Artificial urethral sphincter
 Discussion of Artificial urethral sphincter
- Artificial urinary sphincters replace the function of the natural urinary sphincter in patients with sphincter damage or neurologic disease.
- Most commonly used to treat patients with urinary incontinence following surgery for prostate cancer.
- They are sometimes used in combination with a bladder neck stent.
- A typical design includes:
- Urethral cuff at the bladder neck or proximal urethra.
- Cuff is attached to a pump and fluid balloon reservoir.
- Pump can be manually used to inflate or deflate the urethral cuff by redistributing the fluid in the balloon reservoir.
- Inflation of the cuff constricts the sphincter, and deflation of the cuff allows urine to leave the bladder and flow through the urethra.
 Imaging Findings for Artificial urethral sphincter
Patient #1: Images of an artificial urethral sphincter
 External Links
 References for Artificial urethral sphincter
- Tim B. Hunter, and Mihra S. Taljanovic. Medical Devices of the Abdomen and Pelvis. RadioGraphics 2005 25: 503-523.