A tran-urethral resectoscope tool for resection of urinary bladder tumors safely, includes a resection tool body, a cutting wire and an auxiliary safeguard. The resection tool body has a first end provided with the cutting wire, and a second end. The auxiliary safeguard is arranged at a position proximal the cutting wire, and a predetermined gap is formed between the cutting wire and the auxiliary safeguard. In operation, the auxiliary safeguard is used to control a cutting depth of the cutting wire.一種經尿道內視鏡膀胱腫瘤切除工具包含一電切工具本體、一電切導絲及一輔助安全護件。該電切工具本體具有一第一端及一第二端,該電切導絲設置於該電切工具本體之第一端。該輔助安全護件設置於該電切導絲之一側,且在該電切導絲及輔助安全護件之間形成一預定間隙。該輔助安全護件用以控制該電切導絲之刮除深度。50...電切工具本體501...電切導絲503...輔助安全護件504...結合部51a...支撐桿51b...支撐桿
