PETER GARDINER / SCIENCE PHOTO LIBRARY PETER GARDINER / SCIENCE PHOTO LIBRARY
Urinary catheterisation. Artwork showing the insertion of a catheter into the bladder (round large organ at left) of a man to drain urine. The catheter is inserted into the urethra, the tube that runs from the bladder through the full length of the penis. If the catheter is to remain in the bladder, as in this case, a self-retaining type is used; the catheter has a balloon at its tip that may be inflated and filled with sterile water. Urinary catheterisation is performed when a person is unable to empty the bladder or is suffering from incontinence; it is also carried out during certain operations when the full bladder obstructs the view of surrounding organs.
Model release not required. Property release not required.