Fixation devices for variation in engagement of tissue

A - Human Necessities – 61 – B

Patent

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A61B 17/08 (2006.01)

Patent

CA 2586512

Devices, systems and methods are provided for tissue approximation and repair at treatment sites, particularly in those procedures requiring minimally- invasive or endovascular access to remote tissue locations. Fixation devices are provided to fix tissue in approximation with the use of distal elements. In some embodiments, the fixation devices have at least two distal elements and an actuatable feature wherein actuation of the feature varies a dimension of the at least two distal elements. In other embodiments, the fixation devices have at least two pairs of distal elements wherein the pairs of distal elements are moveable to engage tissue between opposed pairs of distal elements. Systems are also provided comprising fixation devices and accessories.

L'invention porte sur des dispositifs, des systèmes et des procédés de rapprochement et de réparation de zones de traitement tissulaire, en particulier dans le cas de procédures nécessitant un accès aux emplacements tissulaires éloignés endovasculaire ou effractif minimal. Les dispositifs de fixation sont utilisés pour fixer le tissu situé à proximité au moyen d'éléments distaux. Dans certains modes de réalisation, les dispositifs de fixation disposent d'au moins deux éléments distaux et d'un élément actionnable, l'actionnement de l'élément servant à modifier la dimension d'au moins un des deux éléments distaux. Dans d'autres modes de réalisation, les dispositifs de fixation disposent d'au moins deux paires d'éléments distaux, lesquelles sont mobiles de façon à venir au contact de tissus entre des paires opposées d'éléments distaux. L'invention porte également sur des systèmes comprenant des dispositifs de fixation et des accessoires.

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