Blood filter and method for treating vascular disease

A - Human Necessities – 61 – F

Patent

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A61F 2/01 (2006.01)

Patent

CA 2372189

A filter is provided that is convertible from a filter configuration to an open, stent-like configuration. The filter includes a plurality of intraluminal filter elements (filter legs) that may be formed into a single cone or dual cone filter structure. A retainer secures the filter legs in the filter configuration upon initial deployment within a vessel. The retainer is then either self-releasing or removable to permit the filter legs to expand from the filter configuration into what may generally be described as an open or stent-like configuration. A filter web extends, at least in part, between the filter legs.

La présente invention concerne un filtre pouvant être transformé d'une configuration de filtre en une configuration ouverte de type stent. Le filtre de l'invention comprend une pluralité d'éléments de filtre intraluminaux (branches de filtre) pouvant être transformés en une structure de filtre à cône simple ou double. Un dispositif de retenue fixe les branches du filtre dans la configuration de filtre lorsque le filtre est déployé à l'origine à l'intérieur du vaisseau. Le dispositif de retenue peut ensuite se libérer automatiquement ou s'enlever afin de permettre aux branches du filtre de s'étendre de la configuration de filtre jusque dans une configuration pouvant être généralement décrite comme ouverte ou de type stent. Une toile de filtre s'étend au moins en partie entre les branches du filtre.

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