Disposable sterilized catheter

The utility model discloses a disposable sterilized catheter, including the body, the one end of body is patient's end, and the other end is the end of urinating, and the inlet that sets up patient'syu tip is drawn together to patient's hand ladle, and circumference is provided with the gasbag on the body of patient's tip, and the inlet is surrounded by the gasbag, be provided with water injection device and washing unit on the body, washing unit includes wash pipe and flush valve, wash pipe and body intercommunication, and water injection device includes water injection pipe and water injection check valve, the internal portion of water injection pipe dip nozzle to communicate with the gasbag. The utility model discloses the inlet in well drainage chamber is surrounded by the gasbag, andthe height of gasbag exceedes the height of inlet promptly, and the gasbag can not plug up the inlet, when will the utility model discloses when inserting the bladder, the gasbag is located a high position, and the inlet is l