Patent ID: 7753913

Claim:
A targeting device for detecting a location and position within a hollow object having an opening, the device comprising: a. a magnet adapted to be positioned within the opening of the hollow object, the magnet providing a magnetic field having a shape comprised of a directional field and having a three-dimensional orientation on an x-axis, a y-axis and a z-axis; b. a target including a sensor for sensing three-dimensional rotational orientation of the magnet and two-dimensional translational position of the magnet, wherein the sensor comprises an array of sensors dimensioned and configured to detect the x-axis, the y-axis, and the z-axis, and wherein the array is configured to correspond to the magnetic field shape such that each sensor in the array is excited by a same magnitude and a same angle of flux when centered about the z-axis of the magnet; and c. a display for displaying alignment of the sensor with the magnet.