Torquable guiding member system

A - Human Necessities – 61 – M

Patent

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A61M 25/09 (2006.01)

Patent

CA 2395149

A catheter guidewire (500) configured for use in a body lumen to facilitate guiding of a catheter to a target location, including a thin elongate body of material forming a guidewire, having a proximal end (504), a distal end (518), and a mid portion disposed therebetween, and a longitudinal axis; and the elongate body having a plurality of transverse cuts therein forming transverse beams (514) extending generally crosswise of the longitudinal axis and spaced apart along the length of the body and axial beams generally parallel with the longitudinal axis, the configuration increasing the lateral flexibility of the body significantly more than it reduces the torsional stiffness thereof.

La présente invention concerne un fil-guide (500) pour cathéter qui est configuré pour être utilisé dans une lumière corporelle afin de faciliter le guidage d'un cathéter jusqu'à un site cible. Le fil-guide comprend un corps mince et allongé formé d'un matériau de fil-guide présentant une extrémité proximale (504), une extrémité distale (518) et une partie intermédiaire située entre les deux extrémités, ainsi qu'un axe longitudinal. Le corps allongé comporte une pluralité d'entailles transversales pratiquées à sa surface qui forment des barrettes transversales (514) s'étendant globalement en travers de l'axe longitudinal et à distance sur la longueur du corps et des barrettes axiales globalement parallèles à l'axe longitudinal, la configuration augmentant la flexibilité latérale du corps sensiblement plus qu'elle ne réduit sa rigidité en torsion.

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