Bladder fistulization needle

The utility model discloses a cystostomy needle, and relates to the technical field of medical instruments. The fistulization tube comprises a fistulization tube body, a plurality of side holes are formed in the puncture end of the fistulization tube body, and an outflow channel is formed in the fistulization tube body. The puncture needle core is movably inserted into the fistulization tube; wherein when the fistulization tube is in a natural state, the tip of the fistulization tube is naturally bent, and the puncture needle core is straightened after being placed in; after the fistulization tube is punctured into the bladder, urine enters the inner cavity of the fistulization tube from the side hole and flows out from the outflow channel; when the bladder puncture fistulization needle is used, after the bladder puncture fistulization needle is punctured into the bladder, the puncture needle core is withdrawn, the tip end of the fistulization tube is naturally curled, and a sterile application is externally