Device and methods for preventing formation of thrombi in...

A - Human Necessities – 61 – B

Patent

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A61B 17/00 (2006.01) A61B 17/12 (2006.01)

Patent

CA 2538480

The embodiments of the present invention provide a device that modifies the left atrial appendage (LAA) to reduce the likelihood of thrombus formation therein. The device includes a liner that reduces the volume of the LAA and remodels the interior geometry and surfaces of the LAA thereby minimizing the crenellations in the LAA that impede blood flow. According to some embodiments, the device further includes an anchor component. The anchor component helps to expand the liner upon deployment of the device in-vivo and further prevents dislodgement and migration of the device, by ensuring the device is properly seated and completely sealed against the walls and ostium of the LAA.

Les modes de réalisation de la présente invention concernent un dispositif qui modifie l'appendice auriculaire gauche pour réduire le risque de formation d'un thrombus. Ce dispositif comprend une garniture qui réduit le volume de l'appendice auriculaire gauche et remodèle la forme intérieure et les surfaces de l'appendice auriculaire gauche, ce qui réduit au minimum les crénelures dans l'appendice auriculaire gauche qui entravent l'écoulement sanguin. Dans certains modes de réalisation, le dispositif comprend également un élément d'ancrage. Cet élément d'encrage permet de déployer la garniture lors de la mise en place in vivo du dispositif et également d'éviter que le dispositif ne se détache et qu'ils ne se déplace, car il garantit que le dispositif est bien assis et totalement scellé contre les parois et l'orifice de l'appendice auriculaire gauche.

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