Flexible composite guidewire for intravascular catheter

Details Flexible composite guidewire for intravascular catheter Flexible composite guidewire for intravascular catheter

A - Human Necessities

61

M

A61M 25/01 (2006.01) A61B 5/00 (2006.01) A61M 25/00 (2006.01)

Patent

CA 2500931

The present invention relates generally to guidewires with a high level of torquability, flexibility, and elasticity. In an embodiment, a guidewire comprises an elongate shaft (10) having an outside diameter. The shaft may include a filler (18) and a polymeric matrix (20), wherein the filler includes a plurality of wires (22), wherein the matrix substantially surrounds the filler, and wherein the outside diameter of the shaft is sized appropriately for being disposed within a lumen of an intravascular catheter.

La présente invention concerne des fils-guides pouvant recevoir un couple élevé et présentant un niveau élevé de flexibilité et d'élasticité. Dans un mode de réalisation, un fil-guide comporte une tige allongée présentant un diamètre extérieur. Ladite tige peut contenir un matériau de charge et une matrice polymère, ledit matériau de charge comportant une pluralité de fils et la matrice entourant essentiellement le matériau de charge. Le diamètre extérieur de la tige est dimensionné de manière que ladite tige puisse être introduite dans la lumière d'un cathéter intravasculaire.

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