External placement prosthesis that acts as a sphincter on the male urinary canal, composed of a single body with a preferably cylindrical-circular structure (1) made entirely of silicone material of different density from that used in the health area. The element exerting the pressure function on the urethra, pyramidal in the manner of a protuberance (4), is located in the lower part of the interior of the device and its task is to impinge on just the urinary duct or urethra, made of density silicone very low, exerting a continuous and even pressure without being excessive. It is envisaged that the inner region of the device at its upper part (7) is covered or also filled with highly silicone material to prevent the device from being able to turn.
