The utility model provides a novel prostate expands and splits pipe, comprising a main pipe, be equipped with the catheterization chamber in the person in charge and wash the chamber, the export in catheterization chamber with the rear portion of washing the export in chamber is equipped with compound bar -shaped high -pressure water pocket, compound bar -shaped high -pressure water pocket includes internal capsule and external capsule, internal capsule is located outer intracapsular front end, the front end of internal capsule chamber and outer blister cavities distinguish the opening in in internal capsule and the external capsule. Adopt this kind of structure make expand open the bladder eck after the pipe can move in the tendency bladder to relieve the emergence of the oppression prevention urinary incontinence of external sphincter, in addition, more be favorable to art prelocalization and postoperative to fix the pipe, can have avoided the appearance of pipe slippage in the operation.