Drug – bio-affecting and body treating compositions – Radionuclide or intended radionuclide containing; adjuvant... – Dissolving or eluting from solid or gel matrix
Reexamination Certificate
2006-01-17
2006-01-17
Hartley, Michael (Department: 1618)
Drug, bio-affecting and body treating compositions
Radionuclide or intended radionuclide containing; adjuvant...
Dissolving or eluting from solid or gel matrix
C424S001290, C424S001330, C424S001110, C600S007000, C600S008000
Reexamination Certificate
active
06986880
ABSTRACT:
Therapeutic sources for use in the practice of brachytherapy comprise a radioactive composite that includes (a) a polymeric matrix and (b) a radioactive powder, e.g. Pd-103 or I-125, consisting essentially of very fine radioactive particles that are randomly and essentially uniformly dispersed within the polymeric matrix. The composite may be in the shape of one or more solid cylindrical rods surrounded by a non-radioactive sleeve. Alternatively it may be a hollow rod, suture, film, sheet, or microspheroidal particles. The composite may be shaped by molding, extrusion or other methods, may be made with a flexibility suitable to its intended use or may be encapsulated in a metallic capsule.
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Coniglione Roy
Russell John
Elman Gerry J.
Elman Technology Law P.C.
Hartley Michael
International Brachytherapy s.a.
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