Device for loading and centering of a vascular radiation...

Details Device for loading and centering of a vascular radiation... Device for loading and centering of a vascular radiation...

A - Human Necessities

61

M

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

Patent

CA 2213914

-21- An intravascular catheter having an expandable inflation region adapted for centering a radiation dose in a body lumen for a period of time sufficient to permit delivery of a radiation dose to the body lumen. The catheter includes a delivery lumen, and a blind internal lumen for receiving a wire having a radiation source located at the distal end of the wire. The blind internal lumen is received in the delivery lumen of the catheter. The blind internal lumen prevents contamination of the radiation source by fluids from the body lumen. The radiation source is advanced through the blind internal lumen towards the inflation region of the catheter. The inflation region includes a plurality of balloon lobes at the distal end of the catheter. The plurality of balloon lobes,when inflated, can center the radiation source within a curved section of the body lumen.

-21- Cathéter intravasculaire avec section d'inflation extensible permettant de centrer une dose de rayonnement dans la lumière d'un corps assez longtemps pour y libérer la dose en question. Le cathéter comprend une lumière de libération, et une lumière interne aveugle où est introduite une broche ayant à son extrémité distale une source de rayonnement. Cette lumière interne aveugle est insérée dans la lumière de libération du cathéter, ce qui empêche la contamination de la source de rayonnement par les fluides de la lumière du corps. On amène la source de rayonnement jusqu'à la section d'inflation du cathéter par la lumière interne aveugle. Cette section d'inflation comprend plusieurs lobes à ballonnet à l'extrémité distale du cathéter. Une fois gonflés, ces lobes permettent de centrer la source de rayonnement dans une section recourbée de la lumière du corps.

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