Patent ID: 7795591

Claim:
In combination, a rigid grid positioning system, stereotactic gamma imager, and an obturator for real-time localization of a region of interest during the performance of a surgical procedure comprising: a) a rigid grid positioning system and stereotactic gamma imager including a mechanism for the acquisition of images useful in calculating the spatial location of a region of interest in a mass under study; b) a generally U-shaped obturator inserted through the rigid grid positioning system comprising: i) first and second individual and generally parallel capillary tubes defining a continuous path for the introduction thereto and the removal therefrom of a radioactive fluid interconnected at a point of connection between the first and second individual and generally parallel capillary tubes; ii) a reservoir for the radioactive fluid at the point of connection; wherein the reservoir is inserted into the mass containing a region of interest and the radioactive fluid provides a marker for the region of interest during subsequent imaging and thereby specific localization of the region of interest during subsequent procedures.