Patent ID: 8900267

Claim:
An instrument comprising: a lumen having a proximal end and a distal end; a handpiece affixed to the proximal end of the lumen and including an actuator; proximal articulable segment having a proximal end and a distal end, the proximal end of the proximal articulable segment pivotably attached to the distal end of the lumen via a proximal hinge pin extending in a direction generally perpendicular to a longitudinal axis of the lumen; a distal articulable segment having a proximal end and a distal end, the proximal end of the distal articulable segment pivotably attached to the distal end of the proximal articulable segment via a distal hinge pin extending in the direction generally perpendicular to the longitudinal axis of the lumen; an actuation cable extending from the actuator through the lumen and into the proximal articulable segment; and a cable router comprising: a proximal knuckle assembly comprising: a proximal segment knuckle affixed to an inner wall of the proximal end of the proximal articulable segment; a lumen knuckle affixed to an inner wall of the distal end of the lumen; and a proximal hinge pin knuckle positioned about the proximal hinge pin at a position between the proximal segment knuckle and the lumen knuckle; a distal knuckle assembly comprising: a distal articulable segment knuckle affixed to an inner wall of the proximal end of the distal articulable segment; a distal segment knuckle affixed to an inner wall of the distal end of the proximal articulable segment; and a distal hinge pin knuckle positioned about the distal hinge pin at a position between the distal articulable segment knuckle and the distal segment knuckle, wherein the cable is bent a against the proximal segment knuckle the lumen knuckle and the proximal hinge pin knuckle, the distal articulable segment knuckle, the distal segment knuckle and the distal hinge pin knuckle when the proximal and distal articulable segments are generally parallel with the lumen.