An intravascular radiation delivery device

A - Human Necessities – 61 – M

Patent

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Details

A61M 36/06 (2006.01) A61M 25/095 (2006.01) A61N 5/10 (2006.01)

Patent

CA 2230012

A delivery device and method for delivering a dosage of radiation from a radiation source to a treatment site of a vessel is provided herein. The delivery device includes a catheter and a delivery area. The catheter is suitable for being inserted into a vessel lumen of the vessel and includes a delivery lumen for receiving the radiation source. The delivery area also receives the radiation source. The delivery area includes an attenuator section for attenuating a portion of the radiation emitting from the radioactivearea so that the delivery area emits an eccentric radiation profile. The delivery device can also include a catheter supporter which inhibits rotational deformation in the catheter between a catheter distal end and a catheter proximal end. This allows the delivery area to be precisely rotated to properly position the attenuator section within the vessel lumen.

L'invention porte sur un dispositif d'administration et sur une méthode d'administration d'une dose d'irradiation, provenant d'une source de rayonnement, à un site de traitement d'un vaisseau. Le dispositif d'administration comprend un cathéter et une section d'administration. Le cathéter convient pour l'insertion dans la lumière du vaisseau et comporte une lumière d'administration qui reçoit la source de rayonnement. La section d'administration reçoit également cette source. Elle comporte aussi une zone atténuatrice pour atténuer une partie du rayonnement émis de la section radioactive afin que cette dernière émette un profil de rayonnement excentrique. Le dispositif d'administration peut également inclure un support de cathéter qui empêche le cathéter de se déformer par rotation entre ses extrémités distale et proximale. Le support permet de tourner la section d'administration avec précision afin de placer avec exactitude la zone atténuatrice dans la lumière du vaisseau.

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