The four scenarios used to evaluate how ureteroscope removal affects the renal pelvis pressure.

Each option has the same cumulative insertion time but different cumulative withdrawal time. The total procedure times is thus different for the four different options. The model procedures are repeated for a 10/12, 11/13 and 12/14 Fr UAS, as well as no UAS.

每种试验方案的累计插入时长均保持一致，但累计拔出时长各不相同。因此四种不同方案的总操作时长存在差异。本模型实验流程针对10/12、11/13及12/14 Fr的UAS以及无UAS的场景分别重复开展。