Biopsy guide

A method of performing a surgical procedure comprising the steps of:

• obtaining a preoperative image volume of a patient;
• selecting an entry point and a target point in said preoperative image volume to define a trajectory line;
• storing said preoperative image volume including said trajectory line in a computer to establish an image-based coordinate system;
• receiving physical space position data from a surgical guide at said computer;
• displaying said physical space position data of said surgical guide in said image-based coordinate system on a display device, said physical space position data of said surgical guide being displayed relative to said trajectory line;
• moving said surgical guide near said trajectory line by viewing said display of said space position data of said surgical guide relative to said trajectory line in said image-based coordinate system;
• aligning a pivot point of said surgical guide with a point along said trajectory line by viewing said display of said physical space position data of said surgical guide relative to said trajectory line in said image-based coordinate system;
• and
• pivoting said pivot point such that a surgical sleeve of said surgical guide is aligned along said trajectory.

A surgical guide comprising:

• a head clamp, said head clamp including fasteners for securing said head clamp to an operating table;
• an arc-shaped guiding arm connected to said head clamp, said guiding arm connected to said head clamp at a first end to provide for rotational and translational motion of said guiding arm with respect to said head clamp;
• a locking knob connected to said guiding arm and a lever connected to said guiding arm, said locking knob engageable with said head clamp to prevent translational movement of said guiding arm with respect to said head clamp and said lever engageable with said head clamp to prevent rotational motion of said guiding arm with respect to said head clamp;
• a surgical platform slidable along said guiding arm, said surgical platform including a ball joint;
• and
• a surgical sleeve passing through said ball joint.