Leakage-proof device for male catheterization catheter

The utility model relates to the technical field of urethral catheters, in particular to a leakage-proof device for a male urethral catheterization catheter, which comprises a urethral catheterization cannula, an elastic sleeve and a ureter, the elastic sleeve is sleeved on the penis of a patient, a hollow hemispherical urethral catheterization head is mounted at one end of the ureter, a connector is mounted at the bottom of the elastic sleeve, and a fixing mesh plate is mounted in the urethral catheterization head. A hollow mounting seat is arranged at the center of the top surface of the fixed net plate; and a fixed head connected with the mounting seat is coaxially arranged at one end part of the catheterization cannula. The penis of a patient can be sleeved with the elastic sleeve, the elastic sleeve is elastic and suitable for being used by different male patients, the connector arranged on the elastic sleeve can be connected with a urethral catheterization head on a ureter, use is convenient, the fixing