A handle for actuating a removable instrument formed by a rod extended by an active area, said rod extending in a longitudinal direction OX, said rod having at least one means for mechanically coupling with said handle, characterized in that said handle has a transverse insertion slot, symmetrical relative to a plane YOZ, wherein the axis OY is perpendicular to the longitudinal axis OX, said slot opening onto a surface of the handle and having a section corresponding to the section of the coupling area of said rod, in order to allow said coupling area to be inserted by way of a movement in a direction OY, until it butts against the bottom of said slot, said bottom extending in a plane parallel to the plane XOZ, wherein XOZ designates a plane perpendicular to the axis OY.
