Setting The Needle Groove; Using The Needle Stopper And The Depth Gauge - Hitachi S31KP Instruction Manual

4-3. Setting the needle groove

(1) Turn the needle groove setting knob fully counter-clockwise to set the needle groove size to the minimum..
(2) Use the release lever to attach the puncture needle to the needle groove.
(3) Face the tip of the puncture needle downward, and adjust the needle groove setting knob so that the size of the
needle groove is the minimum size where the puncture needle can move smoothly.

4-4. Using the needle stopper and the depth gauge

Use of the needle stopper and the depth gauge can prevent the needle tip being inserted beyond the
pre-measured depth (target puncture region).
To use the needle stopper and the depth gauge, follow the procedure below.
(1) Display the puncture guideline on the monitor screen.
(2) Adjust the position and angle of the probe so that the target puncture region appears over the puncture guideline on
the display, and then freeze the image.
(3) Measure the distance "a" from the reference point of the puncture guideline on the monitor screen to the target
puncture region.
Use the puncture guide distance measurement function of the ultrasound diagnostic instrument.
However the reference point does not appear on the screen.
Remarks:For details on the method of measuring the distance using the displayed puncture guideline and calipers, see
the instruction manual of the ultrasound diagnostic instrument.
Image on the monitor screen
a
Figure 11 Measurement of insertion distance
Reference point
of the puncture
guide line.
Target puncture
region
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MN1-5831 Rev.5 MN1-5831 Rev.5