FLEXIBLE CATHETER TIP HAVING A SHAPED HEAD
    2.
    发明申请
    FLEXIBLE CATHETER TIP HAVING A SHAPED HEAD 审中-公开
    柔性导管带有形状的头

    公开(公告)号:US20070260224A1

    公开(公告)日:2007-11-08

    申请号:US11683997

    申请日:2007-03-08

    IPC分类号: A61M25/16

    摘要: A catheter tip for attachment with an intravascular balloon catheter that is used within a body lumen is disclosed. The catheter tip includes a body portion having a base that is attached to the balloon catheter. The base defines a proximal end of the catheter tip. A head that is attached to the body portion defines a distal end of the catheter tip. An axial cavity, cooperatively defined by the body portion and the head, extends longitudinally from the proximal to the distal end of the catheter tip. The axial cavity receives a first guidewire along which the catheter is moved within the body lumen. An outer surface of the head is shaped in a predetermined manner to control the magnitude of deflection of a second guidewire that is often twisted about the first guidewire in the lumen so as to prevent catheter obstruction by the guidewires during catheter procedures.

    摘要翻译: 公开了用于与在体腔内使用的血管内气囊导管连接的导管末端。 导管尖端包括具有附接到气囊导管的基部的主体部分。 基部限定了导管尖端的近端。 附接到主体部分的头限定导管末端的远端。 由主体部分和头部协同地限定的轴向腔从导管末端的近端延伸到远端。 轴向空腔容纳第一导丝,导管沿着该第一导丝在体腔内移动。 头部的外表面以预定的方式成形,以控制通常在内腔中围绕第一导丝扭转的第二导丝的偏转量,以防止在导管过程期间导管阻塞导线。

    Crack/fatigue resistant endoprosthesis
    3.
    发明申请
    Crack/fatigue resistant endoprosthesis 审中-公开
    破裂/耐疲劳内假体

    公开(公告)号:US20070255094A1

    公开(公告)日:2007-11-01

    申请号:US11375380

    申请日:2006-03-13

    IPC分类号: A61B1/00

    摘要: An endoprosthesis for delivery in a body lumen can be configured to inhibit crack formation and/or crack propagation, and/or fatigue-induced catastrophic failure by the use of holes extending through an endoprosthetic element. As such, the endoprosthesis can include at least one strut element having a strut width and a strut thickness, the strut thickness being defined by a first side opposite a second side. The element can be characterized by having a plurality of holes extending from the first side to the second side. The plurality of holes can be arranged in an amount, distribution, and/or pattern so as to inhibit crack propagation across the strut length or strut width.

    摘要翻译: 用于在体腔内递送的内用假体可以被配置为通过使用延伸穿过假体内元件的孔来抑制裂缝形成和/或裂纹扩展,和/或疲劳引起的灾难性故障。 因此,内假体可以包括至少一个支柱元件,支柱宽度和支柱厚度,支柱厚度由与第二侧相对的第一侧限定。 元件的特征在于具有从第一侧延伸到第二侧的多个孔。 可以以数量,分布和/或图案布置多个孔,以便抑制穿过支柱长度或支柱宽度的裂纹扩展。

    Endoprosthesis having foot extensions
    4.
    发明申请
    Endoprosthesis having foot extensions 有权
    具有脚伸展的内假体

    公开(公告)号:US20070021834A1

    公开(公告)日:2007-01-25

    申请号:US11479643

    申请日:2006-06-30

    IPC分类号: A61F2/28

    摘要: Endoprosthesis, such as a stent, includes at least one annular element defined by a first set of strut members interconnected to define apices proximate opposite sides of the annular element. The annular element further includes a foot extension extending between at least one pair of circumferentially-adjacent strut members. The foot extension has first and second foot portions extending circumferentially from corresponding ends of the circumferentially-adjacent strut members, and are contoured to provide at least two areas of flexure. The first and second foot portions are joined at a toe portion of the foot extension, and define a circumferentially-directed apex between the pair of circumferentially-adjacent strut members. Preferably, at least one or more additional annular elements, each defined by interconnected strut members, are provided. The annular elements are generally expandable between a delivery configuration and a deployed configuration. The annular elements are longitudinally aligned and connected at connection locations with connectors, wherein at least one of the connectors is constructed of a bio-absorbable material.

    摘要翻译: 内置假体,例如支架,包括至少一个环形元件,所述至少一个环形元件由第一组支柱构件限定,所述第一组撑杆构件互相连接以限定靠近所述环形元件相对侧的顶点。 环形元件还包括在至少一对周向相邻的支柱构件之间延伸的脚延伸部。 脚部延伸部具有从周向相邻的支柱构件的对应端部周向延伸的第一和第二脚部,并且具有轮廓以提供至少两个弯曲区域。 第一和第二脚部在脚延伸部的脚趾部分处连接,并且在一对周向相邻的支柱构件之间限定圆周方向的顶点。 优选地,提供至少一个或多个另外的环形元件,每个环形元件由互连的支柱构件限定。 环形元件通常在输送配置和展开配置之间可扩展。 环形元件在与连接器的连接位置处纵向对准并连接,其中至少一个连接器由生物吸收材料构成。

    Method of reducing rigidity of angioplasty balloon sections
    5.
    发明申请
    Method of reducing rigidity of angioplasty balloon sections 有权
    降低血管成形术气囊截面刚度的方法

    公开(公告)号:US20070016240A1

    公开(公告)日:2007-01-18

    申请号:US11455382

    申请日:2006-06-19

    IPC分类号: A61M29/00

    摘要: A dilatation balloon is fabricated according to a process that forms cavities and indentations in the balloon and/or catheter sections. A length of tubing is axially elongated and radially expanded in a form to provide the requisite biaxial orientation and strength. Then, an excimer laser or another type of laser or mechanical material removal tool is used to remove the polymeric material, virtually without thermal effects. Cavities in the sleeve sections of the balloon are defined and if desired, indentations in the cone sections are defined. Material removal, particularly near the balloon sleeves enables a thinner, more flexible bonding area between the catheter shaft and the balloon. Further, the indentations along the cone sections enables tighter wrapping of the balloon for a reduced delivery profile. Rigidity near the sleeves is reduced for better maneuverability of the catheter in tortuous passageways.

    摘要翻译: 根据在球囊和/或导管部分中形成空腔和凹陷的方法制造扩张球囊。 一段长度的管材是轴向伸长的并以一种形式径向扩张以提供必要的双轴取向和强度。 然后,使用准分子激光器或其他类型的激光或机械材料去除工具来去除聚合物材料,实际上没有热效应。 气囊的套筒部分中的腔被限定,并且如果需要,限定锥形部分中的凹陷。 材料去除,特别是靠近气球套筒,能够在导管轴和球囊之间形成更薄,更灵活的粘结区域。 此外,沿着锥形部分的凹陷使得气囊能够更紧密地包裹以减少输送轮廓。 袖子附近的刚性减少,导致导管在弯曲通道中的更好的机动性。

    Bifurcation stent delivery catheter assembly and method
    6.
    发明申请
    Bifurcation stent delivery catheter assembly and method 审中-公开
    分叉支架输送导管组装及方法

    公开(公告)号:US20060287703A1

    公开(公告)日:2006-12-21

    申请号:US11509346

    申请日:2006-08-23

    IPC分类号: A61F2/06

    摘要: A stent delivery system is disclosed for delivering and deploying a radially expandable stent at a strategic orientation and location in a body vessel. The delivery system includes an elongated flexible tubular shaft sized suitably for insertion into the body vessel. A stent deployment assembly includes a distal transition portion supporting a dilator device adapted for radial expansion about a longitudinal axis of the deployment assembly from a non-expanded condition to a radially expanded condition. The dilator device is configured to support the stent thereon in the non-expanded condition and in predetermined orientation relative the deployment assembly. A rotational clutch assembly rotatably mounts the transition portion to a distal portion of the tubular shaft such that the deployment assembly is substantially torsionally isolated from the tubular shaft, about a longitudinal axis of the clutch assembly. This enables the stent deployment assembly to rotate substantially independently of the tubular shaft for strategic orientation of the dilator device during advancement through the body vessel.

    摘要翻译: 公开了用于在体内容器中的战略取向和位置处递送和展开径向可扩张的支架的支架输送系统。 递送系统包括适于插入身体容器中的细长柔性管状轴。 支架展开组件包括支撑扩张器装置的远侧过渡部分,所述扩张器装置适于围绕展开组件的纵向轴线从非扩张状态到径向膨胀状态的径向膨胀。 扩张器装置构造成在非扩张状态下以相对于展开组件的预定取向支撑其上的支架。 旋转离合器组件将过渡部分可旋转地安装到管状轴的远侧部分,使得展开组件围绕离合器组件的纵向轴线与管状轴基本上扭转隔离。 这使得支架展开组件能够基本上独立于管状轴线旋转,以便在穿过身体血管的进展期间扩张器装置的战略取向。

    Stiffening support catheter and methods for using the same
    10.
    发明授权
    Stiffening support catheter and methods for using the same 有权
    加强支撑导管及其使用方法

    公开(公告)号:US07993303B2

    公开(公告)日:2011-08-09

    申请号:US11738384

    申请日:2007-04-20

    IPC分类号: A61M29/00

    摘要: A support catheter that can puncture a heart septum with a guidewire without buckling and that can access difficult to reach arteries such as carotid or renal arteries from the aorta under difficult circumstances is provided. The support catheter comprises a catheter body having a proximal end, a distal end, and an interior wall surface defining a first lumen extending from the proximal end toward the distal end. A second lumen is disposed between the interior wall surface and an outer surface of the catheter body. A plurality of stiffening members is disposed around the second lumen, the plurality of stiffening members being engageable to selectively stiffen the catheter body. In another configuration, the catheter further comprises a second plurality of stiffening members disposed between the first lumen and the second lumen.

    摘要翻译: 提供了一种支撑导管,其可以用导线刺穿心脏隔膜而没有屈曲,并且可以在困难的情况下进入难以到达主动脉的颈动脉或肾动脉的动脉。 支撑导管包括具有近端,远端和限定从近端朝向远端延伸的第一内腔的内壁表面的导管主体。 第二管腔设置在内壁表面和导管主体的外表面之间。 多个加强构件设置在第二内腔周围,多个加强构件可接合以选择性地加强导管主体。 在另一种构造中,导管还包括设置在第一腔和第二腔之间的第二多个加强构件。