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During the operation,the operator must observe proper needle insertion sequencing with the needle guide
in order to avoid undue discomfort and unnecessary risk and injury to the patient.
The biopsy guidelines that display on the monitor are intended as a reference. It is the operator
’
s
responsibility to verify correct positioning of the needle during a biopsy.
Do not freeze an image when performing a biopsy.
To avoid hurt to patient accidentally, the operator should be highly concentrated during a biopsy.
The biopsy needle is disposable.
To avoid the infection, disinfect the probe and wear it with the probe sheath before performing a biopsy.
You should verify the biopsy bracket before performing a biopsy.
11.2.1 Preparing a Biopsy
Prepare the following items before the biopsy.
New and straight biopsy needle
Sterile container filled with sterilized and degassed water
Properly assembled biopsy bracket
Activated on-screen guidelines
11.2.2 Verifying the Biopsy Bracket
Ensure that the biopsy bracket is properly assembled before verifying the biopsy bracket.
Steps are as follows.
1.
Enter the real time B mode, and press Biopsy.
2.
Place the probe in the sterile container filled with sterilized and degassed water.
3.
Insert the biopsy needle into the maximum depth of the water.
4.
Verify that the path of the needle displays according to the guidelines shown on the image screen.
11.2.3 Performing a Biopsy
Ensure that the biopsy bracket is properly assembled and verified before performing the biopsy.
Steps are as follows.
1.
Enter the real time B mode, and press Biopsy.
2.
Perform a scan and position and biopsy object.
3.
Insert the biopsy needle and observe the ultrasound image to confirm the position of the needle.
4.
Perform a biopsy and then take out the needle carefully. Remove the probe from the patient body.
11.2.4 Cleaning and Disinfecting the Biopsy
1.
Remove the probe bracket from the probe and take off the biopsy tube.
2.
Brush the biopsy bracket with the brush and water to remove the residues on it.
3.
Wipe off the water drops on the biopsy bracket with a lint-free cloth.
4.
After each use, perform the high-level disinfection in accordance with Table 11-2. For details,
refer
to Section 11.1.4 Disinfecting the Probe.
11.2.5 Storing the Probe
The probe must be stored in the sterile environment after disinfection.