Longitudinally flexible stent

A - Human Necessities – 61 – F

Patent

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A61F 2/90 (2006.01)

Patent

CA 2338782

An intravascular stent especially suited for implanting in curved arterial portions. The stent retains longitudinal flexibility after expansion. The stent is formed of intertwined meander patterns forming triangular cells. The triangular cells are adapted to provide radial support, and also to provide longitudinal flexibility after expansion. The triangular cells provide increased coverage of a vessel wall. The stent can have different portions adapted to optimize radial support or to optimize longitudinal flexibility. The stent can be adapted to prevent flaring of portions of the stent during insertion.

Il s'agit d'une endoprothèse vasculaire adaptée spécialement à un implant dans des tronçons d'artères incurvés. L'endoprothèse conserve sa souplesse longitudinale après extension. L'endoprothèse est constituée de méandres liés formant des cellules triangulaires. Ces cellules sont adaptées pour assurer un soutien radial, et aussi, pour fournir une souplesse longitudinale après extension. Les cellules triangulaires assure une couverture accrue de la paroi vasculaire. L'endoprothèse peut comporter des parties différentes pour optimiser le soutien radial ou pour optimiser la souplesse longitudinale. L'endoprothèse peut être adaptée pour empêcher le tulipage de parties de son corps lors de l'insertion.

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