利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

7 条记录 (耗时 0.036 秒)

    Endoluminal device delivery system using axially recovering shape memory material
    1.
    发明授权
    Endoluminal device delivery system using axially recovering shape memory material 有权
    使用轴向恢复形状记忆材料的腔内装置输送系统

    公开(公告)号：US06296622B1

    公开(公告)日：2001-10-02

    申请号：US09218117

    申请日：1998-12-21

    申请人： Daniel R. Kurz ,  Rose Y. Wong ,  Crystal K. Sein-Lwyn ,  David A. Ferrera ,  Lok A. Lei ,  Nicholas C. Debeer

    发明人： Daniel R. Kurz ,  Rose Y. Wong ,  Crystal K. Sein-Lwyn ,  David A. Ferrera ,  Lok A. Lei ,  Nicholas C. Debeer

    IPC分类号： A61M1100

    CPC分类号： A61B17/12022 ,  A61B17/1214 ,  A61B2017/00867 ,  A61B2017/1205 ,  A61B2017/12072 ,  A61B2017/12077 ,  A61B2018/00005 ,  A61F2/95

    摘要： The endoluminal device delivery system and method for delivering an endoluminal device within a body lumen uses shape memory material in the form of a tubular collar to engage the endoluminal device during delivery to the desired location. The endoluminal device is engaged internally within the tubular collar either mechanically by crimping the tubular collar around a portion of the endoluminal device, or through an adhesive bond. The tubular collar can be crimped about a rounded portion of the stem of the endoluminal device. Once the endoluminal device is maneuvered through the body lumens to the desired location, it is decoupled from the delivery system by applying heat to the tubular collar of shape memory material. When the tubular collar has been heated to a sufficient temperature, it will transition to a rubbery state and shrink in length, thereby retracting completely back on to the optical fiber, causing the distal end of the optical fiber to engage the endoluminal device and dislodge it from the tubular collar. An interlocking assembly can also be utilized at the stem portion of the endoluminal therapeutic device to releaseably connect the endoluminal therapeutic device to the elongated pusher member. The body of shape memory material can also be bonded to both the pusher member and the endoluminal device, with the tubular collar being scored to break when the tubular collar changes from the stressed configuration to the recovered configuration. A collet can also be mounted to the pusher member and disposed within.

    摘要翻译： 用于在体腔内递送腔内装置的腔内装置递送系统和方法使用呈管状套环形式的形状记忆材料，以在输送到期望位置期间接合腔内装置。 腔内装置通过将管状颈环围绕腔内装置的一部分或通过粘合剂粘合而机械地接合在管状颈部内部。 管状环可围绕内腔装置的茎的圆形部分卷曲。 一旦腔内装置通过体腔流动到期望的位置，则通过将热量施加到形状记忆材料的管状环上而与输送系统分离。 当管状套管已经被加热到足够的温度时，它将转变到橡胶状态并且长度收缩，从而完全退回到光纤上，导致光纤的远端接合腔内装置并将其移开 从管状领。 也可以在腔内治疗装置的茎部处使用互锁组件以将腔内治疗装置可释放地连接到细长的推动器构件。 形状记忆材料的主体还可以结合到推动器构件和腔内装置上，当管状套环从应力构型改变到恢复构型时，管状环被刻痕以破裂。 夹头也可以安装到推动器构件并且设置在其内。

    Variable stiffness fiber optic shaft
    2.
    发明授权
    Variable stiffness fiber optic shaft 有权
    可变刚度光纤轴

    公开(公告)号：US06240231B1

    公开(公告)日：2001-05-29

    申请号：US09219572

    申请日：1998-12-22

    申请人： David A. Ferrera ,  Nicholas C. Debeer ,  Thuzar Han ,  Daniel R. Kurz ,  Rose Y. Wong

    发明人： David A. Ferrera ,  Nicholas C. Debeer ,  Thuzar Han ,  Daniel R. Kurz ,  Rose Y. Wong

    IPC分类号： G02B604

    CPC分类号： G02B6/403 ,  A61B18/24 ,  G02B6/04 ,  G02B6/241 ,  G02B6/3887 ,  G02B23/26

    摘要： The variable stiffness optical fiber shaft includes a optical fiber, and at least one coaxial layer of heat shrink polymer disposed over the optical fiber of a length shorter than the optical fiber, to provide variations in stiffness along the length of the shaft. The variable stiffness optical fiber shaft preferably includes a plurality of coaxial layers of heat shrink polymer encapsulating the optical fiber, extending from the proximal end of the optical fiber toward the distal end, the plurality of coaxial layers having different lengths to provide said optical fiber shaft with varying stiffness over the length of the optical fiber shaft. The plurality of coaxial layers can be arranged in successive progressively shorter coaxial layers, and can be formed of heat shrink polymeric material, such as polyethylene, PTFE, PEEK, PET or PPS. The variable stiffness optical fiber shaft can also include a coaxial strain relief member disposed over the outer coaxial polymer layers at the proximal end, and a connecting hub disposed over the strain relief member. The variable stiffness optical fiber shaft can also include a hypo tube attached to the optical fiber, and a reinforcing braid attached over the optical fiber, as well as a radiopaque marker that can be a reinforcing coil. A shape memory collar can also be attached over the distal end of the optical fiber, with a distal sheath extending over a portion of the shape memory collar. A hub can also be attached over the proximal portion of the optical fiber. A method of constructing the variable stiffness optical fiber shaft is also provided.

    摘要翻译： 可变刚度光纤轴包括光纤，以及设置在比光纤短的长度的光纤上的至少一个热收缩聚合物的同轴层，以提供沿轴的长度的刚度变化。 可变刚度光纤轴优选地包括多个同轴层，其包封光纤的热收缩聚合物，从光纤的近端延伸到远端，多个同轴层具有不同的长度以提供所述光纤轴 在光纤轴的长度上具有变化的刚度。 多个同轴层可以以相继逐渐缩短的同轴层布置，并且可以由热收缩聚合材料如聚乙烯，PTFE，PEEK，PET或PPS形成。 可变刚度光纤轴还可以包括设置在近端的外同轴聚合物层上的同轴应变消除构件和设置在应变消除构件上的连接毂。 可变刚度光纤轴还可以包括附接到光纤的低管，以及附着在光纤上的加强编织物，以及可以是加强线圈的不透射线的标记。 形状记忆轴环还可以附接在光纤的远端上，远端鞘在形状记忆颈圈的一部分上延伸。 轮毂也可以附着在光纤的近端部分上。 还提供了构造可变刚度光纤轴的方法。

    Corewire actuated delivery system with fixed distal stent-carrying extension
    3.
    发明授权
    Corewire actuated delivery system with fixed distal stent-carrying extension 有权
    具有固定远端支架延伸的Corewire致动输送系统

    公开(公告)号：US07651521B2

    公开(公告)日：2010-01-26

    申请号：US10991721

    申请日：2004-11-18

    申请人： Dai T. Ton ,  Julian Nikolchev ,  Nicholas C. Debeer ,  William R. George

    发明人： Dai T. Ton ,  Julian Nikolchev ,  Nicholas C. Debeer ,  William R. George

    IPC分类号： A61F2/84

    CPC分类号： A61M25/104 ,  A61F2/86 ,  A61F2/95 ,  A61F2/966 ,  A61M2025/0042 ,  A61M2025/09008

    摘要： Medical device and methods for delivery or implantation of prostheses within hollow body organs and vessels or other luminal anatomy are disclosed. The subject technologies may be used in the treatment of atherosclerosis in stenting procedures. For such purposes, a self-expanding stent is deployed in connection with an angioplasty procedure with a corewire actuated delivery system having a fixed distal stent-carrying extension. Withdrawal of the corewire retracts a restraint freeing the stent from a collapsed state, whereupon the stent assumes an expanded configuration set in apposition to the interior surface of a vessel lumen in order to help maintain the vessel open.

    摘要翻译： 公开了用于在中空身体器官和血管或其它腔解剖学中输送或植入假体的医疗装置和方法。 主题技术可用于治疗支架术中的动脉粥样硬化。 为了这样的目的，自扩张支架与血管成形术程序相结合，其中芯线致动递送系统具有固定的远侧支架支架延伸部。 芯线的退出缩回了将支架从折叠状态释放的限制，于是支架采取与血管内腔的内表面相一致的扩张构型，以帮助维持血管开放。

    Sutureless lead retention features
    5.
    发明授权
    Sutureless lead retention features 有权
    无缝导线保留功能

    公开(公告)号：US09044592B2

    公开(公告)日：2015-06-02

    申请号：US12022135

    申请日：2008-01-29

    申请人： Mir A. Imran ,  Albert G. Burdulis ,  Kamran Behzadian ,  Fred I. Linker ,  Nicholas C. Debeer ,  Arturo Rosqueta

    发明人： Mir A. Imran ,  Albert G. Burdulis ,  Kamran Behzadian ,  Fred I. Linker ,  Nicholas C. Debeer ,  Arturo Rosqueta

    IPC分类号： A61N1/05

    CPC分类号： A61N1/0558 ,  A61N1/057 ,  A61N2001/0585

    摘要： A system includes a lead having a lead body and at least one electrode; and a retention feature disposed along the lead body proximal to the at least one electrode and configured to assist in atraumatically anchoring the lead to nearby tissue when the lead is positioned in the body. A system includes a lead having a lead body and at least one electrode; and a coiled retention feature disposed along the lead body proximal to the at least one electrode and configured to assist in anchoring the lead to nearby tissue when the lead is positioned in a body. A lead for stimulating a target neural tissue includes an elongate body; at least one electrode disposed along the elongate body; and a passive retention feature disposed along the lead body proximal to the at least one electrode and configured to assist in anchoring the elongate body to tissue near the target neural tissue.

    摘要翻译： 一种系统包括具有引线体和至少一个电极的引线; 以及保持特征，沿着所述引线体设置在所述至少一个电极的近侧，并且被配置为当所述引线位于所述主体中时辅助将所述引线无损伤地固定到附近的组织。 一种系统包括具有引线体和至少一个电极的引线; 以及螺旋保持特征，沿着所述引线体设置在所述至少一个电极的近侧，并且被配置为当所述引线位于身体中时辅助将引线固定到附近的组织。 用于刺激靶神经组织的引线包括细长体; 沿着所述细长体设置的至少一个电极; 以及被动保持特征，沿着所述引线体设置在所述至少一个电极的近侧，并且被配置成有助于将所述细长体锚固到所述靶神经组织附近的组织。

    SUTURELESS LEAD RETENTION FEATURES
    7.
    发明申请
    SUTURELESS LEAD RETENTION FEATURES 有权
    无懈可击的铅保持功能

    公开(公告)号：US20080183257A1

    公开(公告)日：2008-07-31

    申请号：US12022135

    申请日：2008-01-29

    申请人： Mir A. Imran ,  Albert G. Burdulis ,  Kamran Behzadian ,  Fred I. Linker ,  Nicholas C. Debeer ,  Arturo Rosqueta

    发明人： Mir A. Imran ,  Albert G. Burdulis ,  Kamran Behzadian ,  Fred I. Linker ,  Nicholas C. Debeer ,  Arturo Rosqueta

    IPC分类号： A61N1/05

    CPC分类号： A61N1/0558 ,  A61N1/057 ,  A61N2001/0585

    摘要： A system includes a lead having a lead body and at least one electrode; and a retention feature disposed along the lead body proximal to the at least one electrode and configured to assist in atraumatically anchoring the lead to nearby tissue when the lead is positioned in the body. A system includes a lead having a lead body and at least one electrode; and a coiled retention feature disposed along the lead body proximal to the at least one electrode and configured to assist in anchoring the lead to nearby tissue when the lead is positioned in a body. A lead for stimulating a target neural tissue includes an elongate body; at least one electrode disposed along the elongate body; and a passive retention feature disposed along the lead body proximal to the at least one electrode and configured to assist in anchoring the elongate body to tissue near the target neural tissue.

    摘要翻译： 一种系统包括具有引线体和至少一个电极的引线; 以及保持特征，沿着所述引线体设置在所述至少一个电极的近侧，并且被配置为当所述引线位于所述主体中时辅助将所述引线无损伤地固定到附近的组织。 一种系统包括具有引线体和至少一个电极的引线; 以及螺旋保持特征，沿着所述引线体设置在所述至少一个电极的近侧，并且被配置为当所述引线位于身体中时辅助将引线固定到附近的组织。 用于刺激靶神经组织的引线包括细长体; 沿着所述细长体设置的至少一个电极; 以及被动保持特征，沿着所述引线体设置在所述至少一个电极的近侧，并且被配置成有助于将所述细长体锚固到所述靶神经组织附近的组织。