Intravascular filter with centering membrane

Details Intravascular filter with centering membrane Intravascular filter with centering membrane

A - Human Necessities

61

F

A61F 2/01 (2006.01)

Patent

CA 2602048

Devices and methods for centering an intravascular filter within a blood vessel are disclosed. A filter system (10) in accordance with an exemplary- embodiment of the present invention may include an intravascular filter (12), a filter sheath (24) adapted to contain the intravascular filter, and a centering member (28) adapted to assume a preset shape when deployed within a blood vessel . The centering member may comprise an elongated wire having a hoop section adapted to radially expand against the inner wall of the blood vessel when deployed. In some embodiments, multiple centering members can be employed to facilitate centering of both the intravascular filter and the filter sheath within the blood vessel, if desired.

L~invention a pour objet des dispositifs et des procédés de centrage d~un filtre intravasculaire à l~intérieur d~un vaisseau sanguin. Selon un mode de réalisation exemplaire de l~invention, un système de filtrage (10) peut inclure un filtre intravasculaire (12), une gaine de filtre (24) conçue pour contenir le filtre intravasculaire et un élément de centrage (28) conçu pour adopter une forme prédéfinie lorsqu~il est déployé à l~intérieur d~un vaisseau sanguin. L~élément de centrage peut comprendre un câble allongé présentant une partie circulaire conçue pour s~étendre radialement contre la paroi interne du vaisseau sanguin une fois déployé. Dans certains modes de réalisation, de multiples éléments de centrage peuvent être utilisés au besoin pour faciliter le centrage du filtre intravasculaire et de sa gaine à l~intérieur du vaisseau sanguin.

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