13-24 Probes and Biopsy 
   
(5)  Screw the nut of the block to secure the block. 
(6)  Insert a biopsy needle with the same specification as that of the guiding block 
into the hole of the guiding block. 
 
Plastic needle-guided bracket: 
(1)  Put on the sterile probe sheath. 
(2)  Hold the probe by one hand, select the proper needle-guided bracket, and hold it 
with the other hand. Align the narrow end tab of the needle-guided bracket with 
the groove of the probe, then push the needle-guided bracket forward, making 
the tabs and the grooves of the needle-guided bracket to match with the grooves 
and tabs of the probe. 
 
(3)  Check manually to confirm that the needle-guided bracket is securely installed 
on the probe. 
(4)  Select a proper guiding block and push it into the groove above the angle block, 
and clamp it tightly. 
 
(5)  Insert a biopsy needle with the same specification as that of the guiding block 
into the hole of the guiding block.