Described is a novel device for fastening, immobilizing, separating and controlling the hemostasis of the penis tissues during a surgical intervention, as well as a mechanism for showing all surfaces of the penis during the surgery, either in humans or animals, the invention being a self-fastener useful for performing penis surgeries without an assistant.En resumen se trata de un instrumento nuevo para sujetar, inmovilizar, separar y controlar la hemostasia de los tejidos del pene durante su intervención quirúrgica, así como un mecanismo para mostrar todas las caras del pene durante su intervención en humanos o animales, es un auto sujetador que permite realizar intervenciones quirúrgicas del pene sin un ayudante quirúrgico.