Steerable catheter with tip alignment and surface contact...

A - Human Necessities – 61 – M

Patent

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Details

A61M 25/092 (2006.01)

Patent

CA 2248328

A steerable percutaneous catheter for guiding at least one functional device to selected surfaces of a body for treatment thereon, particularly adapted for laser-assisted percutaneous transluminal revascularization (PTMR). The steerable catheter has a handle portion at its proximal end and a controllably deflectable end portion at its distal end. The distal end of the catheter and the distal end of the functional device maintain alignment automatically during deflection. The invention also includes a surface contact detection system to detect contact with an interior body surface, such as the heart wall.

Cathéter percutané orientable permettant de guider au moins un dispositif fonctionnel vers des surfaces sélectionnées d'un corps pour les traiter. Le présent cathéter est particulièrement adapté à la revascularisation percutanée transluminale par laser (PTMR). Il comprend une poignée sur son extrémité proximale, et une section à orientation commandée sur son extrémité distale. Les extrémités distales du cathéter et du dispositif fonctionnel conservent automatiquement leur alignement lorsqu'elles sont orientées. La présente invention fait également état d'un système de détection de surface de contact, qui permet de savoir lorsque le cathéter entre en contact avec une surface située à l'intérieur du corps, comme la paroi du coeur.

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