Mindray Imagyn 7, Operator'S Manual

Page: 393 / 492

17 Probes and Biopsy
Operator’s Manual 17 - 75
17.3 Needle Navigation Guiding
WARNING
• The person performing needle navigation guiding procedures must
understand diagnostic ultrasound thoroughly and have been trained
adequately, otherwise, side effects may be caused in the patient.
• Wear sterile gloves before performing the needle navigation.
• Clean and disinfect the navigation device by instructions in the device
accompanied manual before and after needle navigation.
• Please read the warning information by instructions in the device before
needle navigation.
• Disinfect the probe and sterilize the bracket. For details, refer to chapter
“17.2.6 Clean and Sterilize the Needle-Guided Bracket”. Otherwise, cross-
infection may be caused.
• When performing needle navigation procedures, use only sterile ultrasound
gel that is certified to be safe. And manage the ultrasound gel properly to
ensure that it does not become a source of infection.
• Needle navigation on patients with implants or with intracavity electro,
magnetic, mechanical device are prohibited. When the magnetic navigator
is working, previously described patients should be at least 1 meter away
from the working area. Bent or damaged needle are forbidden in the
operation.
• Perform accuracy verification before conducting needle navigation. You
can use the needle-guided bracket to anchor the needle before needle
navigation for a better result.
• Needle guidance on the ultrasound image is for reference only and cannot
provide as sole guidance for diagnosis basis.
• The needle mark displayed on the ultrasound image does not indicate the
actual position of the needle. Therefore, it should only be used as a
reference. Always monitor the relative positions of the biopsy needle during
the procedures.
• Stop operation immediately when incorrect installation or improper working
status of the magnetic device is observed. Contact the device manufacturer
for further action. Do not freeze an image while performing biopsy
procedure. Image of the biopsy target and the actual position of the biopsy
needle: Diagnostic ultrasound system produces tomographic plane images
with information of a certain thickness in the thickness direction of the
transducer. (The information shown in the images consist all the
information scanned in the thickness direction of the probe.) So, even
though the needle appears to have penetrated the target object in the
image, it may not actually have done so.