Patent ID: 8876684

Claim:
A treatment apparatus comprising: a plurality of substantially rectangular flap portions; a plurality of petal portions each having a first end at least partially coupled to one or more of the plurality of flap portions, and a second substantially rounded end opposite the first end; and a radioactive seed embedded in each of the petal portions; wherein the petal portions are positioned in an offset arrangement with reference to the flap portions such that, at a proximal end of the treatment apparatus, a first of the plurality of flap portions extends beyond a first of the plurality of petal portions nearest the proximal end of the treatment apparatus and, at a distal end of the treatment apparatus, a second of the plurality of petal portions extends beyond a second of the plurality of flap portions nearest the distal end of the treatment apparatus; wherein the treatment apparatus is substantially flexible and is configured for flexing such that the first flap portion at the proximal end of the treatment apparatus is adjacent to the second petal portion at the distal end of the treatment apparatus such that a treatment surface is exposed on an outer cylindrical surface formed by the flexed treatment apparatus, the treatment apparatus configured for at least partial placement in a cavity of a mammal to apply radioactive energy from the seeds to at least some mammalian tissue forming the cavity.