Laparoscopic surgical pliers include jaws mounted on a rotating body and first and second transmissions each including at least one tendon including several cables, and each transmission adapted to transmit movement of the jaws and the rotating body, respectively. The tendons of the first and second transmissions are each respectively formed of several cables arranged so that a cross-section of at least one tendon associated with the first transmission has a variable geometry therealong formed by a first arrangement in which the cables are arranged, in cross-section, with their longitudinal axes in a radial distribution, a second arrangement in which said axes are arranged in a first orientation, and a third arrangement in which said axes are arranged in a second orientation, perpendicular to the first orientation.
