A catheter guiding structure for providing a male penis sheath guiding urine, comprising a urination sleeve and a o-ring, wherein the urinary sleeve has a guiding space formed therein, and the bottom opening is connectable with the catheter and the urine bag, and The inner ring of the top opening is provided with a convex ring having a concave ring groove formed therein, and the leakage ring is a flexible sheet with a set of mouths at the center, and a ring is arranged on the outer circumference, and the concave ring is oppositely The groove is tightly fitted to make the o-ring of the o-ring stable, and the sleeve is used for the male penis to be sheathed, and the catheter space is isolated from the outside to prevent leakage of urine and to give the penis an erection. No shrinkage margin, avoiding an inappropriate restraint on the penis, thereby forming a catheter structure with better comfort, leakage prevention and easy cleaning efficiency.一種導尿結構，用以提供男性陰莖套戴導引尿液，包括有一尿套及一止漏圈，該尿套內部形成有一導尿空間，其底部開口可與導管、尿袋連接，而其頂部開口處內側環設有一在內部形成有凹環槽之凸環，該止漏圈為一中央開設有一套口之可撓性薄片，其外周環設一套環，可相對地與該凹環槽緊密套合，使該止漏圈穩定的平面撐張，讓該套口供男性陰莖穿置套束，且將該導尿空間與外界隔離，防止尿液向外滲漏，並賦予陰莖勃起與否之張縮裕度，避免對陰莖產生不適當的束縛感，藉此構成一具有較佳舒適感、防滲漏及易清洗效率之導尿結構。
