Disclosed are laparoscopy forceps, including a yoke with a hole, two jaws； a unit for mounting the jaws to pivot relative to the yoke about an axis； a control rod mounted to move in translation in the hole； a pantograph connecting the rod and two jaws using links mounted to pivot on the rod about an axis, two cams secured to the jaws, a mount for each link to pivot relative to a respective one of the two cams about axes, the four pivot axes being parallel, the outside diameter of the yoke being 2D, the width of the links being 2E, the distance between the axes when the two grip faces of the jaws are in contact being 2C, the angle under such circumstances between the axes being 2A, and the values D, E, C, and A being substantially associated by the following equation: D=C+E/cosA.
