Endovascular system for occluding aneurysm

Details Endovascular system for occluding aneurysm Endovascular system for occluding aneurysm

A - Human Necessities

61

B

A61B 17/12 (2006.01) A61F 2/06 (2006.01) A61B 17/00 (2006.01) A61F 2/00 (2006.01)

Patent

CA 2294735

An occlusion system (10) treats an aneurysm (16) in a parent vessel (14). The parent vessel (14) defines a lumen (12) that has a lumen wall. The aneurysm (16) has a neck (18) in communication with the lumen (12). The occlusion system (10) includes a stent configured for deployment in the parent vessel (14). The stent has at least a first portion (20) and a second portion (22). The first portion (20) is permeable to blood flow and is arranged such that, when the stent is deployed, the first portion (20) is spaced from the neck (18) of the aneurysm (16). The second portion (22) is less permeable to blood flow than the first portion (20) and is arranged such that, when the stent is deployed, the second portion (22) overlies the neck (18) of the aneurysm (16).

L'invention concerne un système d'occlusion (10) permettant de traiter un anévrisme (16) dans un vaisseau parent (14). Le vaisseau parent (14) définit une lumière (12), qui comporte une paroi. Un col (18) de l'anévrisme (16) est en communication par fluides avec la lumière (12). Le système d'occlusion (10) comprend un extenseur conçu pour se déployer dans le vaisseau parent (14). L'extenseur possède une première partie (20) et une seconde partie (22). La première partie (20), perméable au courant sanguin, est disposée de manière à s'écarter du col (18) de l'anévrisme (16) lorsque l'extenseur se trouve en position ouverte. La seconde partie (22), moins perméable au courant sanguin que la première partie (20), est disposée de manière à recouvrir le col (18) de l'anévrisme (16) lorsque l'extenseur se trouve en position ouverte.

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