利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

16 条记录 (耗时 0.021 秒)

    Recoilable thrombosis filtering device and method
    1.
    发明申请
    Recoilable thrombosis filtering device and method 审中-公开
    可回收血栓形成过滤装置及方法

    公开(公告)号：US20050131452A1

    公开(公告)日：2005-06-16

    申请号：US11043835

    申请日：2005-01-26

    申请人： Steven Walak ,  Bernedette Proskoczilo ,  Kristian DiMatteo ,  Robert DeVries

    发明人： Steven Walak ,  Bernedette Proskoczilo ,  Kristian DiMatteo ,  Robert DeVries

    IPC分类号： A61B17/00 ,  A61F2/00 ,  A61F2/01 ,  A61L33/00 ,  A61M1/02 ,  A61M29/00

    CPC分类号： A61F2/01 ,  A61F2002/016 ,  A61F2002/018 ,  A61F2210/0028 ,  A61F2210/0038 ,  A61F2230/005 ,  A61F2230/0067 ,  A61F2230/008

    摘要： A thrombosis filter which can be securely affixed at a selected location in the vascular system of a patient and removed when no longer required. A first embodiment of the thrombosis filter includes a plurality of struts having a first grouping and a second grouping. The first grouping of struts and the second grouping of struts radiate in opposite directions. The free ends of the struts include anchoring elements which anchor into the walls of a blood vessel. At least one grouping of struts is comprised of a shape memory material. When these struts are at body temperature, their free ends engage the wall of the blood vessel. When the temperature of the shape memory alloy struts is selectively varied from body temperature, the struts retract into the body portion of the thrombosis filter. A second embodiment of the thrombosis filter includes a generally cylindrical anchoring portion, and a generally conical filtering portion, the filtering portion includes a plurality of elongated strands interwoven to create a pattern of cells. These strands extend beyond the filtering portion to comprise the anchoring portion. These strands are made of a shape memory material. At body temperature, the thrombus filter takes on an expanded shape. At a temperature other than body temperature, the thrombus filter assumes a contracted shape. When the thrombus filter assumes a contracted shape, the anchoring portion retracts away from the walls of the blood vessel. A method is also disclosed for removing the thrombus filter from a blood vessel. The method comprises changing the temperature of the thrombus filter so that it assumes a retracted shape then pulling the thrombus filter inside the lumen of a retrieval catheter.

    摘要翻译： 一种血栓形成过滤器，其可以牢固地固定在患者的血管系统中的选定位置，并且在不再需要时被去除。 血栓形成过滤器的第一实施例包括具有第一分组和第二分组的多个支柱。 第一组支柱和第二组支柱沿相反方向辐射。 支柱的自由端包括固定在血管壁上的锚定元件。 至少一组支柱由形状记忆材料构成。 当这些支柱处于体温时，其自由端接合血管的壁。 当形状记忆合金支柱的温度从体温选择性地变化时，支柱缩回到血栓形成过滤器的主体部分。 血栓形成过滤器的第二实施例包括大致圆柱形的锚固部分和大致锥形的过滤部分，过滤部分包括交织以形成细胞图案的多个细长股线。 这些股线延伸超过过滤部分以包括锚固部分。 这些股线由形状记忆材料制成。 在体温下，血栓过滤器呈现膨胀形状。 在体温以外的温度下，血栓过滤器呈现收缩形状。 当血栓过滤器呈现收缩形状时，锚定部分从血管的壁缩回。 还公开了从血管中去除血栓滤过器的方法。 该方法包括改变血栓过滤器的温度，使其呈现缩回形状，然后将血栓过滤器拉回到取出导管的内腔内。

    Composite medical devices
    2.
    发明申请
    Composite medical devices 审中-公开
    复合医疗器械

    公开(公告)号：US20050055045A1

    公开(公告)日：2005-03-10

    申请号：US10659490

    申请日：2003-09-10

    申请人： Robert DeVries ,  Kristian DiMatteo ,  Steven Walak

    发明人： Robert DeVries ,  Kristian DiMatteo ,  Steven Walak

    IPC分类号： A61F2/00 ,  A61F2/01 ,  A61F2/90 ,  A61M29/00

    CPC分类号： A61F2/01 ,  A61F2/90 ,  A61F2002/016 ,  A61F2220/0008 ,  A61F2230/005 ,  A61F2230/0067 ,  A61F2230/0069 ,  A61F2250/0018

    摘要： Composite medical devices for placement within a body vessel are disclosed. A composite medical device may include an intravascular filter, stent, stent graft, or other implantable device having a relatively stiff outer member, and an elastic inner member. In some embodiments, the composite medical device may comprise an intravascular filter having a plurality of elongated legs formed from a composite material. In other embodiments, the composite medical device may comprise a composite stent or stent graft formed of composite threads. Selective portions of the outer member can be removed to expose the elastic inner member, thereby forming a flexibility region on the device.

    摘要翻译： 公开了用于放置在身体容器内的复合医疗装置。 复合医疗装置可以包括血管内过滤器，支架，支架移植物或具有相对刚性的外部构件的其它可植入装置和弹性内部构件。 在一些实施例中，复合医疗装置可以包括具有由复合材料形成的多个细长腿的​​血管内过滤器。 在其他实施例中，复合医疗装置可以包括由复合线形成的复合支架或支架移植物。 可以去除外部构件的选择部分以暴露弹性内部构件，从而在装置上形成柔性区域。

    Flexible needle
    8.
    发明授权
    Flexible needle 有权
    柔性针

    公开(公告)号：US08663168B2

    公开(公告)日：2014-03-04

    申请号：US13556544

    申请日：2012-07-24

    申请人： Yem Chin ,  Paul Scopton ,  Robert DeVries

    发明人： Yem Chin ,  Paul Scopton ,  Robert DeVries

    IPC分类号： A61M5/178

    CPC分类号： A61M25/0084 ,  A61M25/06 ,  Y10T29/49826

    摘要： An endoscopic instrument comprises a first flexible insertion member sized for insertion through a body lumen to a target site and a needle coupled to the insertion member for penetration of tissue, the needle including a plurality of flexibility enhancing grooves formed therein along at least a first portion of the length of the needle.

    摘要翻译： 内窥镜器具包括第一柔性插入部件，其尺寸适于通过体腔插入目标部位，以及连接到用于穿透组织的插入部件的针，所述针包括沿着至少第一部分形成在其中的多个柔性增强槽 针的长度。

    Flexible biopsy collection device and related methods of use
    9.
    发明授权
    Flexible biopsy collection device and related methods of use 有权
    灵活的活检收集装置及相关使用方法

    公开(公告)号：US09125638B2

    公开(公告)日：2015-09-08

    申请号：US11179640

    申请日：2005-07-13

    申请人： Yem Chin ,  Robert DeVries ,  Paul Scopton ,  John Hutchins

    发明人： Yem Chin ,  Robert DeVries ,  Paul Scopton ,  John Hutchins

    IPC分类号： A61B10/02 ,  A61B17/29

    CPC分类号： A61B10/0275 ,  A61B10/0283 ,  A61B2010/0225 ,  A61B2017/2905

    摘要： Embodiments of the invention are directed to a medical device and methods for collecting a tissue sample from a patient's body. The device may include a first tube defining a lumen and an aperture at a distal end of the first tube. A second tube extends within the lumen of the first tube and defines a lumen and slots, where at least some of the slots have sharp edges configured to shear tissue. The second tube is movable relative to the first tube such that the sharp edges cut a plurality of samples from tissue disposed within the aperture.

    摘要翻译： 本发明的实施例涉及用于从患者身体收集组织样本的医疗装置和方法。 该装置可以包括限定内腔的第一管和在第一管的远端处的孔。 第二管在第一管的内腔内延伸并且限定内腔和狭槽，其中至少一些狭槽具有构造成剪切组织的尖锐边缘。 第二管可相对于第一管移动，使得锋利的边缘从设置在孔内的组织切割多个样品。