Medical tubular shaft instrument and method for producing a force transmission element of the same

A medical tubular shaft instrument, comprising:

• a straight elongated tube having a proximal and distal end;
• and
• a rod-shaped force transmission element that extends lengthwise through the tube and is slidable along the length of the tube, said rod-shaped force transmission element having a plurality of sections;
• such that the tube bears on its distal end a jaw member arrangement, which in addition is coupled with the force transmission element in order to be actuated by sliding the force transmission element along the tube,
• such that the tube on its proximal end is attached on a handpiece with hasps that can move toward one another or the tube is set up to be attached on a handpiece of this type in such a way that the force transmission element is slid along the tube when the handpiece is manually actuated,
• such that the force transmission element over a majority of its length has a smaller outer diameter than the inner diameter of the tube in order to configure a ring-shaped flushing canal between the force transmission element and the tube and
• such that the force transmission element in one section is configured along its length in such a way that it is centered in this section in the tube and in addition free space remains for flushing out the tube with the force transmission element disposed within,
• characterized in that
• the force transmission element has precisely one section in which it is centered in the tube and that this section is positioned in the vicinity of the distal end of the force transmission element and that this section is extends perpendicularly to its longitudinal axis by reshaping the force transmission element.