The invention relates to a urethral dilatation bougie drainage tube with a step-by-step dilatation
balloon, and belongs to the technical field of medical appliance manufacturing. The urethral dilatation bougie drainage tube comprises a head part, a body part and a
tail part, wherein the head part is a single-channel
pipe, a channel 4 is arranged in the head part, the front end of the head part isan arc-shaped blind end, and the side wall of the head part is provided with a
urine passing hole 5; the body part is a double-channel
pipe, a channel 6 and a channel 7 are arranged in the body part,the channel 6 communicates with the channel 4, the
pipe wall of a coated
balloon 8 is concave, a through hole arranged in the pipe wall of the middle part of the
balloon 8 communicates with the channel 7; and the
tail part is a double-channel pipe, a channel 9 and a channel 10 is arranged in the
tail part, the channel 9 communicates with the channel 6, the channel 10 communicates with the channel7, the tail end of the tail part is provided with a connector 11 and a connector 12, the connector 11 communicates with the channel 9, and the connector 12 communicates with the channel 10. The channels of the head part, the body part and the tail part are made of hard
polyethylene, and the head part and the body part are in an L shape. The urethral dilatation bougie drainage tube provided by theinvention has the advantages of less
irritation to
urethra, higher safety, simple operation, less damage to
urethra mucosa, less complication and low occurrence rate of
restenosis.