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    Cardiac implant device tether system and method
    11.
    发明授权
    Cardiac implant device tether system and method 有权

    公开(公告)号：US07011671B2

    公开(公告)日：2006-03-14

    申请号：US10198261

    申请日：2002-07-16

    申请人： Jeffrey Welch

    发明人： Jeffrey Welch

    IPC分类号： A61M29/00

    CPC分类号： A61F2/01 ,  A61F2230/0006

    摘要： Catheterization apparatus for implanting devices is provided with a device tether. The apparatus includes a device delivery tube that provides a pathway for moving implant devices through a patient's vasculature to internal body cavities. The implant devices are carried or pushed through the device delivery tube by a tubular push rod. The implant devices are tethered to a line passing through the push rod lumen. After deployment, the implant devices may be retracted into the device delivery tube for repositioning or retrieval by pulling on the tether.

    Barrier device for ostium of left atrial appendage
    12.
    发明申请
    Barrier device for ostium of left atrial appendage 有权
    用于左心耳口的屏障装置

    公开(公告)号：US20030120337A1

    公开(公告)日：2003-06-26

    申请号：US10308032

    申请日：2002-12-03

    申请人： ATRITECH, INC.

    发明人： Robert A. Van Tassel ,  Robert G. Hauser

    IPC分类号： A61F002/06

    CPC分类号： A61B17/12022 ,  A61B17/00234 ,  A61B17/0057 ,  A61B17/12122 ,  A61B17/12131 ,  A61B17/12136 ,  A61B17/12159 ,  A61B17/12172 ,  A61B17/12186 ,  A61B90/06 ,  A61B2017/00022 ,  A61B2017/00044 ,  A61B2017/00243 ,  A61B2017/00641 ,  A61B2017/1205 ,  A61B2090/064 ,  A61F2/01 ,  A61F2002/018 ,  A61F2230/0006 ,  A61F2230/0069 ,  A61F2230/008

    摘要： A membrane applied to the ostium of an atrial appendage for blocking blood from entering the atrial appendage which can form blood clots therein is disclosed. The membrane also prevents blood clots in the atrial appendage from escaping therefrom and entering the blood stream which can result in a blocked blood vessel, leading to strokes and heart attacks. The membranes are percutaneously installed in patients experiencing atrial fibrillations and other heart conditions where thrombosis may form in the atrial appendages. A variety of means for securing the membranes in place are disclosed. The membranes may be held in place over the ostium of the atrial appendage or fill the inside of the atrial appendage. The means for holding the membranes in place over the ostium of the atrial appendages include prongs, stents, anchors with tethers or springs, disks with tethers or springs, umbrellas, spiral springs filling the atrial appendages, and adhesives. After the membrane is in place a filler substance may be added inside the atrial appendage to reduce the volume, help seal the membrane against the ostium or clot the blood in the atrial appendage. The membranes may have anticoagulants to help prevent thrombosis. The membranes be porous such that endothelial cells cover the membrane presenting a living membrane wall to prevent thrombosis. The membranes may have means to center the membranes over the ostium. Sensors may be attached to the membrane to provide information about the patient.

    摘要翻译： 公开了一种用于阻止血液进入可能在其中形成血块的心房附件的心房附近的膜的膜。 膜还可以防止心耳中的血块从其中逸出并进入可能导致血管阻塞的血流，导致中风和心脏病发作。 膜经皮安装在经历心房颤动和其他心脏病症的患者中，其中血栓形成可能在心房附近形成。 公开了将膜固定到位的各种方法。 膜可以保持在心房附近的位置上，或者填满心房内部。 用于将膜保持在心房附近的位置的手段包括插脚，支架，具有系绳或弹簧的锚杆，具有系绳或弹簧的盘，雨伞，填充心房的螺旋弹簧和粘合剂。 在膜就位之后，可以在心耳内添加填充物质以减小体积，有助于将膜与口腔密封或凝结在心耳中的血液。 膜可以具有抗凝剂以帮助预防血栓形成。 膜是多孔的，使得内皮细胞覆盖呈现活膜膜的膜以防止血栓形成。 膜可以具有使膜在孔上方居中的手段。 传感器可以连接到膜以提供关于患者的信息。

    Intracardiac cage and method of delivering same
    13.
    发明授权
    Intracardiac cage and method of delivering same 有权

    公开(公告)号：US10143458B2

    公开(公告)日：2018-12-04

    申请号：US15261311

    申请日：2016-09-09

    申请人： ATRITECH, INC.

    发明人： Marc S. Kreidler

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

    摘要： A method of preventing ingress of material into the left atrium of a heart includes providing a delivery sheath, advancing the sheath distal end through an opening between the right atrium and the left atrium of the heart, providing an expandable cage, delivering the expandable cage to the left atrium, and expanding the expandable cage within the left atrium. The expandable cage includes a proximal end, a distal end, and a plurality of supports extending therebetween. The expandable cage also includes a first membrane provided at its proximal end and a second membrane provided at its distal end. The expandable cage has a collapsed configuration so that it can be received within the lumen of the delivery sheath, and an expanded configuration for deployment within the heart. When expanded, the first membrane is positioned at an opening between the left and right atria of the heart, and the second membrane is positioned at the ostium of the left atrial appendage. The first membrane substantially prevents passage of blood between the atria and the second membrane prevents passage of embolic material from the left atrial appendage into the left atrium of the heart.

    ATRIAL APPENDAGE BLOOD FILTRATION SYSTEMS
    18.
    发明申请
    ATRIAL APPENDAGE BLOOD FILTRATION SYSTEMS 审中-公开
    ATRIAL附录血液过滤系统

    公开(公告)号：US20160051358A1

    公开(公告)日：2016-02-25

    申请号：US14806446

    申请日：2015-07-22

    申请人： ATRITECH, INC.

    发明人： Gregg S. Sutton ,  Jeffrey Welch ,  Dean A. Peterson ,  John B. Bridgeman ,  Bruce R. Youngberg

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

    CPC分类号： A61F2/01 ,  A61B17/0057 ,  A61B17/12022 ,  A61B17/12122 ,  A61B17/12172 ,  A61B2017/00243 ,  A61B2017/00575 ,  A61B2017/12095 ,  A61F2002/011 ,  A61F2002/016 ,  A61F2002/018 ,  A61F2230/0006 ,  A61F2230/005 ,  A61F2230/008 ,  A61F2230/0093

    摘要： Instrumentation for percutaneous delivery of blood filtration devices to atrial appendages includes a curved access sheath and a delivery tube. The curved access sheath is coursed through the patient's vasculature to gain transseptal access to a left atrial appendage. A compressed filter device attached to a tether wire is loaded in the delivery tube. The loaded delivery tube is advanced through the pre-positioned access sheath to place the device in a deployment position. The access sheath and the delivery tube can be mechanically locked and moved together to place the device in a suitable deployment position. The device is deployed by expelling it from the delivery tube either by retracting the delivery tube over the tether wire, or by moving the tether wire forward through the delivery tube. The expelled device, which is not constrained by the delivery tube walls, self expands to its useful size in the subject atrial appendage. A filter membrane in the deployed extends across the appendage ostium to filter blood flow through the ostium. The filter membrane is configured to present a flat surface to atrial blood flow past the ostium.

    摘要翻译： 用于将血液过滤装置经皮递送至心房附件的仪器包括弯曲通道护套和输送管。 弯曲的通路护套通过患者的脉管系统通过，以获得左心耳通过的通路。 附接到系绳的压缩过滤器装置装载在输送管中。 装载的输送管通过预定位的进入护套前进，以将装置置于展开位置。 进入护套和输送管可以机械地锁定并一起移动，以将装置放置在合适的展开位置。 通过将输送管缩回到系绳上，或者通过将系绳向前移动通过输送管，将装置从输送管排出。 不受输送管壁约束的排出的装置在主题心耳中自我膨胀到其有用的尺寸。 所部署的过滤膜延伸穿过附属口，以过滤通过口的血液流。 滤膜被配置成呈现出通过口的心房血流的平坦表面。