Drug – bio-affecting and body treating compositions – Radionuclide or intended radionuclide containing; adjuvant... – Coated – impregnated – or colloidal particulate
Patent
1998-03-25
2000-05-09
Dees, Jose G.
Drug, bio-affecting and body treating compositions
Radionuclide or intended radionuclide containing; adjuvant...
Coated, impregnated, or colloidal particulate
424422, 600 3, 600 7, 600 2, A61K 5100, A61M 3614
Patent
active
060600365
ABSTRACT:
Past techniques utilized wet chemistry to produce a carrier free radioisotope for a seed implant. However, by using the technique of ion implantation, it is possible to physically separate the precursor isotope by magnetic means and further, to physically direct a beam of these isotopically pure atoms and to embed them into a suitable carrier body. Thus, formation of the seed implant may be accomplished using dry techniques, that is, no liquid chemistry. The systems and methods disclosed herein are designed to produce a beam of a single stable isotope using an ion implanter and to further implant this single stable isotope below the surface of a carrier body. After neutron activation, these single stable isotopes will produce the isotopes iodine-125, palladium-103, cesium-131, or ytterbium embedded within the carrier body. Optionally, the carrier body may be encapsulated prior to activating the precursor isotope embedded in the carrier body.
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Dees Jos,e G.
Implant Sciences Corporation
Jones Dameion
LandOfFree
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