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135 条记录 (耗时 0.032 秒)

    Deployable recoverable vascular filter and methods for use
    21.
    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the guidewire, the vascular filter is secured to the retrieval member, and the vascular filter and retrieval device are withdrawn from the blood vessel.

    Coiled sheet valve, filter or occlusive device and methods of use
    25.
    发明授权
    Coiled sheet valve, filter or occlusive device and methods of use 有权
    卷盘阀，过滤器或闭塞装置及使用方法

    公开(公告)号：US06221091B1

    公开(公告)日：2001-04-24

    申请号：US09318492

    申请日：1999-05-25

    申请人： Farhad Khosravi

    发明人： Farhad Khosravi

    IPC分类号： A61M2900

    CPC分类号： A61F2/92 ,  A61B17/12022 ,  A61B17/12109 ,  A61B17/12172 ,  A61F2/01 ,  A61F2/2415 ,  A61F2/2418 ,  A61F2/2475 ,  A61F2/958 ,  A61F2002/018 ,  A61F2230/0006 ,  A61F2230/005 ,  A61F2230/0069 ,  A61F2250/0067

    摘要： Apparatus is provided comprising a coiled sheet having a plurality of flaps mounted on its interior surface that project radially inward into a lumen formed by the interior surface of the apparatus when it is deployed. The flaps lie parallel to the interior surface of the sheet during transluminal delivery, but project radially inward once the apparatus is deployed. The flaps may comprise a fine mesh for use as a filter, or alternatively may be covered with a biocompatible material that is substantially impermeable, so as to partially or completely occlude the lumen. In a further alternative embodiment, the flaps may comprise a resilient biocompatible plastic or polymer, so that the flaps move in response to the flow and function as a pressure-based or directional valve.

    摘要翻译： 提供了一种装置，其包括螺旋片，其具有安装在其内表面上的多个翼片，所述翼片在其展开时径向向内突出到由装置的内表面形成的内腔中。 翼片平行于片材的内表面，在器官传送期间，一旦设备展开，就会向内径向向内伸出。 瓣可以包括用作过滤器的细网，或者替代地可以用基本上不可渗透的生物相容性材料覆盖，以便部分或完全地封闭内腔。 在另一替代实施例中，翼片可以包括弹性生物相容的塑料或聚合物，使得翼片响应于流动而移动并且用作基于压力或方向的阀。

    Vascular device having one or more articulation regions and methods of use
    26.
    发明授权
    Vascular device having one or more articulation regions and methods of use 有权
    具有一个或多个关节区域和使用方法的血管装置

    公开(公告)号：US6129739A

    公开(公告)日：2000-10-10

    申请号：US470857

    申请日：1999-12-23

    申请人： Farhad Khosravi

    发明人： Farhad Khosravi

    IPC分类号： A61F2/01 ,  A61M29/00

    CPC分类号： A61F2/01 ,  A61F2/013 ,  A61B2017/2212 ,  A61F2002/011 ,  A61F2002/018 ,  A61F2230/0008 ,  A61F2230/008 ,  A61M2025/09183 ,  A61M2025/1052 ,  A61M2025/109

    摘要： Apparatus and methods are provided for use in filtering emboli from a vessel and performing thrombectomy and embolectomy, wherein a vascular device comprises one or more support hoops, each having an articulation region connected near a distal end of a guide wire, and a blood permeable sac affixed to the support hoop or hoops to form a mouth of the blood permeable sac. The mouth of the sac closes when the apparatus is collapsed for removal to prevent material from escaping from the sac.

    摘要翻译： 提供了用于从血管过滤栓塞并进行血栓切除术和止血切除术的装置和方法，其中血管装置包括一个或多个支撑环，每个支撑环具有连接在导丝的远端附近的关节区域和血液透过囊 固定在支撑环或箍上形成透血囊的口。 当装置塌陷以移除时，囊的口闭合，以防止材料从囊中逸出。

    Coiled sheet valve, filter or occlusive device and methods of use
    28.
    发明授权
    Coiled sheet valve, filter or occlusive device and methods of use 失效
    卷盘阀，过滤器或闭塞装置及使用方法

    公开(公告)号：US5925063A

    公开(公告)日：1999-07-20

    申请号：US942033

    申请日：1997-09-26

    申请人： Farhad Khosravi

    发明人： Farhad Khosravi

    IPC分类号： A61B17/12 ,  A61F2/00 ,  A61F2/01 ,  A61F2/24 ,  A61F2/92 ,  A61M29/00

    CPC分类号： A61F2/92 ,  A61B17/12022 ,  A61B17/12109 ,  A61B17/12172 ,  A61F2/01 ,  A61F2/2415 ,  A61F2/2475 ,  A61F2/2418 ,  A61F2/958 ,  A61F2002/018 ,  A61F2230/0006 ,  A61F2230/005 ,  A61F2230/0069 ,  A61F2250/0067

    摘要： Apparatus is provided comprising a coiled sheet having a plurality of flaps mounted on its interior surface that project radially inward into a lumen formed by the interior surface of the apparatus when it is deployed. The flaps lie parallel to the interior surface of the sheet during transluminal delivery, but project radially inward once the apparatus is deployed. The flaps may comprise a fine mesh for use as a filter, or alternatively may be covered with a biocompatible material that is substantially impermeable, so as to partially or completely occlude the lumen. In a further alternative embodiment, the flaps may comprise a resilient biocompatible plastic or polymer, so that the flaps move in response to the flow and function as a pressure-based or directional valve.

    摘要翻译： 提供了一种装置，其包括螺旋片，其具有安装在其内表面上的多个翼片，所述翼片在其展开时径向向内突出到由装置的内表面形成的内腔中。 翼片平行于片材的内表面，在器官传送期间，一旦设备展开，就会向内径向向内伸出。 瓣可以包括用作过滤器的细网，或者替代地可以用基本上不可渗透的生物相容性材料覆盖，以便部分或完全地封闭内腔。 在另一替代实施例中，翼片可以包括弹性生物相容的塑料或聚合物，使得翼片响应于流动而移动并且用作基于压力或方向的阀。

    Coiled sheet graft stent and methods of making and use
    29.
    发明授权
    Coiled sheet graft stent and methods of making and use 失效
    卷板移植支架及其制作和使用方法

    公开(公告)号：US5824054A

    公开(公告)日：1998-10-20

    申请号：US820213

    申请日：1997-03-18

    申请人： Farhad Khosravi ,  Michael Hogendijk ,  John Spiridigliozzi ,  Michael R. Ross

    发明人： Farhad Khosravi ,  Michael Hogendijk ,  John Spiridigliozzi ,  Michael R. Ross

    IPC分类号： A61F2/06 ,  A61F2/92

    CPC分类号： A61F2/92 ,  A61F2/07 ,  A61F2002/065 ,  A61F2002/075 ,  A61F2210/0076 ,  A61F2220/0016 ,  A61F2220/005 ,  A61F2220/0075

    摘要： A prosthesis is provided for treatment of aneurysms, occlusive disease of vessels and body organs, and arterio-venous fistulas, comprising an expandable coiled sheet portion having a biocompatible graft affixed thereto. The graft material, preferably a polytetrafluoroethylene ("PTFE") or polyesther material, is affixed to the coiled sheet portion by sintering, suturing, or bonding using a biocompatible adhesive. The coiled sheet portion comprises a lattice formed from a biocompatible material, and may include one or more rows of locking teeth adjacent one edge of the coiled sheet that interengage openings in an opposing edge of the coiled sheet portion to retain the prosthesis at a desired expanded diameter. The prosthesis has a small delivery profile, making it suitable for use in a variety of body vessels. Methods of making and deploying the prosthesis are also provided.

    摘要翻译： 提供了一种假体，用于治疗动脉瘤，血管和身体器官的闭塞性疾病以及动静脉瘘，其包括具有附着于其上的生物相容性移植物的可膨胀卷曲片部分。 通过使用生物相容性粘合剂进行烧结，缝合或粘合，将接枝材料，优选聚四氟乙烯（“PTFE”）或聚烯烃材料固定在螺旋片部分上。 螺旋片部分包括由生物相容性材料形成的网格，并且可以包括与线圈片的一个边缘相邻的一排或多排锁定齿，其相互接合卷绕片部分的相对边缘中的开口，以将假体保持在期望的扩张 直径。 假体具有小的输送轮廓，使其适用于各种身体血管。 还提供了制造和展开假体的方法。