Intraluminal flexible stent device
    5.
    发明授权
    Intraluminal flexible stent device 失效
    管腔内柔性支架装置

    公开(公告)号:US08052738B2

    公开(公告)日:2011-11-08

    申请号:US12052269

    申请日:2008-03-20

    申请人: Michael Craven

    发明人: Michael Craven

    IPC分类号: A61F2/06

    摘要: A stent made up of at least two connected bands, each band having a pattern of undulations formed from long, short and mid-sized segments connected together by turns. In particular, the pattern includes a repeating series having five segments: a long segment, a short segment, a mid-sized segment, a mid-sized segment, a short segment (LSMMS). When adjacent bands are connected together to form the stent body, the LSMMS segment configuration forms a series of consecutive tapered gaps between the consecutive unconnected close ended turns of adjacent bands which provide greater flexibility for the stent. The series of consecutive tapered gaps allow the stent to flex with little or no interference with adjacent bands when the stent is tracked around a small radius bend in a vessel. In addition, the length of the longest rigid element of the stent is decreased to further improve flexibility. A rigid element is formed by the lengths of the segments on both sides of a connection between adjacent bands. By decreasing the length of this rigid element, the length which must be tracked around the bends of a vessel is shortened and thus the stent is easier to advance.

    摘要翻译: 由至少两个连接的带构成的支架,每个带具有由长,短和中等尺寸的片段形成的波纹图案,其由匝连接在一起。 特别地,该图案包括具有五个段的重复序列:长段,短段,中等段,中等段,短段(LSMMS)。 当相邻带连接在一起以形成支架体时,LSMMS段构型在相邻带的连续未连接的近端匝之间形成一系列连续的锥形间隙,这为支架提供了更大的灵活性。 一系列连续的锥形间隙允许支架在邻近带的几乎或不干涉下弯曲,当支架围绕容器中的小半径弯曲进行跟踪时。 此外,支架的最长刚性元件的长度减小以进一步提高柔韧性。 刚性元件由相邻带之间的连接的两侧上的段的长度形成。 通过减小该刚性元件的长度,必须围绕容器弯曲部追踪的长度被缩短,因此支架更容易前进。

    Base metal recovery from a tailings dump by bacterial oxidation
    6.
    发明授权
    Base metal recovery from a tailings dump by bacterial oxidation 失效
    通过细菌氧化从尾矿倾倒中回收碱金属

    公开(公告)号:US07018593B1

    公开(公告)日:2006-03-28

    申请号:US10069120

    申请日:2000-08-31

    IPC分类号: C22B3/18 C22B15/00

    摘要: A method of recovering base metal from a tailings dump which includes the steps of: aerating a surface layer of the dump; adjusting the pH and the moisture content of the surface layer to provide conditions favourable for bacterial oxidation of sulphide minerals; allowing bacterial oxidation to take place for a controlled period, after the controlled period removing the oxidized surface layer and adding water thereto for form a slurry; separating the slurry into solids and a solution; and recovering base metal from the solution.

    摘要翻译: 一种从尾矿堆放中回收贱金属的方法,该方法包括以下步骤:对倾倒物的表面层进行曝气; 调整表面层的pH值和含水量,以提供有利于硫化物矿物细菌氧化的条件; 允许细菌氧化发生在受控期间,在控制期间除去氧化的表面层并向其中加水以形成浆料; 将浆料分离成固体和溶液; 并从溶液中回收贱金属。

    Apparatus and Method for Forming a Wave Form for a Stent From a Wire
    9.
    发明申请
    Apparatus and Method for Forming a Wave Form for a Stent From a Wire 审中-公开
    用于从电线形成支架的波形的装置和方法

    公开(公告)号:US20100269950A1

    公开(公告)日:2010-10-28

    申请号:US12428581

    申请日:2009-04-23

    IPC分类号: B21F45/00

    CPC分类号: B21F1/04 A61F2/90 B21F45/008

    摘要: An apparatus for forming a wave form for a stent from a wire includes a first forming member configured to move substantially parallel to a first axis and to move substantially parallel to a second axis that is orthogonal to the first axis, and a second forming member configured to move substantially parallel to the first axis and to move substantially parallel to the second axis. The second forming member is positioned opposite from the first forming member relative to the second axis along which the wire is configured to travel. The apparatus includes a controller configured to control movement of the first forming member relative to the wire and to control movement of the second forming member relative to the wire so that the first forming member and the second forming member deform the wire in opposite directions to form a portion of the wave form.

    摘要翻译: 一种用于从电线形成支架波形的装置包括构造成基本上平行于第一轴线移动并基本上平行于与第一轴线正交的第二轴线移动的第一形成部件,以及构造成 基本平行于第一轴线移动并基本上平行于第二轴线移动。 第二成形构件相对于第二轴定位成与第一成形构件相对,线沿其构造成行进。 该装置包括:控制器,被配置为控制第一成形构件相对于导线的运动,并且控制第二成形构件相对于线的运动,使得第一成形构件和第二成形构件沿相反的方向变形导线,以形成 波形的一部分。

    Vascular Stent and Method of Making Vascular Stent
    10.
    发明申请
    Vascular Stent and Method of Making Vascular Stent 审中-公开
    血管支架和血管支架方法

    公开(公告)号:US20080319535A1

    公开(公告)日:2008-12-25

    申请号:US11767826

    申请日:2007-06-25

    IPC分类号: A61F2/06

    摘要: A stent and method of forming a stent include a wire bent into a waveform spirally wrapped into a hollow cylindrical shape. The waveform includes a first end portion, a middle portion, and a second end portion. The middle portion of the waveform includes a first amplitude and a first period. The first end portion of the waveform includes a first plurality of amplitudes and a first plurality of periods, wherein the first plurality of amplitudes decrease from adjacent the middle portion to a first end of the wire and first plurality of frequencies increase from adjacent the middle portion to the first end of the wire. The waveform may also include a second end portion with a second plurality of amplitudes and a second plurality of periods, wherein the second plurality of amplitudes decrease from adjacent the middle portion to a second end of the wire and the second plurality of frequencies increase from adjacent the middle portion to the second end of the wire.

    摘要翻译: 支架和形成支架的方法包括弯曲成螺旋卷绕成中空圆柱形状的波形的线。 波形包括第一端部,中间部分和第二端部。 波形的中间部分包括第一幅度和第一周期。 波形的第一端部包括第一多个幅度和第一多个周期,其中第一多个振幅从相邻的中间部分延伸到线的第一端,并且第一多个频率从相邻的中间部分增加 到电线的第一端。 波形还可以包括具有第二多个幅度和第二多个周期的第二端部分,其中第二多个幅度从相邻的中间部分到第二端减小,并且第二多个频率从相邻的 线的中间部分到第二端。