Closure device for left atrial appendage

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/00 (2006.01)

Patent

CA 2687743

A device for closing the left atrial appendage of a patient comprising a retention member composed of a shape memory material and a mesh material supported by the retention member. The retention member has a first elongated configuration for delivery and a second expanded configuration for placement within the left atrial appendage. The mesh is configured to block blot clot migration from the appendage. In the second configuration the retention member moves toward a shape memory position. The retention member has a plurality of appendage wall engagement members to secure the retention member to the appendage.

L'invention concerne un dispositif pour la fermeture de l'appendice auriculaire gauche d'un patient, comprenant un élément de rétention constitué d'un matériau à mémoire de forme et d'un matériau en maille supporté par l'élément de rétention. L'élément de rétention présente une première configuration allongée pour l'acheminement et une seconde configuration expansée pour la mise en place à l'intérieur de l'appendice auriculaire gauche. La maille est configurée pour bloquer une migration de thrombose depuis l'appendice. Dans la seconde configuration, l'élément de rétention évolue vers une position de mémoire de forme. L'élément de rétention présente une pluralité d'éléments d'engagement dans la paroi de l'appendice pour fixer l'élément de rétention à l'appendice.

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