Balloon expandable superelastic stent

A - Human Necessities – 61 – L

Patent

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Details

A61L 27/06 (2006.01) A61F 2/06 (2006.01) A61L 31/02 (2006.01) A61F 2/00 (2006.01)

Patent

CA 2499453

A balloon expandable superelastic stent is made of a Ti-Ni-Nb (the content of Nb being at least 3 at%) shape memory alloy. A shape recovery temperature of the stent is lower than a living body temperature in an unloaded state after shape memory treatment. The shape recovery temperature exceeds the living body temperature after the stent is mounted to a catheter and released from the catheter in a living body.

Divulgation d'une endoprothèse vasculaire expansible en forme de ballonnet superélastique, constituée d'un alliage de Ti-Ni-Nb (la teneur en Nb se chiffrant à au moins 3 %) à mémoire de forme. Une température de rétablissement de la forme de l'endoprothèse vasculaire est inférieure à celle d'un organisme vivant à l'état déchargé après un traitement de mémoire de forme. La température de rétablissement de la forme est supérieure à celle de l'organisme vivant après que l'endoprothèse vasculaire ait été fixée à un cathéter et libérée du cathéter dans un organisme vivant.

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