Graft endoframe having axially variable characteristics

Details Graft endoframe having axially variable characteristics Graft endoframe having axially variable characteristics

A - Human Necessities

61

F

A61F 2/90 (2006.01) A61F 2/06 (2006.01)

Patent

CA 2714570

A prosthesis comprises a tubular body that is expandable from a contracted configuration to a radially expanded configuration. The tubular body has a total length and comprises a first section, a second section and a central section disposed therebetween. The total length of the tubular body in the expanded configuration is at least 95% of the total length of the tubular body in the contracted configuration. The three sections have a plurality of tubular rings, each with a plurality of struts having a length and coupled together to form a series of peaks and valleys. A connector couples adjacent tubular rings together. The length of the central section struts is different than the length of the other struts and the central section is coupled with both the first and second sections.

Linvention concerne une prothèse comprenant un corps tubulaire qui peut être détendue dune configuration contractée à une configuration radialement détendue. Le corps tubulaire a une longueur totale et comprend une première section, une deuxième section entre lesquelles est disposée une section centrale. La longueur totale du corps tubulaire dans la configuration détendue est dau moins 95 % de la longueur totale du corps tubulaire dans la configuration contractée. Les trois sections comportent une pluralité de bagues tubulaires, chacune dotée dune pluralité de jambes de force ayant une longueur et couplées ensemble pour former une série de pics et vallées. Un raccord couple les bagues tubulaires adjacentes ensemble. La longueur des jambes de force de la section centrale est différente de la longueur des autres jambes de force et la section centrale est couplée à la fois à la première et à la seconde section.

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