Filter retrieval catheter

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/06 (2006.01) A61F 2/01 (2006.01)

Patent

CA 2439412

A catheter (200) for retrieving a filter (368) fixed to a guidewire (350) disposed within a blood vessel (370) in accordance with the present invention includes an elongate shaft (202) and a housing (224) fixed to the elongate shaft proximate a distal end (208) thereof. A tip member (236) is slidingly disposed within a cavity defined by the housing. In a preferred embodiment, the tip member (236) is configured such that the housing is substantially centered about the guidewire. In another preferred embodiment, the tip member (236) is slidingly disposed within the housing, and the tip member may be moved between a first portion and a second position.

Cathéter (200) servant à extraire un filtre (368) fixé à un fil de guidage (350) placé à l'intérieur d'un vaisseau sanguin (370). Ce cathéter présente une tige allongée (202) et une enveloppe (224) fixée à cette tige allongée à proximité de son extrémité distale (208). Un élément d'extrémité (236) est placé coulissant à l'intérieur d'une cavité définie par l'enveloppe. Dans un mode de réalisation préférée, cet élément d'extrémité (236) est conçu de façon à centrer l'enveloppe autour du fil de guidage. Dans un autre mode de réalisation préférée, cet élément d'extrémité (236) est placé coulissant à l'intérieur de l'enveloppe et peut être déplacé entre une première position et une deuxième position.

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