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    Left ventricular conduits and methods for delivery
    3.
    发明授权
    Left ventricular conduits and methods for delivery 失效

    公开(公告)号：US06964652B2

    公开(公告)日：2005-11-15

    申请号：US10617176

    申请日：2003-07-11

    申请人： Marvin Guiles ,  Gerald Melsky

    发明人： Marvin Guiles ,  Gerald Melsky

    IPC分类号： A61B17/00 ,  A61F2/02 ,  A61F2/82 ,  A61F2/94 ,  A61F11/00 ,  A61M5/00

    CPC分类号： A61F2/94 ,  A61B2017/00252 ,  A61F2/2493 ,  A61F2/82 ,  A61F2220/0016 ,  A61F2230/0091

    摘要： Conduits are provided to direct blood flow from the left ventricle to a coronary artery at a location distal to a blockage in the coronary artery. Threaded and nonthreaded conduits are delivered using a guidewire delivered through the posterior and anterior walls of a coronary artery and into the heart wall. A dilator may be provided over the guidewire into the heart wall, and the conduit delivered over the dilator. An introducer sleeve may be provided over the dilator into the heart wall, the dilator removed, and the conduit delivered through the introducer sleeve. A hollow needle also may be inserted into the posterior and anterior walls of the coronary artery prior to inserting the guidewire. A depth measuring tool may determine the appropriate length of the conduit prior to delivery. The depth measuring tool can include the hollow needle with an access port on a proximal end of the needle and an opening on the distal end of the needle in flow communication with the access port so that when the needle is inserted through the heart wall and into the heart chamber, blood flow through the opening.

    Left ventricular conduits and methods for delivery
    4.
    发明授权
    Left ventricular conduits and methods for delivery 失效
    左心室导管和输送方法

    公开(公告)号：US06638237B1

    公开(公告)日：2003-10-28

    申请号：US09630385

    申请日：2000-08-01

    申请人： Marvin Guiles ,  Gerald Melsky

    发明人： Marvin Guiles ,  Gerald Melsky

    IPC分类号： A61B1900

    CPC分类号： A61F2/94 ,  A61B2017/00252 ,  A61F2/2493 ,  A61F2/82 ,  A61F2220/0016 ,  A61F2230/0091

    摘要： Conduits are provided to direct blood flow from the left ventricle to a coronary artery at a location distal to a blockage in the coronary artery. Threaded and nonthreaded conduits are delivered using a guidewire delivered through the posterior and anterior walls of a coronary artery and into the heart wall. A dilator may be provided over the guidewire into the heart wall, and the conduit delivered over the dilator. An introducer sleeve may be provided over the dilator into the heart wall, the dilator removed, and the conduit delivered through the introducer sleeve. A hollow needle also may be inserted into the posterior and anterior walls of the coronary artery prior to inserting the guidewire. A depth measuring tool may determine the appropriate length of the conduit prior to delivery. The depth measuring tool can include the hollow needle with an access port on a proximal end of the needle and an opening on the distal end of the needle in flow communication with the access port so that when the needle is inserted through the heart wall and into the heart chamber, blood flow through the opening.

    摘要翻译： 提供导管以将血液从左心室引导至冠状动脉远端冠状动脉阻塞位置。 螺纹和无螺纹管道使用通过冠状动脉的后壁和前壁递送并进入心脏壁的导丝来递送。 可以将引导线上的扩张器提供到心脏壁中，并且导管在扩张器上传送。 引导器套筒可以在扩张器上方设置到心脏壁中，移除扩张器，并且导管通过引导器套管输送。 在插入导丝之前，也可以将中空针插入冠状动脉的后壁和前壁。 深度测量工具可以在输送之前确定导管的适当长度。 深度测量工具可以包括具有针的近端上的进入口的中空针和针的远端上的开口，其与进入口流动连通，使得当针穿过心脏壁并进入 心室，血液流过开口。