The invention provides a male urethrography
catheter with accurate scales and an external fixing device. The male urethrography
catheter comprises a
catheter body. The outer wall of the
ureter is sleeved with the outer fixing device in a sliding mode; the outer fixing device comprises an elastic
rubber ring close to one side of a
human body, an umbrella-shaped telescopic cover arranged on one side, far away from the
human body, of the elastic
rubber ring, a supporting arm arranged on one side, far away from the elastic
rubber ring, of the umbrella-shaped telescopic cover and a limiting
assembly arranged on the other side of the supporting arm, and the supporting arm is in a sleeve shape; the sleeve is fixedly connected with the umbrella-shaped telescopic cover and the elastic rubber ring in sequence and is arranged on the
urinary catheter in a sleeving manner; a scale identification
assembly is arranged on the outer wall of the
ureter. The
ureter fixing device is reliable in ureter fixing and not prone to falling off; the operation is simple, the pain of a patient is relieved, the safety and comfort of the patient are improved, the
urethra is prevented from being damaged by
balloon type
internal fixation, and the application crowd can be expanded to infants; operation experience of doctors can be improved, repeated
ray damage is avoided, and
operation time is effectively shortened; the
insertion depth is accurately controlled, and the body injury of a patient caused by over-depth or over-shallow depth is avoided.