Artificial Urinary Sphincter

**Semantic type:** Medical Device

**Definition:** A device used to alleviate stress urinary incontinence due to urinary sphincter dysfunction following prostatectomy or prostatic radiation therapy. It consists of a urethral cuff that is deflated by applying manual pressure to an intrascrotal pump which moves the fluid from within the cuff to an intra-abdominal balloon. The cuff re-inflates automatically after a period of time when the increased intra-abdominal pressure forces the fluid from the balloon to return to the cuff reinflating it.

**Synonyms:** - Artificial urinary sphincter