A
ureter negative pressure sheath capable of saving calculus removing time and enabling
urination in an operation comprises a
ureter section, a bladder section, a
urethra section and a blocking structure, and the bladder section is provided with a
urine outlet. The plugging structure comprises a plugging part arranged at the
urine outlet, an operating part arranged at the in-vitro part of the
urethra section, and a connecting part for connecting the plugging part and the operating part, and the operating part controls plugging and opening of the
urine outlet. The outer
diameter of the bladder section is the same as that of the
urethra section, the outer
diameter of the bladder section and the urethra section is larger than that of the
ureter, and a single
main channel capable of playing a role in urine drainage and negative pressure suction is arranged in the bladder section and the urethra section. Through the arrangement, the retreating path of the
ureteroscope during negative pressure suction
lithotripsy can be shortened, the
operation time is saved, meanwhile, opening of the urine outlet can be controlled to achieve the purpose that urine is drained out through the
main channel, the urine outlet seals the
main channel to achieve the negative pressure suction
lithotripsy effect, the whole operation is smooth, the
operation time is saved, and the
operation safety is guaranteed.