Patent ID: 7497819

Claim:
A brachytherapy device comprising: a proximal portion; a grip; a plurality of arms operatively connected to said grip; a portion of each of said arms is movable from a first position at a first radial distance from a longitudinal axis of said device, to a second expanded position wherein said movable portion of each of said arms is located at a greater radial distance from the longitudinal axis of the device than the radial distance from each said movable portion of each said arm to the longitudinal axis of the device when said arms are in the first position; a rod operatively associated with said arms wherein the rod comprises at least one internal source lumen into which a radiation source may be inserted for providing brachytherapy treatment; and a plurality of source lumen tubes each defining at least one enclosed source lumen that prevents fluids from entering the lumen when the device is positioned for brachytherapy treatment, each said source lumen tube extending a sufficient distance into said proximal portion of said device to allow insertion of a radioactive source into said at least one source lumen when said device is positioned for brachytherapy treatment, and each said source lumen tube being associated with one said arm such that movement of said movable portions of said arms moves portions of said source lumen tubes from a first position to a second treatment position that is at a greater radial distance from the longitudinal axis of the device than a radial distance from each said portion of said source lumen tube to the longitudinal axis of the device when said portions of said source lumen tubes are in said first position.