Low profile vascular filter system

Details Low profile vascular filter system Low profile vascular filter system

A - Human Necessities

61

F

A61F 2/01 (2006.01)

Patent

CA 2421662

A removable, low profile, vascular filter system for capture and retrieval of emboli while allowing continuous perfusion of blood, comprising a guidewire having proximal and distal markers, a filter delivery and deployment system, having an outer member and an inner member, and a filter removably attached near the distal end of the inner member. The filter comprises proximal and distal basket sleeves which position the filter between the proximal and distal markers on the guidewire, after the guidewire is in position past the vessel occlusion. The guidewire placement prior to filter delivery may facilitate access to the interventional site, especially through tortuous anatomy. Also, retrievability of the filter from the wire may avoid loss of guidewire position, which may occur following removal of filters permanently attached to guidewires.

Un système de filtration vasculaire amovible, à profil bas, destiné à saisir et à récupérer des embolies tout en permettant la perfusion continue de sang, constitué d'un fil-guide comportant des marqueurs proximaux et distaux, d'un système d'installation et de déploiement de filtre, doté d'un bras extérieur et d'un bras intérieur, ainsi que d'un filtre amovible attaché à l'extrémité distale du bras intérieur. Le filtre comporte des manchons tissés proximaux et distaux, de sorte que le filtre se situe entre les marqueurs proximaux et distaux sur le fil-guide une fois que le fil-guide est placé en amont de l'occlusion vasculaire. La mise en place du fil-guide avant l'installation du filtre peut faciliter l'accès au siège de l'intervention, particulièrement dans une anatomie tortueuse. De plus, la récupération du filtre du fil-guide pourrait empêcher les déplacements du fil-guide qui peuvent survenir après l'enlèvement des filtres attachés de façon permanente aux fils-guides.

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