Surgical instrument and method

A surgical system comprising:

• a sleeve extending along a longitudinal axis between opposite proximal and distal ends, the sleeve defining a passageway;
• a first image guide coupled to the proximal end, the first image guide being disposed relative to a sensor to communicate a signal representative of a position of the first image guide;
• a shaft disposed in the passageway;
• and
• a second image guide disposed relative to the sensor to communicate a signal representative of a position of the second image guide, a distal end of the shaft engaging the second image guide to couple the second image guide to the shaft.

A surgical system comprising:

• a sleeve extending along a longitudinal axis between opposite proximal and distal ends, the sleeve defining a passageway;
• a first image guide coupled to the proximal end, the first image guide being disposed relative to a sensor to communicate a signal representative of a position of the first image guide;
• a shaft disposed in the passageway;
• a second image guide disposed relative to the sensor to communicate a signal representative of a position of the second image guide, a distal end of the shaft engaging the second image guide to couple the second image guide to the shaft;
• and
• a frame that is coupled to the second image guide, the frame being configured for engagement with vertebrae,
• wherein the distal end of the shaft includes a tapered projection that is disposed in a recess of the second image guide to couple the second image guide to the shaft, and
• wherein the shaft includes a proximal end opposite the distal end of the shaft, the proximal end of the shaft defining a threaded portion that engages a threaded portion of the sleeve to couple the shaft to the sleeve.

A surgical system comprising:

• a sleeve extending along a longitudinal axis between opposite proximal and distal ends, the sleeve defining a passageway;
• a first image guide coupled to the proximal end, the first image guide being disposed relative to a sensor to communicate a signal representative of a position of the first image guide;
• a shaft disposed in the passageway;
• and
• a second image guide disposed relative to the sensor to communicate a signal representative of a position of the second image guide, a distal end of the shaft engaging the second image guide to couple the second image guide to the shaft,
• wherein the distal end of the shaft includes a tapered projection that is disposed in a recess of the second image guide to couple the second image guide to the shaft,
• wherein the shaft includes a proximal end opposite the distal end of the shaft, the proximal end of the shaft defining a threaded portion that engages a threaded portion of the sleeve to couple the shaft to the sleeve,
• wherein the system comprises an internally threaded cap, the threaded portion of the shaft further engaging threads of the internally threaded cap, and
• wherein the shaft is coaxial with the sleeve and an emitter array of the second image guide.