Routing mechanisms for surgical instruments, and related devices, systems, and methods

A surgical instrument, comprising:

• a shaft having a proximal end, a distal end, and a bore extending from the proximal end to the distal end;
• an end effector;
• a wrist mechanism coupling the end effector to the distal end of the shaft, the wrist mechanism configured to articulate about a neutral position relative to the shaft;
• an actuation member extending through the bore of the shaft and the wrist mechanism, the actuation member operably coupled to the end effector;
• a sleeve surrounding the actuation member at least within the wrist mechanism,
• wherein:
• the sleeve has a straight passage defined by a negative feature extending along an inner wall surface of the sleeve and radially offset from the actuation member;
• and
• the straight passage extends along the sleeve at least within the wrist mechanism;
• and
• a flux conduit extending through the bore of the shaft from the proximal end to the distal end, wherein:
• the flux conduit is received within the straight passage of the sleeve;
• and
• a slack portion of the flux conduit is slack in a region of the shaft through which the sleeve does not extend, and
• the slack portion of the flux conduit is moveable into the straight passage of the sleeve in response to articulation of the wrist mechanism from the neutral position.

A surgical instrument, comprising:

• a shaft having a proximal end portion, a distal end portion, and a bore extending from the proximal end portion to the distal end portion;
• an end effector coupled to the distal end portion of the shaft;
• an actuation member extending through the bore of the shaft and operably coupled to the end effector;
• and
• a flux conduit extending through the bore of the shaft from the proximal end to the distal end, wherein:
• the flux conduit comprises an electrical conductor at least partially surrounded by an insulation material;
• and
• at least a portion of the flux conduit and insulating material are helically wrapped around the actuation member along at least a portion of the actuation member,
• wherein the insulation material forms a sleeve around the actuation member and separates the actuation member from an inner surface of the shaft within the bore.