Intraluminal grafting system

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/06 (2006.01) A61F 2/00 (2006.01)

Patent

CA 2222805

An intraluminal grafting system (121) comprises a generally sinusoidal wire frame (131) having apices (136) which extend longitudinally outward from the end of the tubular body apices which are secured within the tubular body. Both the protruding apices (136) and the base apices (132) are formed with helices which bias the attachment system radially outward. The attachment system further includes a plurality of lumen piercing members (161) that are oriented in a responsive relationship to the radially outward bias of the attachment system. The graft may include a plurality of synthetic fiber tufts (318) secured to the outer surface of the tubular body to facilitate sealing the graft within the vessel. The graft may also include a plurality of crimps (374) formed in the tubular body of the graft.

La présente invention se rapporte à un système (121) de greffe intraluminale comportant en général un cadre à fil sinusoïdal (131) pourvu de sommets (136) partant longitudinalement vers l'extérieur à partir de l'extrémité des sommets du corps tubulaire, lesdits sommets étant fixés à l'intérieur du corps tubulaire. Les sommets (136) en saillie tout comme les sommets (132) de base sont formés avec des hélices qui sollicitent le système de fixation radialement vers l'extérieur. En outre, le système de fixation comporte une pluralité d'éléments (161) transperçant le lumen orientés de façon à être sensibles à l'inclinaison radiale vers l'extérieur du système de fixation. La greffe peut comporter une pluralité de touffes (318) de fibres synthétiques attachées à la surface extérieure du corps tubulaire afin de faciliter l'étanchéité de la greffe à l'intérieur du vaisseau. La greffe peut galement comporter une pluralité de sertissages (374) formés dans le corps tubulaire de la greffe.

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