Design and assembly of fenestrated stent grafts

Details Design and assembly of fenestrated stent grafts Design and assembly of fenestrated stent grafts

A - Human Necessities

61

F

A61F 2/06 (2006.01)

Patent

CA 2619585

A method of sizing of a stent graft (20) includes the steps of placement of fenestrations (30, 32) to ensure access to side branch vessels (13, 15) through the fenestrations when the stent graft is introduced into a body vessel. Assembly includes temporary diameter reduction arrangements to enable partial release of a stent graft to assist with positioning of fenestrations with respect to side branch vessels. The method includes spacing the fenestrations to be the same circumferential distance as the side branch vessels irrespective of the diameter of the stent graft.

La présente invention concerne un procédé de dimensionnement d'endoprothèse (20) qui consiste à placer des fenestrages (30,32) afin d'assurer l'accès à des vaisseaux ramifiés latéraux (13,15) par ces fenestrages lorsque l'endoprothèse est introduite dans un vaisseau corporel. Un ensemble comprend des agencements de réduction de diamètre temporaire permettant de libération partielle d'une endoprothèse afin d'aider au positionnement de fenestrages par rapport aux vaisseaux ramifiés latéraux. Ce procédé consiste à espacer les fenestrages de sorte qu'ils soient à la même distance périphérique que des vaisseaux ramifiés latéraux quel que soit le diamètre de l'endoprothèse.

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