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135 条记录 (耗时 0.031 秒)

    Balloon catheters and methods for use
    11.
    发明授权
    Balloon catheters and methods for use 有权
    气球导管及使用方法

    公开(公告)号：US09034025B2

    公开(公告)日：2015-05-19

    申请号：US13602074

    申请日：2012-08-31

    申请人： Archimedes Sanati ,  Farhad Khosravi

    发明人： Archimedes Sanati ,  Farhad Khosravi

    IPC分类号： A61F2/06 ,  A61F2/954 ,  A61F2/95

    CPC分类号： A61F2/954 ,  A61F2/95 ,  A61F2/958 ,  A61F2002/30322 ,  A61F2002/821 ,  A61F2230/0071 ,  A61F2250/0018 ,  A61F2250/0026 ,  A61F2250/0039 ,  A61M25/1002 ,  A61M25/1011

    摘要： Apparatus and methods are provided for flaring a stent deployed within a branch vessel including an ostium communicating with a main vessel, a first end of the stent extending at least partially from the branch. A catheter is provided that includes a first balloon carried on its distal end, and a second balloon that includes a distal section overlying at least a portion of the first balloon and a proximal section. The catheter distal end is introduced into the main vessel and positioned through the ostium and stent into the branch until the first balloon is disposed within the stent. The first balloon is expanded to anchor the stent, and the second balloon is expanded to flare the first end of the stent. Optionally, the first balloon is expanded further, e.g., to expand the stent within the branch body lumen and/or dilate the lesion.

    摘要翻译： 提供了一种装置和方法，用于扩张部署在分支容器内的支架，该支架包括与主容器连通的口，所述支架的第一端至少部分地从所述分支延伸。 提供了一种导管，其包括在其远端承载的第一气囊，以及包括覆盖所述第一气囊的至少一部分的远端部分和近端部分的第二气囊。 将导管远端引入主容器中并定位成通过口和支架进入分支，直到第一气囊置于支架内。 将第一气囊扩张以锚固支架，并且将第二气囊膨胀以扩张支架的第一端。 任选地，第一气囊进一步膨胀，例如，以使分支体腔内的支架膨胀和/或扩张病变。

    Stretchable anti-buckling coiled-sheet stent
    14.
    发明授权
    Stretchable anti-buckling coiled-sheet stent 失效
    可伸缩抗弯卷盘支架

    公开(公告)号：US08092514B1

    公开(公告)日：2012-01-10

    申请号：US09427260

    申请日：1999-10-25

    申请人： Farhad Khosravi ,  Himanshu N. Patel ,  Yi Yang

    发明人： Farhad Khosravi ,  Himanshu N. Patel ,  Yi Yang

    IPC分类号： A61F2/06

    CPC分类号： A61F2/92 ,  A61F2/91 ,  A61F2220/0008 ,  A61F2220/0016 ,  A61F2230/0054 ,  A61F2230/008 ,  A61F2250/0018

    摘要： A stent includes a coiled-up sheet having overlapping inner and outer longitudinal sections extending parallel to a longitudinal axis thereof, and defining a periphery, the coiled-up sheet being unrollable between contracted and enlarged conditions. A plurality of stretchable elements are formed in the coiled-up sheet, the stretchable elements being expandable about the periphery between an unstretched condition to facilitate placement in a delivery device in the contracted condition and a stretched condition to facilitate expansion of the coiled-up sheet to the enlarged condition upon deployment from the delivery device. Preferably, the coiled-up sheet is biased to the enlarged condition, and the stretchable elements are biased to the stretched condition. More preferably, at least one of the biases is provided by a shape memory property of the coiled-up sheet, which is activated by exposing the stent to body temperature.

    摘要翻译： 支架包括具有与其纵向轴线平行延伸的重叠的内部和外部纵向部分并且限定周边的盘绕的片材，所述盘绕的片材在收缩和扩大的条件之间不可展开。 多个可拉伸元件形成在盘绕的片材中，可拉伸元件可以在未拉伸状态下围绕周边扩张，以便于在收缩状态下放置在输送装置中，并且拉伸条件以便于卷起片材的膨胀 在从输送装置部署时变为放大状态。 优选地，盘绕的片材被偏压到放大状态，并且可拉伸元件被偏压到拉伸状态。 更优选地，通过将​​支架暴露于体温而被活化的卷曲片的形状记忆特性提供至少一个偏差。

    Vascular filter having articulation region and methods of use in the ascending aorta
    16.
    发明授权
    Vascular filter having articulation region and methods of use in the ascending aorta 有权
    具有关节区域的血管过滤器和在升主动脉中使用的方法

    公开(公告)号：US08052713B2

    公开(公告)日：2011-11-08

    申请号：US11325858

    申请日：2006-01-05

    申请人： Farhad Khosravi ,  L. N. Hopkins ,  Amr Salahieh ,  Jackson F. Demond ,  Jeff A. Krolik

    发明人： Farhad Khosravi ,  L. N. Hopkins ,  Amr Salahieh ,  Jackson F. Demond ,  Jeff A. Krolik

    IPC分类号： A61M29/00

    CPC分类号： A61F2/01 ,  A61F2/013 ,  A61F2002/011 ,  A61F2002/018 ,  A61F2230/0008 ,  A61F2230/008

    摘要： Apparatus and methods are provided for use in filtering emboli from a vessel such as the ascending aorta, wherein a vascular device comprises a support hoop having an articulation region connected near a distal end of an elongated member, a blood permeable sac affixed to the support hoop so that the support hoop forms a mouth of the blood permeable sac, a guide wire, and a delivery sheath. The articulation region comprises a reduced thickness region of the support hoop that prevents kinks from forming in the support hoop when the apparatus is contracted to its delivery state, and curved regions that close the mouth of the sac to prevent material escaping from the sac when the apparatus is collapsed for removal.

    摘要翻译： 提供的装置和方法用于从诸如升主动脉的血管过滤栓塞，其中血管装置包括支撑环，所述支撑环具有连接在细长构件的远端附近的关节区域，固定到支撑环的血液渗透囊 使得支撑环形成可渗透囊的口，导丝和输送鞘。 铰接区域包括支撑环的减小的厚度区域，当装置收缩到其输送状态时，防止在支撑环中形成扭结;以及弯曲区域，其闭合囊的口以防止材料从囊中逸出， 装置被塌缩以便移除。

    APPARATUS AND METHODS FOR TREATING PSEUDOANEURYSMS
    17.
    发明申请
    APPARATUS AND METHODS FOR TREATING PSEUDOANEURYSMS 审中-公开
    用于治疗神经病变的装置和方法

    公开(公告)号：US20090088723A1

    公开(公告)日：2009-04-02

    申请号：US12167985

    申请日：2008-07-03

    申请人： Farhad Khosravi ,  Syed Hasan Askari

    发明人： Farhad Khosravi ,  Syed Hasan Askari

    IPC分类号： A61M31/00

    CPC分类号： A61B17/12022 ,  A61B17/0057 ,  A61B17/12113 ,  A61B17/12186 ,  A61B17/1219

    摘要： Apparatus and methods are provided for treating pseudoaneurysms using freeze-dried hydrogel particles that expand and/or absorb fluid within a pseudoaneurysm. An apparatus includes an elongate tubular member including a proximal end, a distal end sized for introduction through tissue into a pseudoaneurysm or other body cavity, and a lumen communicating with an outlet on the distal end. The particles are provided within the lumen and dischargeable through the outlet, e.g., using a plunger or other actuator. The apparatus may include one or more of a bled-back channel, flow sensor, pressure sensor, and markers for monitoring the distal end during introduction into the pseudoaneurysm.

    摘要翻译： 提供了使用在假性动脉瘤内扩张和/或吸收流体的冷冻干燥的水凝胶颗粒来治疗假性动脉瘤的装置和方法。 一种装置包括细长管状构件，其包括近端，尺寸适于通过组织引入假动脉瘤或其他体腔的远端，以及与远端上的出口连通的管腔。 颗粒设置在内腔内并可通过出口排出，例如使用柱塞或其他致动器。 该装置可以包括一个或多个倒流通道，流量传感器，压力传感器和用于在引入假动脉瘤期间监测远端的标记。

    Coiled-sheet stent-graft with slidable exo-skeleton
    19.
    发明授权
    Coiled-sheet stent-graft with slidable exo-skeleton 失效
    具有可滑动外骨架的卷片支架移植物

    公开(公告)号：US07223284B2

    公开(公告)日：2007-05-29

    申请号：US10635394

    申请日：2003-08-05

    申请人： Farhad Khosravi ,  Himanshu N. Patel

    发明人： Farhad Khosravi ,  Himanshu N. Patel

    IPC分类号： A61F2/06

    CPC分类号： A61F2/07 ,  A61F2/848 ,  A61F2/89 ,  A61F2/91 ,  A61F2/915 ,  A61F2/92 ,  A61F2/958 ,  A61F2002/065 ,  A61F2002/072 ,  A61F2002/075 ,  A61F2002/8486 ,  A61F2220/0008 ,  A61F2220/0016 ,  A61F2220/005 ,  A61F2220/0066 ,  A61F2220/0075 ,  A61F2230/0054 ,  A61F2250/0039

    摘要： A stent-graft having an exo-skeleton attached to a tubular graft, the tubular graft having a peripheral wall defining a lumen therein extending between first and second ends. One or more support elements, defining the exo-skeleton, are attached to the tubular graft, each support element extending generally peripherally around the tubular graft, each support element including generally axial segments and generally peripheral segments. A plurality of first fasteners attach the plurality of support elements to the wall of the tubular graft, at least one generally axial segment being slidably engaged by each first fastener. A plurality of second fasteners also attach the plurality of support elements to the wall of the tubular graft, each second fastener substantially anchoring a generally peripheral segment of the respective support element to the wall of the tubular graft. The stent-graft also includes first and second stents on the first and second ends for substantially anchoring the respective ends within a body passage.

    摘要翻译： 具有附着到管状移植物上的外骨骼的支架移植物，所述管状移植物具有在第一和第二端之间限定内腔的周边壁。 限定外骨架的一个或多个支撑元件附接到管状移植物，每个支撑元件围绕管状移植物大致周边延伸，每个支撑元件包括大致轴向的段和大体上的周边段。 多个第一紧固件将多个支撑元件连接到管状移植物的壁上，至少一个大致轴向的段与每个第一紧固件可滑动地接合。 多个第二紧固件还将多个支撑元件附接到管状移植物的壁上，每个第二紧固件基本上将相应支撑元件的大致周边的段固定到管状移植物的壁上。 支架移植物还包括在第一和第二端部上的第一和第二支架，用于将相应端部基本上固定在主体通道内。

    Deployable recoverable vascular filter and methods for use
    20.
    发明授权
    Deployable recoverable vascular filter and methods for use 失效

    公开(公告)号：US06726702B2

    公开(公告)日：2004-04-27

    申请号：US10013588

    申请日：2001-12-10

    申请人： Farhad Khosravi

    发明人： Farhad Khosravi

    IPC分类号： A61B1700

    CPC分类号： A61F2/013 ,  A61F2/86 ,  A61F2/95 ,  A61F2002/011 ,  A61F2002/018 ,  A61F2230/0006 ,  A61F2230/0067 ,  A61F2230/008

    摘要： A vascular filter is provided that includes a tubular member having proximal and distal ends, and a guidewire lumen. An expandable frame is attached to the tubular member capable of assuming collapsed and enlarged conditions, and filter material is attached to the frame, the filter material having an open proximal end when the frame assumes its enlarged condition. An apparatus for recovering a vascular filter from a blood vessel is also provided that includes a sheath and a retrieval member deployable from the sheath. The retrieval member includes a connector on its distal end for securing the tubular member, such as an expandable member within a recess for receiving the tubular member. The vascular filter may be constrained in its collapsed condition in a sheath, and the tubular member advanced over a guidewire to a location downstream of a treatment site. The vascular filter is deployed and expanded to its enlarged condition across the blood vessel, the guidewire remaining in place. A procedure is performed at the treatment site, the vascular filter capturing released emboli. The retrieval device is advanced over the guidewire, the vascular filter is secured to the retrieval member, and the vascular filter and retrieval device are withdrawn from the blood vessel.