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    • 1. 发明授权
    • Modular endoluminal stent-grafts and methods for their use
    • 模块化腔内支架移植物及其使用方法
    • US06348066B1
    • 2002-02-19
    • US09134887
    • 1998-08-14
    • Leonard PinchukJean-Pierre Dereume
    • Leonard PinchukJean-Pierre Dereume
    • A61F206
    • A61F2/90A61F2/07A61F2/89A61F2002/065A61F2002/072A61F2002/075A61F2002/826A61F2220/0025A61F2220/005A61F2220/0058A61F2220/0075A61F2230/0067A61F2230/0078A61F2230/008A61F2230/0097A61F2250/0039
    • Modular endoluminal stent-grafts include at least two different sized stent-grafts which are deployed one within the other. According to one embodiment of the invention, a first stent-graft is provided having a flared end which is expandable to a first diameter and a midsection which is expandable to a second diameter smaller than the first diameter. A second stent-graft is also provided having an end which is expandable to a diameter which engages the midsection of the first stent-graft. The first embodiment of the invention is deployed by expanding the first stent-graft such that its flared end engages a large diameter vessel, then expanding the second stent-graft inside the midsection of the first stent graft and inside a small diameter vessel such that the second stent graft engages the small diameter vessel and the midsection of the first stent-graft. According to a second embodiment of the invention, the midsection of the first stent-graft is reinforced with a flexible member to restrict the midsection from ballooning. According to other aspects of the invention, the first stent-graft is provided with two flared ends and the second stent graft is provided with or without flared ends. According to still another embodiment of the invention, three or more stent-grafts of different expanded diameter are deployed one within the other.
    • 模块化腔内支架移植物包括至少两个不同尺寸的支架移植物,其在另一个内展开。 根据本发明的一个实施例,提供第一支架移植物,其具有可扩张至第一直径的扩口端和可扩张至小于第一直径的第二直径的中段。 还提供了第二支架移植物,其具有可扩张至与第一支架移植物的中部接合的直径的端部。 本发明的第一个实施例通过使第一支架移植物膨胀,使得其扩口端接合大直径容器,然后将第二支架移植物在第一支架移植物的中部内部扩张并在小直径容器内部扩张, 第二支架移植物接合小直径血管和第一支架移植物的中部。 根据本发明的第二实施例,第一支架移植物的中部用柔性构件加强,以限制中央部分的膨胀。 根据本发明的其他方面,第一支架移植物设置有两个扩张端,并且第二支架移植物设置有或不具有扩张端。 根据本发明的另一个实施例,三个或更多个不同扩张直径的支架移植物在另一个内展开。