Table 1.
Stone relocation using suction and subsequent evacuation of stone fragments from different in vitro calyces using the 7.5Fr single-use digital PU3033AH flexible ureteroscope with DISS system
| Stone | 1st trial* (upper calyx) | 2nd trial* (middle calyx) | 3rd trial* (lower calyx) |
|---|---|---|---|
| N1 (3 mm) | √ | √ | X√ |
| N2 (4 mm) | XX√ | X√ | XX√ |
| N3 (4 mm) | √ | X√ | XXX√ |
| N4 (4 mm) | XX√ | √ | X√ |
| N5 (5 mm)** | XXX√ | XX√ | XXXXX |
# No difference was observed with the irrigation mode “on” and “off”
*
Maximum 5 attempts performed for each trial
**
Relocation of the stone fragment was observed in all trials
DISS – direct-in-scope suction