Actuating element, surgical instrument, and method for manufacturing the actuating instrument

1 . A force transmission element for a surgical instrument comprising:

an electrically conductive rod configured for force transmission;

electrical insulation that extends circumferentially over an outer surface of the electrically conductive rod and at least in sections in an axial direction along the electrically conductive rod, wherein the electrical insulation is connected mechanically to the electrically conductive rod; and

an electrically conductive sleeve that is a round tube arranged circumferentially around the electrical insulation and extends at least in sections in the axial direction and along the electrical insulation,

wherein the electrically conductive rod has at least one recess and the electrical insulation extends at least along the at least one recess, and the at least one recess is configured to limit or block at least a translational or rotational degree of freedom of the electrically conductive rod with respect to the electrically conductive sleeve, and

wherein the electrically conductive sleeve has an embossment that extends at least in sections into the at least one recess and which is configured to mesh with a securing element of the surgical instrument, wherein the embossment is configured to block at least the rotational degree of freedom around an axis parallel to an axial direction of the sleeve when the embossment engages with the securing element, and the embossment has at least one essentially flat section configured to make essentially flat contact with a flat surface of the securing element that runs parallel to the axial direction of the sleeve and is located inwardly in a radial direction with respect to a surface of the electrically conductive sleeve.

2 . The force transmission element according to claim 1 , wherein

the electrically conductive rod is a round bar, where the electrical insulation extends at least in sections circularly along the outer surface of the electrically conductive rod, and wherein the electrically conductive sleeve extends at least in sections circularly along a surface of the electrical insulation.

3 . The force transmission element according to claim 1 , wherein:

the at least one recess has at least one essentially flat section parallel to the axial direction of the electrically conductive sleeve that is located inwardly with respect to the outer surface of the electrically conductive rod and makes face-to-face or flat face-to-face contact with the essentially flat section of the embossment.

4 . The force transmission element according to claim 1 , wherein:

the embossment is configured to limit or block the translational degree of freedom in a direction parallel to the electrically conductive sleeve when the embossment engages with the securing element, where the embossment has at least one stop configured to block or limit a translational degree of freedom.

5 . The force transmission element according to claim 1 , wherein

the at least one recess has at least one stop, wherein the at least one stop and the embossment are configured to limit or block at least the translational degree of freedom in a direction parallel to the electrically conductive rod.

6 . The force transmission element according to claim 1 , wherein one or more of:

the electrical insulation includes on its outer surface and at least in an area of the embossment material configured to allow the electrical insulation to slide, or

the electrically conductive sleeve includes materials on its inner surface and at least in the area of the embossment and is configured to slide.