A surgical instrument (20) adapted for placement of a sleeve (108) of an artificial sphincter around a portion of the urethra, the surgical instrument comprising: a handle (28) and a head (26) attached to the handle (28), the head (26) comprising: a recess (30) formed in a first end surface of the head (26), the recess (30) being sized to receive a portion bottom of the urethra and aligned with a central longitudinal axis of the handle (28) a first pad (32) located on a first side of the recess (30) a second pad (34) located on a second side of the recess (30) and spaced with a separation distance of the first pad (32), the first pad (32) and the second pad (34) at a distal end being located (24) of the instrument a piercing mechanism (62) located in and can leave one of the first pad (32) and the second pad (34) wherein the punching mechanism (62) is movable by the distance between the first pad (32) and the second pad (34) to form a channel in the upper fabric respect to the urethra, the channel being sized to receive the sleeve (108) of the artificial sphincter characterized in that the punch mechanism (62) includes a latching device (120) adapted to grip a connecting element (116) of the sleeve (108) of the artificial sphincter and wherein the coupling device (120) includes a slot that is dimensioned to receive the connecting element (116), a clamp operable to grip the connecting element (116) of the sleeve (108), and a shoulder adapted to pierce the material of the connecting element (116).Un instrumento quirúrgico (20) adaptado para la colocación de un manguito (108) de un esfínter urinario artificial alrededor de una parte de la uretra, comprendiendo el instrumento quirúrgico: un mango (28) y una cabeza (26) unida al mango (28), comprendiendo la cabeza (26): un rebaje (30) formado en una primera superficie de extremo de la cabeza (26), estando dimensionado el rebaje (30) para recibir una parte inferior de la uretra y alineado con un eje longitudinal central d
