Leica Biosystems ANGLE TWO - Manual (Page 12)

Components
Leica Angle Two ™ User Manual Rev A02 © Leica Biosystems Richmond Inc. 2010 12
The ear bars are locked into position using the locking levers. The right lever has a right-hand
thread, and the left lever a left-hand thread. The levers only need a quarter turn to lock the ear
bars.
Caution
Use 45° ear bars if post-surgical testing is planned. Do not use 18° ear bars as they will break the
tympanic membrane of an animal.
Caution
Do not use the 45° or 18° ear bars on a mouse. The mouse’s breathing passages run between the
ears, and as the skull is very thin, the mouse can easily suffocate if too much pressure is applied by
the ear bars. The mouse ear canal is too small to admit the ear bars blunted to avoid damage in
rats.
Figure 7. Turn the lever to lock the ear bar into place