Patent ID: 6428462
Filing Date: 2002-08-06
Classification: A61N

Abstract:
A radiotherapy device, comprising:a wire of radioactive material forming an inner core, said wire being adapted for implantation at a selected body tissue site and for delivering a predetermined dosage of radiation to said body tissue site, said wire having a proximal end; a buffer layer disposed about said inner core for attenuating the radiation provided by said inner core and facilitating delivery of said predetermined dosage of radiation, said buffer layer having a proximal end; said radiotherapy device being flexible and adapted for delivery to said selected body tissue site through a delivery catheter; and a pusher adapted for insertion through said delivery catheter, said pusher having a distal end, and including a release mechanism for releasably attaching at least one of said inner core proximal end and said buffer layer proximal end to said distal end of said pusher.