Patent ID: 8808187

Claim:
A percutaneous needle guide for use with a medical scanning device, the percutaneous needle guide comprising: a joining structure; a plate coupled to the joining structure, wherein the plate includes a plurality of pointers, each pointer extending over a length of the plate at a fixed angle with respect to a plane; and an adjustment mechanism coupled to the joining structure for moving the plate, with respect to the joining structure, in a direction approximately parallel to the plane and to one of a plurality of positions, wherein the adjustment mechanism moves the plate without changing an angular orientation of any of the plurality of pointers formed in the exposed surface thereof; wherein the adjustment mechanism is calibrated to correlate each of the plurality of positions with a corresponding subcutaneous depth along a longitudinal axis line extending perpendicularly from the plane where the longitudinal axis line intersects a trajectory line extending from a pointer of the plurality of pointers, and wherein the adjustment mechanism includes calibration marks indicating the subcutaneous depth corresponding to each of the plurality of positions.