利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

76 条记录 (耗时 0.04 秒)

    Telescoping Catheter With Electromagnetic Coils for Imaging and Navigation During Cardiac Procedures
    42.
    发明申请
    Telescoping Catheter With Electromagnetic Coils for Imaging and Navigation During Cardiac Procedures 审中-公开
    电磁线圈用于心脏手术过程中成像和导航的伸缩导管

    公开(公告)号：US20070232898A1

    公开(公告)日：2007-10-04

    申请号：US11693854

    申请日：2007-03-30

    申请人： Rany Huynh ,  Nasser Rafiee ,  Nareak Douk ,  Morgan House ,  Alex Hill

    发明人： Rany Huynh ,  Nasser Rafiee ,  Nareak Douk ,  Morgan House ,  Alex Hill

    IPC分类号： A61B5/05 ,  A61M25/00 ,  A61B5/103

    CPC分类号： A61B5/1076 ,  A61B90/36 ,  A61B2017/00039 ,  A61B2090/397

    摘要： An image guided navigation system for mapping at least one of the shape, size and location of a structure within a heart of a patient, including a catheter system having a first catheter with a longitudinally extending lumen, a second catheter having a longitudinally extending lumen and positioned at least partially within and moveable relative to the lumen of the first catheter, an elongated member positioned at least partially within and moveable relative to a lumen of the second catheter, a first detectable marker located at a generally distal end of the first catheter, a second detectable marker located at a generally distal end of the second catheter, and a third detectable marker located at a generally distal end of the elongated member, wherein at least one of the three detectable markers is axially moveable relative to at least one of the other detectable markers.

    摘要翻译： 一种用于映射患者心脏内的结构的形状，尺寸和位置中的至少一个的图像引导导航系统，包括具有具有纵向延伸的内腔的第一导管的导管系统，具有纵向延伸腔的第二导管和 相对于第一导管的内腔至少部分地位于内部并且可移动;细长构件，其至少部分地位于第二导管的内腔内并且可相对于第二导管的内腔移动，第一可检测标记位于第一导管的大致远端， 位于第二导管的通常远端的第二可检测标记和位于细长构件的大体远端的第三可检测标记，其中三个可检测标记中的至少一个相对于至少一个 其他可检测标记。

    Device, system, and method for contracting tissue in a mammalian body
    43.
    发明申请
    Device, system, and method for contracting tissue in a mammalian body 审中-公开
    用于在哺乳动物体内收缩组织的装置，系统和方法

    公开(公告)号：US20070093869A1

    公开(公告)日：2007-04-26

    申请号：US10560986

    申请日：2004-06-21

    申请人： Eliot Bloom ,  Nareak Douk ,  Nasser Rafiee

    发明人： Eliot Bloom ,  Nareak Douk ,  Nasser Rafiee

    IPC分类号： A61B17/08

    CPC分类号： A61B17/068 ,  A61B17/0644 ,  A61B17/10 ,  A61B2017/00243 ,  A61B2017/0641 ,  A61B2017/081 ,  A61F2/2445

    摘要： A device, a system and a method for contracting tissue in a mammalian body. The contracting device comprises a body and a plurality of legs radially splayed there from. Each leg includes a snap-acting spring tip. When a force is applied to the device, the tips operate to transform the device from a deployment state into a treatment state. Each leg may also be bent at one or more deformation elements in response to the application of force. The system comprises a contracting device slidably received within a delivery catheter. The method of contracting tissue in a mammalian body comprises delivering a contracting device in a lumen of a catheter proximate a treatment area, releasing the contracting device from the catheter, positioning legs of the contracting device on tissue to be contracted, exerting a force on the contracting device, transforming the device into a treatment state, and reducing a compass of the tissue in response to the attainment of the treatment state.

    摘要翻译： 用于在哺乳动物体内收缩组织的装置，系统和方法。 收缩装置包括主体和在其上径向张开的多个腿。 每个腿包括弹性弹簧尖。 当力施加到设备时，提示操作以将设备从部署状态转换成处理状态。 响应于施加力，每个腿也可以在一个或多个变形元件处弯曲。 该系统包括可滑动地容纳在输送导管内的收缩装置。 在哺乳动物身体中收缩组织的方法包括将收缩装置输送到靠近治疗区域的导管的内腔中，将收缩装置从导管释放，将收缩装置的腿定位在要收缩的组织上，在其上施加力 收缩装置，将装置转化为治疗状态，以及响应于治疗状态的实现而减少组织的罗盘。

    Cardiac valve annulus restraining device
    44.
    发明申请
    Cardiac valve annulus restraining device 审中-公开
    心脏瓣膜环带限制装置

    公开(公告)号：US20070027533A1

    公开(公告)日：2007-02-01

    申请号：US11193674

    申请日：2005-07-28

    申请人： Nareak Douk

    发明人： Nareak Douk

    IPC分类号： A61F2/24

    CPC分类号： A61F2/2445 ,  A61F2/2433 ,  A61F2/2466 ,  A61F2250/001

    摘要： A catheter based system for treating mitral valve regurgitation includes a restraining device having a flexible member, a plurality of movable anchor members attached to the outer surface of the flexible member, and an adjustment filament attached to the ends of the flexible member. One embodiment of the invention includes a method for attaching a flexible restraining device to the annulus of a mitral valve, and adjusting the length of the adjustment filament attached to the flexible member of the restraining device, thereby reshaping the mitral valve annulus so that the anterior and posterior leaflets of the mitral valve close during ventricular contraction.

    摘要翻译： 用于治疗二尖瓣反流的基于导管的系统包括具有柔性构件的限制装置，附接到柔性构件的外表面的多个可移动锚固构件和附接到柔性构件的端部的调节细丝。 本发明的一个实施例包括一种用于将柔性约束装置附接到二尖瓣环的方法，以及调节附着在约束装置的柔性构件上的调节细丝的长度，从而重新形成二尖瓣环，使前 并且在心室收缩期间二尖瓣的后小叶关闭。

    Sheath catheter having variable over-the-wire length and methods of use
    47.
    发明申请
    Sheath catheter having variable over-the-wire length and methods of use 审中-公开
    护套导管具有可变的线上长度和使用方法

    公开(公告)号：US20050004553A1

    公开(公告)日：2005-01-06

    申请号：US10610817

    申请日：2003-07-02

    申请人： Nareak Douk

    发明人： Nareak Douk

    IPC分类号： A61B17/12 ,  A61F2/00 ,  A61F2/01 ,  A61F2/06 ,  A61M25/00

    CPC分类号： A61M25/0021 ,  A61B17/12022 ,  A61B2017/00991 ,  A61B2017/1205 ,  A61F2/01 ,  A61F2002/011 ,  A61F2002/9528 ,  A61F2250/0065 ,  A61M2025/0004 ,  A61M2025/0175

    摘要： A sheath catheter includes a positioning wire fixedly attached at its distal end to a distal tube. A proximal tube is slidably disposed on the positioning wire proximal of the distal tube and sized so that the distal tube may be nested therein. In one embodiment, a series of coordinating stops are fixed on the tubes so that the distal tube can slide back and forth within the proximal tube but cannot be extracted from the proximal tube. As such, the over-the-wire length of the catheter can be varied. In another embodiment, an additional telescoping portion can be added between the distal tube and the proximal tube for greater control over the length of the sheath catheter. In this embodiment, the tubes are sized so that the middle tube may be nested within the proximal tube and the distal tube may be nested in the middle tube.

    摘要翻译： 护套导管包括定位线，其定位线在其远端固定连接到远端管。 近端管可滑动地设置在远端管的近端的定位线上并且尺寸使得远端管可嵌套在其中。 在一个实施例中，一系列协调止动件固定在管上，使得远端管能够在近端管内来回滑动，但不能从近侧管中抽出。 因此，可以改变导管的线上长度。 在另一个实施例中，可以在远端管和近端管之间添加附加的伸缩部分，以更好地控制护套导管的长度。 在该实施例中，管的尺寸使得中管可以嵌套在近端管内，并且远端管可以嵌套在中管中。

    Hydraulic exchange catheter
    48.
    发明授权
    Hydraulic exchange catheter 失效
    液压交换导管

    公开(公告)号：US6027474A

    公开(公告)日：2000-02-22

    申请号：US164006

    申请日：1998-09-30

    申请人： Nareak Douk ,  William A. Berthiaume

    发明人： Nareak Douk ,  William A. Berthiaume

    IPC分类号： A61M25/01 ,  A61M29/02 ,  A61M37/00

    CPC分类号： A61M25/104 ,  A61M25/0169

    摘要： The invention relates to a catheter device and method of use for exchanging a catheter having a full-length guidewire lumen over a conventional-length guidewire without the use of a guidewire extension or an exchange wire. The catheter device includes an elongated shaft defining an inflation lumen and a guidewire lumen extending longitudinally throughout its length, and a hydraulic exchange lumen extending from the proximal end of the shaft and terminating proximal the distal end of the shaft, wherein the hydraulic exchange lumen is in fluid communication with the guidewire lumen. A balloon is coupled to the distal section of the shaft and is in fluid communication with the inflation lumen. A flow guiding member is disposed within the guiding catheter and functions to redirect the distal flow of pressurized fluid traveling through the hydraulic exchange lumen in a proximal direction through the guidewire lumen.

    摘要翻译： 本发明涉及一种用于在常规长度导丝上更换具有全长导丝管腔的导管的导管装置和方法，而不使用导线延伸部或交换线。 所述导管装置包括细长轴，所述细长轴限定充气腔和在其整个长度上纵向延伸的导丝管腔，以及从所述轴的近端延伸并且在所述轴的远端终止的液压更换腔，其中所述液压更换腔是 与导丝管腔流体连通。 球囊联接到轴的远侧部分并且与膨胀腔流体连通。 流动引导构件设置在引导导管内，并且用于将通过液压更换腔行进的加压流体的远端流动在近端方向上重定向穿过导丝管腔。