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1. 发明授权

US06743252B1 Cannula stent 有权
标题翻译：插管支架
公开(公告)号：US06743252B1
公开(公告)日：2004-06-01
申请号：US09464895
申请日：1999-12-16
申请人： Brian L. Bates , Dale T. Berry , Neal E. Fearnot , Coy M. Herald , Palle M. Hansen , Jesper Thyregod
发明人： Brian L. Bates , Dale T. Berry , Neal E. Fearnot , Coy M. Herald , Palle M. Hansen , Jesper Thyregod
IPC分类号： A61F206
CPC分类号： A61F2/915 , A61F2/91 , A61F2002/91516 , A61F2002/91525 , A61F2002/91533 , A61F2002/91575 , A61F2230/0054
摘要： A stent (10) formed from cannula and having flexible segments (11) and high hoop strength segments (12) alternating therealong. Axial tie bars (21,22) interconnect the segments; minimal length reduction would occur upon expansion. In the high hoop strength segment (12), struts (16) are initially parallel in the unexpanded strut condition, while in the flexible segment (11), struts (14) extend from a respective bight (15) to converge at distal ends when unexpanded. In one embodiment, certain adjacent struts (16) of the hoop segment are spaced apart by a large gap (20) while others are spaced apart by a small gap (18). In another embodiment all the struts (16) of the hoop segment are spaced apart uniformly from each other (or from an axial tie bar) by a small gap (23), resulting in minimizing the occurrence of fatigue of high-stress sites upon expansion/contraction cycles from continuous pulsatile events.
摘要翻译：由套管形成并具有柔性段（11）和高环箍强度段（12）的支架（10）。轴向连杆（21,22）互连该段; 膨胀时会发生最小的长度减小。在高箍强度段（12）中，支柱（16）最初在未膨胀的支柱状态下平行，而在柔性段（11）中，支柱（14）从相应的弯曲部（15）延伸以在远端会聚，未膨胀在一个实施例中，环形节段的某些相邻的支柱（16）由较大的间隙（20）间隔开，而另一些间隔开一小间隙（18）。在另一个实施例中，环形节段的所有支柱（16）彼此均匀地（或从轴向连接杆）间隔开小间隙（23），从而最小化膨胀时高应力位点的疲劳的发生 /来自连续脉动事件的收缩周期。

2. 发明授权

US06231598B1 Radially expandable stent 有权
标题翻译：径向扩张支架
公开(公告)号：US06231598B1
公开(公告)日：2001-05-15
申请号：US09160122
申请日：1998-09-24
申请人： Dale T. Berry , Coy M. Herald , Brian L. Bates , Scott E. Boatman , Michael C. Hoffa , Neal E. Fearnot , William D. Voorhees, III
发明人： Dale T. Berry , Coy M. Herald , Brian L. Bates , Scott E. Boatman , Michael C. Hoffa , Neal E. Fearnot , William D. Voorhees, III
IPC分类号： A61F206
CPC分类号： A61F2/915 , A61F2/88 , A61F2/91 , A61F2002/91508 , A61F2002/91516 , A61F2002/91525 , A61F2002/91533 , A61F2002/91558 , A61F2002/91566 , A61F2002/91575 , A61F2002/91583 , A61F2230/0054 , A61F2250/0036 , A61F2250/0098 , A61L31/022 , A61L31/18
摘要： A radially expandable stent (10) made from a cannula or sheet of biocompatible material that includes at least one longitudinal segment (14) comprised of a series of laterally interconnected closed cells (13). Each closed cell of a longitudinal segment is defined laterally by a pair of longitudinal struts (15, 16) that are interconnected at each end by a circumferentially adjustable member (19, 20). When the stent is expanded using a balloon (47), the opposing circumferentially adjustable members deform to allow circumferential expansion of the longitudinal segment, while the length of the segment, as defined by the longitudinal struts, is maintained. Self-expanding versions of the stent utilize a nickel-titanium alloy. Adjacent longitudinal segments are joined by flexible interconnection segments (21) that permit the stent to bend laterally. The flexible interconnection segment is comprised of curvilinear struts (22, 23) that form a series of serpentine bends (81) that distribute lateral bending forces. In a preferred embodiment, a short strut interconnects longitudinal segments and an adjacent interconnection segment. Each interconnection strut attaches to the longitudinal segment within a region (27) at the end (17) of a longitudinal strut (15) dividing two adjacent closed cells.
摘要翻译：一种由包括生物相容性材料的套管或片材制成的径向可扩张的支架（10），其包括由一系列横向互连的闭孔（13）构成的至少一个纵向段（14）。纵向段的每个闭合单元由一对纵向支柱（15,16）侧向地限定，所述纵向支柱在每个端部由周向可调节构件（19,20）互连。当使用球囊（47）扩张支架时，相对的周向可调部件变形以允许纵向段的周向膨胀，而由纵向支柱限定的段的长度保持。自扩张型支架采用镍钛合金。相邻的纵向段通过柔性互连段（21）连接，允许支架横向弯曲。柔性互连部分由曲线支柱（22,23）组成，其形成分布横向弯曲力的一系列蛇形弯曲部（81）。在优选实施例中，短支柱将纵向段和相邻互连段互连。每个互连支柱在分开两个相邻闭孔的纵向支柱（15）的端部（17）处的区域（27）内附接到纵向段。

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