Guidewire with reinforcing member

Details Guidewire with reinforcing member Guidewire with reinforcing member

A - Human Necessities

61

M

A61M 25/01 (2006.01)

Patent

CA 2538692

Alternative designs, materials and combinations for guidewires. Some embodiments pertain to a guidewire having a stainless steel elongated core member. A nickel-titanium reinforcing member may be located about a distal region of the core member having a reduced diameter, wherein a portion of the distal region of the core member extends beyond the reinforcing member. The nickel-titanium member may have added physical characteristics providing superior flexibility. An outer member may be placed about the distal portion of the core wire and extend over the reinforcing member.

L'invention concerne des conceptions différentes, des matériaux et des combinaisons pour fils guides. Dans des modes de réalisation, un fil guide comprend un élément noyau allongé en acier inoxydable. Un élément de renforcement en titane-nickel peut être situé sur une région distale de l'élément âme présentant un diamètre réduit, une partie de la région distale de l'élément âme s'étendant au-dessus de l'élément de renforcement. L'élément de titane-nickel peut présenter des caractéristiques physiques supplémentaires fournissant une flexibilité supérieure. Un élément extérieur peut être placé autour de la partie distale du fil de l'âme et s'étendre sur l'élément de renforcement.

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