A - Human Necessities – 61 – N
Patent
A - Human Necessities
61
N
A61N 5/00 (2006.01) A61N 5/10 (2006.01) G21G 4/08 (2006.01)
Patent
CA 2373771
This invention is a brachytherapy device (10) in the form of a radioactive coiled wire (10). The wire (10) used to form the coil (10) is typically between 10 micrometers to 200 micrometers in diameter. The coil (10) formed from the wire (10) has an outer diameter of between about 25 micrometers, and about 1000 micrometers. The coil (10) can be formed first from a wire (10), and then made radioactive. Alternatively, the wire (10) can be made radioactive first, and then formed into a coil. Methods of incorporating a radioisotope into the wire (10) or coil (10) include, for example, nuclear transformation, ion implantation, which do not affect the flexibility, and other mechanical properties of the coil (10). Thin radioisotope films (un- numbered) can also be applied to the wire (10).
L'invention porte sur un dispositif (10) de curiethérapie en forme de fil (10) enroulé en hélice. Ledit fil (10) présente normalement un diamètre extérieur compris entre environ 10 et environ 200 µ, et l'hélice, un diamètre extérieur compris entre environ 25 et environ 100 µ. On peut tout d'abord façonner l'hélice, puis la rendre radioactive, ou au contraire rendre d'abord le fil radioactif, puis façonner l'hélice. L'invention porte également sur des procédés d'incorporation de radio-isotopes au fil (10) ou à l'hélice, par exemple par transformation nucléaire ou implantation d'ions, sans affecter ni sa flexibilité, ni ses autres propriétés mécaniques. Il est également possible d'appliquer sur le fil (10) de minces couches (non dénombrées) de radio-isotopes.
Bricault Raymond J.
Sioshansi Piran
Macrae & Co.
Radiomed Corporation
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