The patent is relative to a new instrument for single access laparoscopy that tries to overcome the limits of the present instrumentation used in this technique, that usually allows to use only one forceps, which does not allow to keep the tissues tenses to work with the surgical instrument. To overcome this limitation, the proposed instrument presents two arms, arranged in parallel presenting a diameter equal to half of the main body in the opening direction of the same, while in the direction perpendicular to this these arms can have an higher diameter, provided its shape be entirely circumscribed by the external dimension of the initial body, and each bearing at the tip a forceps, which may be mounted directly on the arms or on two auxiliary arms. The internal mechanism allows opening the two arms, not necessarily in the plane of rotation of the control rings, while the forceps bend toward the inside, keeping their configuration, being all this controlled by a single command. Two additional commands allow then to open and close the forceps individually, and each command can be locked in any position. The forceps can be opened in any direction relative to the plane of the arms, which can also be adjustable in a particular version, as well as it is possible that one or both of the forceps are replaced by a tool of a different type. The instrument can also be made with curvature of the body opposite to that of the arms, the latter being also controlled with a further command. Finally, there are versions of different pliers with robotic motion control and implementation.Linvention concerne un nouvel instrument pour une laparoscopie à accès unique qui essaie de surmonter les limites des instruments actuels utilisés dans cette technique, qui permet habituellement dutiliser un seul forceps, qui ne permet pas de maintenir les tissus tendus pour travailler avec linstrument chirurgical. Afin de surmonter cette limite, linstrument proposé présente deux bras, disposés en par
