Patent ID: 8170647

Claim:
A marker for locating a plurality of regions of interest within the human anatomy in a subject comprising of at least one or more radio-opaque seeds, a. wherein said one or more radio-opaque seeds remain readily detectable in vivo using common imaging modalities; b. wherein said one or more radio-opaque seeds has a proximal end and a distal end, said one or more radio-opaque seeds further comprising, i. said distal end of said one or more radio-opaque seeds is shaped as a cone, wherein said cone comprises a series of grooves on the surface of said cone, ii. said proximal end of said one or more radio-opaque seeds is shaped as a ball, and iii. said proximal end and distal end is connected by a substantial cylindrical portion, wherein said cone is larger then said substantial cylindrical portion; and c. said marker being sized and shaped for firm implantation into tissue or organ of said subject.