Crimpable and expandable side branch cell

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/90 (2006.01)

Patent

CA 2601903

A stent (10) may include a side branch cell (30) comprising a plurality of petals (40) . Each petal may comprise struts (36) and turns (38) , and may have a longitudinal axis (42) oriented at an angle to the stent longitudinal axis (18) . Each petal may include a plurality of straight struts which are substantially parallel to the stent longitudinal axis. Each petal may include at least one appendage (70) which may be oriented substantially parallel to the stent longitudinal axis, and which may remain substantially parallel to the stent longitudinal axis as the stent is deployed. The dimension of the side branch cell about the circumference of the stent may increase more than the dimension of the side branch cell in a stent lengthwise directions as the stent is expanded.

L'invention concerne une endoprothèse comportant une cellule ramifiée latérale comportant une pluralité de pétales. Chaque pétale comporte des entretoises et des sections incurvées, et peut avoir un axe longitudinal formant un angle avec l'axe longitudinal de l'endoprothèse. Chaque pétale peut comporter une pluralité d'entretoises droites qui sont sensiblement parallèles à l'axe longitudinal de l'endoprothèse. Chaque pétale peut comprendre au moins un appendice pouvant être sensiblement parallèle à l'axe longitudinal de l'endoprothèse, et pouvant demeurer sensiblement parallèle à l'axe longitudinal de l'endoprothèse lorsque l'endoprothèse est déployée. La dimension de la cellule ramifiée latérale autour de la circonférence de l'endoprothèse peut augmenter plus que la dimension de la cellule ramifiée latérale dans les directions longitudinales de l'endoprothèse lorsque l'endoprothèse est en expansion.

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