Selective treatment of stent side branch petals

A - Human Necessities – 61 – F

Patent

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A61F 2/06 (2006.01)

Patent

CA 2601967

A stent may include a side branch cell comprising a plurality of petals (40). When deployed in a bifurcated vessel (30), petals located near the inside of the bifurcation may experience high amounts of bending. A petal may include a predetermined bending region (50) in which the petal is treated and may have less bending strength. Therefore, the petal will bend at the predetermined bending region in a predetermined fashion. A bending region may be heat- treated to reduce strength, may comprise less cross-sectional area than other portions of the petal, etc.

Un stent peut inclure une cellule de branche latérale comprenant une pluralité de pétales (40). Une fois déployés dans un vaisseau bifurqué (30), les pétales se trouvant près de l~intérieur de la bifurcation peuvent subir de hauts degrés de courbure. Un pétale peut comprendre une région de cintrage prédéterminée (50) dans laquelle le pétale est traité et peut avoir moins de force de cintrage. Par conséquent, le pétale se courbera à la région de cintrage prédéterminée d~une façon prédéterminée. Une région de cintrage peut être traitée par la chaleur afin d~en réduire la force, peut comprendre moins de surface en coupe que d~autres portions du pétale, etc.

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