Hitachi C22P Instruction Manual page 19

In the case of the CIVCO Ultra Pro 3™, push the green quick release
lever of the needle guide toward the bracket to open the needle insert,
and then remove the needle.
For details of the removing procedure of the needle, refer to the
Reference Guide each of the Ultra Pro II™ and Ultra Pro 3™.
1) Since the acoustic jelly accessory to the ultrasound diagnostic
scanner is not a sterilized one, never use it.
2) In order to make the dead angle of the needle as short as possible,
perform the biopsy operation with full display width. Regarding how
to adjust the display width refer to the operating manual of the
scanner.
3) Do not hold the needle cannula of the electrosurgical unit with metal
tweezers, forceps, and the like.
[Doing so may damage the insulation section of the needle cannula,
and may cause a burn to a non-treated area.]
CAUTION
-13- Q1E-EP1457