Urethral dilator for urologic surgical procedures surgery and control method

The invention belongs to the technical field of urinary surgery, and particularly relates to a urethral dilator for urologic surgical procedures and a control method. The dilator comprises a support frame and a dilating main body, wherein a control rod is clamped and connected to one side in the support frame, a guide gas bag body is bonded to the tail end of one side of the outer surface of the control rod, a rubber hose is integrally formed on one side of the outer surface of the guide gas bag body, a clamping rod is bonded to one side of the outer surface of the guide gas bag body, one sideof the outer surface of the clamping rod is clamped to one side of the interior of the dilating main body, and a positioning pin penetrates through positioning holes formed in a first pushing pistonand a second supporting block, so that the first pushing piston can be ensured to be stable, then the gas amount in the guide gas bag body is ensured to be stable, the stable supporting performance ofthe guide gas bag body is