Embolus blood clot filter with floating filter basket

Details Embolus blood clot filter with floating filter basket Embolus blood clot filter with floating filter basket

A - Human Necessities

61

F

A61F 2/01 (2006.01)

Patent

CA 2633851

A blood filter device for placement in a blood vessel including a plurality of anchor members disposed radially and extending angularly about a first hub. A filter basket is preferably positioned upstream from the anchor members. The anchor members each include a hook configured to penetrate the vessel wall to prevent longitudinal movement due to blood flow. The filter basket is made up of a number of filter members configured to retain blood clots within the basket without completely blocking blood flow or applying additional force to vessel walls. Portions of the filter members may project radially outward to position the basket near the vessel centerline, but the filter basket preferably does not include hooks or anchors for anchoring the filter basket to the blood vessel.

Dispositif pour filtrer le sang à placer dans un vaisseau sanguin englobant une pluralité d~organes d~ancrage disposés radialement et s~étendant de façon angulaire autour d~un premier moyeu. Un panier filtrant est positionné de préférence en amont des organes d~ancrage. Les organes d~ancrage comprennent chacun un crochet configuré pour pénétrer dans la paroi du vaisseau pour empêcher tout mouvement longitudinal dû à l~écoulement sanguin. Le panier filtrant est composé d~un certain nombre d~organes filtrants configurés pour retenir les caillots de sang dans le panier sans bloquer complètement l~écoulement sanguin ni appliquer de force supplémentaire aux parois de vaisseaux. Des parties des organes filtrants peuvent faire saillie radialement vers l~extérieur pour positionner le panier près de la ligne médiane du vaisseau, mais le panier filtrant ne comprend de préférence pas de crochets ni d~ancrages pour ancrer le panier filtrant au vaisseau sanguin.

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