters at the end of the insert
earphone tubes.
6.3.2.3 Placement of eartips for infants
Grasp the baby’s ear and pull down and out
gently to open up the ear canal. While holding
the canal open, slide the ear tip gently, but
securely into the canal with a slight twisting
motion. If the placement of the ear tip is too
superficial in the canal it is likely to fall out
during the test, so a secure placement is
important.
While it is possible to perform a screening test
in both ears simultaneously using the MB11 Classic, it is sometimes a
challenge to keep the ear tips securely in both ears of the patient especially
one that is lying supine. As the patient turns the head from side to side, one
ear tip is likely to become dislodged from the canal.
To perform binaural simultaneous testing, the use of the disposable,
adhesive EarCups is recommended. See Section 6.3.4.
6.3.2.4 Placement of eartips for adults
For older children and adults, the foam ear tips
are recommended. First, place the ear tip
securely on the white adapter at the end of the
insert earphone tubing. To prepare the foam
ear tip for insertion in the ear canal, you must
compress the foam by rolling it in your fingers
to narrow its diameter (Figure 13). Check to be
sure that the foam does not obstruct the
opening of the black sound tube.
Quickly, while the foam is still compressed,
grasp the patient’s ear and gently pull it up and
Figure 12
One style of infant eartips
Figure 13
Compressing the foam ear tip