Abstract: A force transmission element, in particular a pull rod for an endoscopic instrument, has: a potential-free rod configured for force transmission, which has at least one local clearance; and an electrode which extends over an outer surface of the clearance and in the axial direction along the clearance, wherein the electrode is in contact with an electrical conductor which extends within the rod. One end, a proximal end, of the rod has an electrically insulated positive-connection element which is configured to engage with a bearing element of a surgical instrument. Furthermore, the pull rod for an endoscopic instrument relates to a surgical instrument comprising such a force transmission element and to a method for producing such a force transmission element.

Abstract: An electrical contact assembly, in which a first and a second contact element are electrically insulated from one another by at least one insulation element or an electrically insulating coating. In both contact elements, a through hole is formed, into each a pin can be introduced. On the first contact element and/or the first pin and the inner lateral surface of the second contact element and/or the outer lateral surface of the second pin, a groove-shaped depression is formed, having at least one annular spring element inserted which is formed from an electrically conductive and elastically deformable material, it is geometrically formed and dimensioned such that the wall facing radially outwards and/or radially inwards acts with a pressure force against the surface of a pin and the surface of the contact elements in a groove-shaped depression. The contact elements and pins are connected to an electrical voltage source.