Urethral catheterization device

The utility model discloses a urethral catheterization device comprising a urine bag, and the urine bag is connected with a catheter. The urethral catheterization device further comprises a control valve, a controller, a pressure relief tube and a safety valve, wherein the control valve is connected with the catheter in series and used for controlling opening and closing of the catheter; the controller is used for controlling opening and closing of the control valve; one tube opening of the pressure relief tube is connected with the catheter, the other tube opening is communicated with the urine bag, and the two tube openings are located at the two ends of the control valve respectively; the safety valve is connected with the pressure relief tube in series. The control valve is controlled to be opened through the controller at regular intervals, urine in the body of a patient can be guided into the urine bag every time when the control valve is opened, especially, when the patient takes a rest, the urethral catheterization device can automatically operate, nursing intensity for the patient is greatly relieved, and the life quality of the patient is improved. In addition, because insufficient electric quantity or electronic failures easily happen to electronic equipment, the pressure relief tube and the safety valve are additionally arranged, and use safety is faultlessly guaranteed by setting the safety pressure value of the safety valve.