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    • 14. 发明申请
    • STENT DELIVERY SYSTEM ALLOWING CONTROLLED RELEASE OF A STENT
    • STENT交付系统允许控制释放一个STENT
    • WO2006014767A1
    • 2006-02-09
    • PCT/US2005/025824
    • 2005-07-22
    • COOK INCORPORATEDPARKER, Fred, T.
    • PARKER, Fred, T.
    • A61F2/06
    • A61F2/91A61F2/86A61F2/915A61F2/95A61F2002/91533A61F2002/91575A61F2002/9665A61F2220/0041A61F2230/0054A61F2250/0039
    • A stent delivery system includes a stept having at least one eyelet and at feast one rivet and a holder supporting the stept, wherein the holder includes a first section having a first diameter and a second section having a second diameter. A sheath covers the stept and the holder. The rivets are attached to each of the eyelets. A first inner diameter of the stent at the position of the rivets is smaller than a second inner diameter of the stept at other positions because the rivets protrude inwardly. A shoulder is formed on the holder due to the difference between the first diameter and the second diameter of the holder. The shoulder is positioned distally adjacent the rivets. The shoulder interferes with the protruding rivets, thereby restraining the longitudinal movement of the stept relative to the holder. Although the sheath is pulled back, the stem does not jump out of the stem delivery system. As a result, the stem delivery system allows the stem to be released in a controlled manner upon its deployment.
    • 支架输送系统包括具有至少一个孔眼并且盛装一个铆钉的踏板和支撑踏板的支架,其中该支架包括具有第一直径的第一部分和具有第二直径的第二部分。 护套覆盖梯子和支架。 铆钉附着在每个孔眼上。 铆钉的位置处的支架的第一内径小于其他位置处的踏板的第二内径,因为铆钉向内突出。 由于保持器的第一直径和第二直径之间的差异,在支架上形成有肩部。 肩部位于远离铆钉的位置。 肩部干涉突出的铆钉,从而限制纵向的i /
    • 15. 发明申请
    • CANNULA STENT
    • WO2003030786A2
    • 2003-04-17
    • PCT/US2002/032338
    • 2002-10-09
    • WILLIAM COOK EUROPE APSCOOK INCORPORATED
    • HANSEN, Palle, M.PARKER, Fred, T.EHRLINSPIEL, Michael
    • A61F2/06
    • A61F2/91A61F2/915A61F2002/91516A61F2002/91525A61F2002/91533A61F2002/91558A61F2002/91575A61F2230/0054
    • A stent (30) formed from cannula and having flexible segments (31) and high hoop strength segments (32) alternating therealong. Longitudinal struts or tie bars (41) interconnect the segments. Minimal length reduction of the strut occurs upon expansion. In the high hoop strength segment (32), struts (37) in a zig-zag configuration (Gianturco Z-stent) are initially parallel in the unexpanded strut condition. In the flexible segment (31), struts (58) extend from a respective C shaped bend (59) to converge at the opposite ends thereof when unexpanded. In one embodiment, certain adjacent struts (39-41) of the hoop segment are spaced apart by elongated openings or gaps (46, 48) interposed therebetween and interconnected at their respective ends (42, 44) to form a T-shaped strut interconnection (45). The selected width (50, 51) of the first and third struts (54, 57) increases toward the ends (47, 48) of the elongated openings (46, 48) adjacent the strut interconnection (45). This strut width increase about one end of the strut significantly reduces the tensile strain exhibited about the opening end when the stent is radially expanded during manufacture. The tip length (52, 55) of the struts about the interconnection (45) is also adjusted (increased) along with the other C-shaped strut interconnections (59, 71) to further distribute the tensile strain developed during radial expansion.
    • 支架(30)由插管形成并且具有柔性片段(31)和沿其交替的高环箍强度片段(32)。 纵向支柱或连杆(41)将这些部分互连。 扩张时最小长度减少。 在高箍强度段(32)中,呈Z字形构造的支柱(37)(Gianturco Z-支架)最初平行于未膨胀支柱状态。 在柔性部分(31)中,当未扩张时,支柱(58)从相应的C形弯曲部(59)延伸以会聚在其相对端处。 在一个实施例中,箍段的某些相邻支柱(39-41)由插入其间的细长开口或间隙(46,48)间隔开并且在其相应端部(42,44)处互连以形成T形支柱互连 (45)。 第一和第三支柱(54,57)的选定宽度(50,51)朝向邻近支柱互连(45)的细长开口(46,48)的端部(47,48)增大。 当支架在制造期间径向膨胀时,围绕支杆的一端的该支杆宽度增加显着减小了关于开口端所展现的拉伸应变。 围绕互连(45)的支柱的尖端长度(52,55)也与其他C形支柱互连(59,71)一起被调整(增大),以进一步分布在径向膨胀期间产生的拉伸应变。 p>
    • 17. 发明申请
    • COATED STENT
    • 涂层
    • WO2010024882A1
    • 2010-03-04
    • PCT/US2009/004832
    • 2009-08-25
    • COOK INCORPORATEDPARKER, Fred, T.
    • PARKER, Fred, T.
    • A61F2/82B05D1/00
    • A61F2/07A61F2/915A61F2002/072A61F2240/001
    • A coated stent (20) for use in a medical procedure and methods of manufacturing the coated stent (20) are described. A stent component (30) has an expanded state in which an inner diameter (d s ) of the stent (30) is less than or equal to an outer diameter (d c2 ) of a coating (40), thereby causing an inner surface (35) of the stent (30) to engage the outer surface (42) of the coating (40). In one exemplary method of manufacture, the stent (30) is disposed over the coating (40) when the coating (40) is provided with a first, smaller outer diameter (d c1 ). The coating (40) then is radially expanded to a second, larger outer diameter (d C2 ), which is greater than or equal to the inner diameter (d s ) of the stent (30), to cause the outer surface (42) of the coating (40) to engage the inner surface (35) of the stent (30).
    • 描述了用于医疗过程的涂覆支架(20)和制造涂层支架(20)的方法。 支架构件(30)具有膨胀状态,其中支架(30)的内​​径(ds)小于或等于涂层(40)的外径(dc2),从而使内表面(35) )以接合涂层(40)的外表面(42)。 在一种示例性制造方法中,当涂层(40)设置有第一较小外径(dc1)时,支架(30)设置在涂层(40)上方。 然后将涂层(40)径向扩张到大于或等于支架(30)的内​​径(ds)的第二较大外径(dC2),以使得外护罩(40)的外表面(42) 涂层(40)以与支架(30)的内​​表面(35)接合。
    • 18. 发明申请
    • APPARATUS AND METHODS FOR DEPLOYING SELF-EXPANDING STENTS
    • 用于自我扩张的装置和方法
    • WO2008153765A2
    • 2008-12-18
    • PCT/US2008/006643
    • 2008-05-23
    • COOK INCORPORATEDPARKER, Fred, T.
    • PARKER, Fred, T.
    • A61F2/84
    • A61F2/95A61F2/966
    • Apparatus and methods are provided for improved deployment of self-expanding stents. One advantage of the improved delivery system is that energy storage within a portion of an outer sheath and/or an inner tube may be reduced during the deployment of the stent. In a first embodiment, the outer sheath and the inner tube may be coupled together using a plurality of engaging threaded members, such that circumferential rotation of the inner tube with respect to the outer sheath retracts the outer sheath to deploy the stent. In an alternative embodiment, a fluid reservoir may be provided between the inner tube and the outer sheath. A proximal sealing ring may be disposed annularly between the inner tube and the outer sheath, such that when the fluid reservoir is filled, the proximal sealing ring is urged proximally to engage and retract the outer sheath. Using these techniques, energy build-up in the outer sheath and/or inner tube may be substantially reduced and improved accuracy in deploying the stent may be achieved.
    • 提供了用于改进自扩张支架部署的装置和方法。 改进的输送系统的一个优点是在支架的展开期间可以减少外护套和/或内管的一部分内的能量储存。 在第一实施例中,外护套和内管可以使用多个接合螺纹构件联接在一起,使得内管相对于外护套的周向旋转缩回外护套以展开支架。 在替代实施例中,可以在内管和外护套之间设置流体储存器。 近端密封环可以环形地设置在内管和外护套之间,使得当流体储存器被填充时,近端密封环被向近侧推动以接合和缩回外护套。 使用这些技术,可以显着地减少在外护套和/或内管中的能量积累,并且可以实现部署支架的提高的精度。