The utility model discloses a disposable
ureteroscope guide sheath which comprises a hose, one end of the hose is communicated with a fixing sleeve, two sets of sliding assemblies are connected in the fixing sleeve in a sliding mode, two sets of steel wire ropes are connected in the hose in a sliding mode, and one end of each steel
wire rope is fixedly connected with a fixing piece. According to the disposable
ureteroscope guide sheath, through the arrangement of the sliding
assembly and the steel
wire rope, when the guide sheath is inserted into the
urethra, the pull ring is pulled according to the bending degree of the
urethra, so that the pull rod drives the steel
wire rope to slide in the sliding hole in one side in the hose, the positioning rod slides in the fixing sleeve, and the telescopic spring is stressed to deform; the steel wire
rope is pulled to drive the hose to deflect, so that the effect of adjusting the
deflection angle of the conical
intubation tube is achieved, the situation that the conical
intubation tube extrudes the
urethra wall and causes urethra injury when the disposable
ureteroscope guide sheath is directly inserted into the urethra is prevented, and the adjustability and safety of the disposable ureteroscope guide sheath are improved.