Radioactive source train

A - Human Necessities – 61 – M

Patent

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Details

A61M 25/00 (2006.01) A61N 5/00 (2006.01) A61N 5/10 (2006.01)

Patent

CA 2378000

A treating element source train (10) that comprises a plurality of treating elements (12), with each treating element comprising a hollow outer housing (14) closed on each end and a radiation emitting substance encapsulated therein. The treating elements are aligned end-to-end, and a wire (18) is wound around the exterior of the treating elements to maintain the treating elements in their end-to-end relationship. The wire may be helically coiled about the treating elements, or braided around them. Also, the wire may be secured to the proximal and distal treating elements, or to each individual treating element. Preferably, the wire is made of a radiopaque material such as gold, platinum, platinum iridium, tungsten and tantalum. In an alternate embodiment, the source train may be provided with an endcap (16) at either end, with the wire jacket being secured to each endcap.

L'invention concerne un train de sources (10) à éléments traitants, qui comprend une pluralité d'éléments traitants (12), chacun d'entre eux comprenant un logement extérieur creux (14) fermé à chaque extrémité, et une substance émettant des rayonnements encapsulée dans celui-ci. Les éléments traitants sont alignés de bout en bout et un câble (18), enroulé autour des éléments traitants, maintient lesdits éléments dans cette relation de bout en bout. Le câble peut être enroulé de façon hélicoïdale autour des éléments traitants ou peut être tressé autour de ces derniers. En outre, le câble peut être fixé aux éléments traitants proximaux et distaux ou à chaque élément traitant. Le câble est fait de préférence en un matériau radio-opaque, tel que l'or, le platine, l'alliage platine-iridium, le tungstène ou le tentale. Dans un mode de réalisation alternatif, le train de sources peut être doté d'un obturateur d'extrémité (16) à chaque extrémité, la gaine du câble étant fixée à chaque obturateur d'extrémité.

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