Guide wire structure for insertion into an internal space

A - Human Necessities – 61 – M

Patent

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Details

A61M 25/01 (2006.01) A61B 18/14 (2006.01)

Patent

CA 2521242

A method is described of inserting guide wires into a lumen, for example into the human gastrointestinal tract. A guide wire structure is employed which comprises at least two guide wires (1, 2) each having a leading end portion which terminates in a leading end, the guide wires being connected to one another by a junction (3) at or adjacent their leading ends, the guide wires have a first position in which the leading end portions are substantially parallel to one another, a second position in which theleading end portions are curved, and a third position in which at least one of the leading end portions forms a loop. The guide wire structure is steered through the gastrointestinal tract by selectively advancing or retracting a single guide wire or advancing more than one guide wire simultaneously, according to the path which is required to be followed.

L'invention concerne un dispositif conçu pour insérer des fils-guides dans une lumière, par exemple dans le tractus gastro-intestinal humain. Une structure de fils-guides utilisée comprend au moins deux fils-guides (1, 2), chacun ayant une partie d'extrémité avant se terminant par un embout avant, les fils-guides étant reliés les uns aux autres par un raccord (3) aux embouts avant ou jouxtant ceux-ci. Les fils-guides présentent une première position où les parties d'extrémités avant sont sensiblement parallèles les unes aux autres, une deuxième position où lesdites parties extrémités avant sont incurvées, et une troisième position où au moins une de ces parties forme une boucle. La structure de fils-guides est conduite à travers le tractus gastro-intestinal par avancement ou retrait de manière sélective d'un seul fli-guide ou par avancement de plusieurs fils-guides simultanément, en fonction du tracé à suivre.

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