BK Medical 20R3, User Manual

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May 2019 20R3 User Guide (16-01278-EN-07)
Crystals
The transducer is a mechanical (single-element) multifrequency transducer with a
built-in 3D mover. Inside the transducer head is a two-crystal assembly where the
crystals sit back to back. The assembly can rotate inside the transducer to give a 360º
field of view. No moving parts contact human tissue.
H or L
The selected crystal is indicated after the transducer number at the top of the screen:
H (high-frequency) or L (low-frequency).
The crystal assembly can be positioned manually or – if you have a 3D option
installed (see “3D Imaging” on page 23) – by the system.
Figure 2. Movement of the crystal assembly inside the transducer head
Imaging Plane
Figure 3. Imaging plane for the anorectal transducer. The extreme positions of the crystal
assembly are shown.
Imaging Frequencies
Each crystal has 3 imaging frequencies. On the system, the imaging frequency is
displayed on the screen.
-60mm
(fully out)
0mm
(fully in)
Default position
60mm
360°