Endoluminal graft with integral structural support and method for making
same
    4.
    发明授权
    Endoluminal graft with integral structural support and method for making same 失效
    具有整体结构支持的腔内移植物及其制备方法

    公开(公告)号:US6053943A

    公开(公告)日:2000-04-25

    申请号:US77533

    申请日:1998-05-28

    摘要: A structurally supported graft (10) having a support structure (26) with strain relief sections (30) contained with an internal surface, an external surface, or a wall thickness of a tubular graft member (12). The structurally supported graft (10) may include a beading element (24) which is co-extruded with the support structure (26) having strain relief sections (30) and spiraled about the tubular graft (10). The support structure (26) includes differing types of strain relief sections (30) which are capable of allowing for the longitudinal and radial expansion of the structurally supported graft (10), respectively. The strain relief sections (30) may also include unconnected ends which form outwardly protruding barbs (62) upon expansion of the structurally supported graft within a blood vessel or body lumen. The method for making the structurally supported graft includes selecting or preparing a support structure with strain relief sections, co-extruding the structural support with a beading element, forming a spiral about the tubular graft with the co-extruded structure, and securing the co-extruded structure to the tubular graft.

    摘要翻译: PCT No.PCT / US95 / 16497 Sec。 371日期:1998年5月28日 102(e)日期1998年5月28日PCT提交1995年12月8日PCT公布。 公开号WO97 / 21401 日期:1997年6月19日具有支撑结构(26)的结构支撑的移植物(10)具有应变消除部分(30),其包含管状移植部件(12)的内表面,外表面或壁厚。 结构支撑的移植物(10)可以包括与具有应变消除部分(30)并且围绕管状移植物(10)螺旋化的支撑结构(26)共挤出的卷边元件(24)。 支撑结构(26)包括不同类型的应变消除部分(30),其能够分别允许结构支撑的移植物(10)的纵向和径向膨胀。 应变消除部分(30)还可以包括在结构上支撑的移植物在血管或体腔内膨胀时形成向外突出的倒钩(62)的未连接的端部。 用于制造结构支撑的移植物的方法包括选择或制备具有应变消除部分的支撑结构,将结构支撑件用滚珠元件共挤出,用共挤出结构在管状移植物周围形成螺旋, 挤压结构到管状移植物。

    Helically supported graft
    7.
    发明授权
    Helically supported graft 失效
    螺旋支持移植

    公开(公告)号:US06264684B1

    公开(公告)日:2001-07-24

    申请号:US08999583

    申请日:1997-12-22

    IPC分类号: A61F206

    摘要: Shape memory alloy and elastically self-expanding endoluminal support structures which are at least partially encapsulated in a substantially monolithic expanded polytetrafluoroethylene (“ePTFE”) covering. An endoluminal stent, which has a reduced diametric dimension for endoluminal delivery and a larger in vivo final diametric diameter, is encapsulated in an ePTFE covering which circumferentially covers both the luminal and abluminal walls along at least a portion of the longitudinal extent of the endoluminal stent. The stent and ePTFE covering are helically wound into an open cylindrical configuration with adjacent windings forming overlapping regions of ePTFE covering bonded to one another. The shape memory endoluminal stent is fabricated from a shape memory alloy which exhibits either shape memory or pseudoelastic properties or from an elastic material having an inherent spring tension such as spring steel, braided stainless steel wire, or composite materials, such as woven or braided carbon fibers.

    摘要翻译: 形状记忆合金和弹性自膨胀腔内支撑结构,其至少部分地包封在基本上整齐的膨胀聚四氟乙烯(“ePTFE”)中。 内窥镜支架具有减小的内腔输送的直径尺寸和较大的体内最终直径直径,被封装在ePTFE覆盖物中,沿着沿内腔支架的纵向范围的至少一部分圆周地覆盖管腔和囊腔壁 。 支架和ePTFE覆盖物螺旋缠绕成开放的圆柱形构造,相邻的绕组形成覆盖彼此结合的ePTFE的重叠区域。 形状记忆腔内支架由具有形状记忆或假弹性特征的形状记忆合金或具有固有弹簧张力的弹性材料制成,例如弹簧钢,编织不锈钢丝或复合材料,例如织造或编织碳 纤维。

    Encapsulated stent
    8.
    发明授权
    Encapsulated stent 失效
    封装支架

    公开(公告)号:US6124523A

    公开(公告)日:2000-09-26

    申请号:US401871

    申请日:1995-03-10

    IPC分类号: A61F2/06 A61F2/02

    摘要: An encapsulated stent including a stent or structural support layer sandwiched between two biocompatible flexible layers. One preferred embodiment has a stent cover which includes a tubular shaped stent that is concentrically retained between two tubular shaped grafts of expanded polytetrafluoroethylene. Another preferred embodiment has a stent graft which includes at least one stent sandwiched between the ends of two tubular shaped grafts wherein at least a portion of the grafts are unsupported by the stent. Still another embodiment includes an articulating stented graft which includes a plurality of stents spaced apart from one another at a predetermined distance wherein each stent is contained between two elongated biocompatible tubular members. The graft/stent/graft assemblies all have inseparable layers.

    摘要翻译: 一种胶囊化支架,其包括夹在两个生物相容性柔性层之间的支架或结构支撑层。 一个优选实施例具有支架盖,其包括同心地保持在膨胀聚四氟乙烯的两个管状移植物之间的管状支架。 另一优选实施例具有支架移植物,其包括夹在两个管状移植物的端部之间的至少一个支架,其中移植物的至少一部分不被支架支撑。 另一个实施例包括铰接式支架移植物,其包括以预定距离彼此间隔开的多个支架,其中每个支架包含在两个细长的生物相容性管状构件之间。 移植物/支架/移植物组件都具有不可分离的层。