Method and apparatus creating a radioactive layer on a...

Details Method and apparatus creating a radioactive layer on a... Method and apparatus creating a radioactive layer on a...

A - Human Necessities

61

L

A61L 31/00 (2006.01) A61F 2/06 (2006.01) A61K 51/12 (2006.01) A61L 31/08 (2006.01) A61L 31/14 (2006.01) A61N 5/10 (2006.01)

Patent

CA 2314128

An apparatus and method of forming a radioactive stent having a radioactive layer. A solution containing a radioactive isotope depositing substance in solution is provided and placed into contact with the stent or any other substrate material capable of receiving the radioactive isotope. The radioactive isotope is deposited on the stent or substrate material. Preferably a phosphorous isotope is used and the solution is polymerized forming polymer chains containing the radioactive isotope. In this embodiment, the phosphorous is bonded with the substrate material in a phosphorous-oxygen- phosphorous network.

L'invention concerne un appareil et un procédé de formation d'une endoprothèse radioactive possédant une couche radioactive. On met en contact une solution contenant une substance de dépôt d'un isotope radioactif en solution, avec l'endoprothèse ou tout autre substrat capable de recevoir l'isotope radioactif. L'isotope radioactif est déposé sur l'endoprothèse ou sur une matière de substrat. De préférence, on utilise un isotope phosphoreux et on polymérise la solution en formant des chaînes polymères contenant l'isotope radioactif. Dans le présent mode de réalisation, le phosphore est lié à la matière de substrat dans un réseau phosphore-oxygène-phosphore.

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