Method for Forming a Wave Form Used to Make Wound Stents
    42.
    发明申请
    Method for Forming a Wave Form Used to Make Wound Stents 有权
    形成用于制作伤口支架的波形的方法

    公开(公告)号:US20120012014A1

    公开(公告)日:2012-01-19

    申请号:US12838778

    申请日:2010-07-19

    IPC分类号: B30B13/00

    CPC分类号: B30B15/022 B30B15/26

    摘要: A method for forming a wave form for a stent. The wave form includes a plurality of substantially straight portions and a plurality of curved portions. Each curved portion connects adjacent substantially straight portions. The method includes feeding a formable material between a first die and a second die, the first die having a protruding surface in the shape of the wave form, and the second die having a recessed surface in the shape of the wave form complementing the protruding surface of the first die, pressing the formable material with the protruding surface of the first die into contact with the recessed surface of the second die, and shearing the wave form from the formable material with shearing forces created by the pressing.

    摘要翻译: 一种形成支架波形的方法。 波形包括多个基本上直的部分和多个弯曲部分。 每个弯曲部分连接相邻的基本上直的部分。 该方法包括在第一模具和第二模具之间馈送可成形材料,第一模具具有波形形状的突出表面,并且第二模具具有与波形形状互补的凹形表面 的第一模具,用第一模具的突出表面挤压可成型材料与第二模具的凹入表面接触,并且通过由压制产生的剪切力剪切来自可成形材料的波形。

    Helical Stent with Opposing and/or Alternating Pitch Angles
    43.
    发明申请
    Helical Stent with Opposing and/or Alternating Pitch Angles 有权
    螺旋支架具有相反和/或交替的倾斜角度

    公开(公告)号:US20110264195A1

    公开(公告)日:2011-10-27

    申请号:US12768210

    申请日:2010-04-27

    申请人: Erik Griswold

    发明人: Erik Griswold

    IPC分类号: A61F2/82

    摘要: Waveforms for forming helical stents with opposing and/or alternating pitch angles along their lengths are disclosed. A wire is bent to form a waveform having a series of sinusoidal segments between a first end and a second end thereof. Each sinusoidal segment is longitudinally offset from its adjacent segment(s). Each waveform includes at least one sinusoidal segment having a first portion in which the amplitude between consecutive turns of the wire gradually increases and a longitudinally offset second portion in which the amplitude between consecutive turns of the wire gradually decreases. The waveform is wrapped from one end to the other about a mandrel to form the stent and depending on the arrangement of sinusoidal segments along the waveform may have opposing and/or alternating pitch angles along a section or an entire length of the stent.

    摘要翻译: 公开了用于沿其长度形成具有相对和/或交替的俯仰角的螺旋支架的波形。 线被弯曲以形成在其第一端和第二端之间具有一系列正弦段的波形。 每个正弦曲线段与其相邻的段纵向偏移。 每个波形包括至少一个正弦曲线段,其具有第一部分,其中线的连续匝之间的幅度逐渐增加,并且其中线的连续匝之间的幅度逐渐减小的纵向偏移的第二部分。 波形从围绕心轴的一端缠绕到另一端以形成支架,并且根据沿着波形的正弦曲线段的布置可以沿着支架的截面或整个长度具有相对和/或交替的俯仰角。