Mitrofanoff principle

In urology, the Mitrofanoff principle is the creation of a passageway for urine or enema fluid that, by its (surgical) construction, has a valve mechanism to allow continence.

Procedures which make use of the Mitrofanoff principle:
 * Mitrofanoff procedure
 * Malone antegrade continence enema
 * Monti procedure

Eponym
It is named after the French urologist (Mitrofanoff) who popularized it.