The invention discloses a novel
urethra dosing device for urinary
surgery, and belongs to the field of urological
disease treatment instruments. The novel
urethra dosing device comprises a
syringe, and a cleaning liquid pushing and injecting cavity, a cleaning
dirt suction cavity and a dosing cavity which are separated from one another are arranged in the
syringe; the cleaning liquid pushing and injecting cavity and the cleaning
dirt suction cavity surround the dosing cavity, and a dosing chamber communicated with the dosing cavity is formed among the cleaning liquid pushing and injecting cavity, the cleaning
dirt suction cavity and the
syringe; the outer surface of the syringe is in wavy shape, wherein protruding parts and concave parts on the outer surface of the syringe are connected alternately, the front end face of each protruding part is provided with a cleaning liquid spraying
pipe, the outer end of each protruding part is provided with a
medicine spraying opening, and each concave part is provided with a suction
pipe; a first
piston, a second
piston and a third
piston are arranged in the cleaning liquid pushing and injecting cavity, the cleaning dirt suction cavity and thedosing cavity respectively. According to the dosing device, a cleaning mechanism and a power source mechanism of a
sewage discharge mechanism are integrated, the dosing device is convenient to control, operation is simplified,
secondary infection caused by pollutants to the
urethra can be prevented, and a clean application environment is provided for liquid
medicine; complete output of the liquidmedicine is achieved, dosing is uniform, and
drug effects of the liquid
medicine can be given play of.