Patent ID: 7775215

Claim:
A sense head system, comprising: (a) a housing; (b) a plurality of orthogonal coils, the plurality of orthogonal coils comprising: (i) a plurality of horizontal coils, and (ii) a plurality of vertical coils, wherein the plurality of orthogonal coils are configured to receive RF signals communicated from a source of RF energy, wherein the plurality of orthogonal coils are located within the housing; (c) a needle window formed in the housing, wherein the needle window is configured to receive a syringe needle; and (d) a user interface in communication with the plurality of orthogonal coils, wherein the user interface is configured to provide an indication to a user relating to the position of the needle window relative to a needle target located within a patient, wherein data indicative of the position of the needle window relative to the needle target is obtained using the plurality of horizontal coils.