The invention discloses a bladder
drug delivery device for the department of medical
oncology, and belongs to the technical field of
medical instruments. The bladder
drug delivery device comprises a
urethral catheter and a liquid
discharge port, wherein a liquid
discharge tube head is formed at the rear end of the
urethral catheter, a
drug delivery port is formed in the front end of the
urethral catheter, a
drug delivery tube head is formed at the rear end of the urethral
catheter, an elastic film is formed at the front end of the urethral
catheter, an elastic connecting ring is formed at thetail end of the elastic film, a plurality of elastic supporting rods are fixedly connected with the outer side of the elastic film, the urethral
catheter is provided with an expanding part capable ofenabling the front ends of the elastic supporting rods to move towards the outer side, and the elastic film can be unfolded to abut against the inner wall of the bladder to isolate the bladder from
urine. According to the bladder
drug delivery device, a drug or cleaning liquid can directly act on the inner wall of the bladder, an anti-falling air bag is arranged, and thereby the urethral cathetercan be prevented from accidentally sliding out of the body in the
intubation process. Part of the bladder can be isolated from
urine, and thereby a liquid
medicine cannot be diluted when the bladder is directly administrated or cleaned, so that the full
exertion of the
medicine effect is facilitated, the treatment speed of a patient is increased, and the pain of the patient is relieved.