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122 条记录 (耗时 0.053 秒)

    Thrombectomy and tissue removal method and device
    52.
    发明授权
    Thrombectomy and tissue removal method and device 失效
    血栓切除术和组织清除方法及装置

    公开(公告)号：US06544209B1

    公开(公告)日：2003-04-08

    申请号：US08351613

    申请日：1994-12-08

    申请人： William J. Drasler ,  Robert G. Dutcher ,  Mark L. Jenson ,  Joseph M. Thielen ,  Emmanuil I. Protonotarios

    发明人： William J. Drasler ,  Robert G. Dutcher ,  Mark L. Jenson ,  Joseph M. Thielen ,  Emmanuil I. Protonotarios

    IPC分类号： A61B1720

    CPC分类号： A61B17/32037 ,  A61B17/3203

    摘要： A device for removing a thrombus or other tissue deposit from the cardiovascular system, natural or synthetic tubule or cavity found in the human body of a patient without the need to surgically access the location of the thrombus or other tissue deposit via a cut-down or other surgical procedure. A flexible metal or high pressure plastic tube conveys an extremely high pressure stream of sterile saline or other physiologic solution to at least one jet at the distal end of the catheter. At least one jet is directed at the opening of a large exhaust lumen or other target. The jet(s) is responsible for providing a localized negative pressure which entrains tissue into the jet from break-up of the debris. This jet(s) can also provide stagnation pressure in the exhaust lumen which drives the tissue or thrombotic debris out of the exhaust lumen. Operation of the device with tip pressure greater than 500 psi provides this device with the entrainment and exhaust characteristics which contribute to its effectiveness. The rate of exhaust of tissue debris is metered to ensure minimal local impact on the vasculature at the site of the thrombus deposit. A fluid metering means, such as a roller pump, controls the rate of exhaust such that it is in balance with the saline input or can be adjusted to be greater or less than the input. A positive displacement pump operating at steady or pulsatile flow provides the high pressure saline to the tip of the catheter.

    摘要翻译： 一种用于从心血管系统去除血栓或其他组织沉积物的装置，在患者的人体中发现的天然或合成的小管或腔，而不需要经由切口或外科手术来进入血栓或其他组织沉积物的位置 其他外科手术。 柔性金属或高压塑料管将非常高压的无菌盐水或其他生理溶液流输送到导管远端处的至少一个射流。 至少一个射流指向大排气腔或其他靶的开口。 喷气机负责提供局部的负压，其将组织夹带到喷射器中从碎片的分解中。 这种喷射器还可以在排气腔中提供停滞压力，其将组织或血栓形成的碎片驱动出排出管腔。 尖端压力大于500 psi的设备的操作为该设备提供了有助于其有效性的夹带和排气特性。 计量组织碎片的排气速率，以确保局部对血栓沉积部位脉管系统的局部影响最小。 诸如辊式泵的流体计量装置控制排气速率，使其与盐水输入平衡，或者可以将其调节为大于或小于输入。 以稳定或脉动流动运行的容积式泵向导管的尖端提供高压盐水。

    Vialess shorting bars for magnetoresistive devices
    53.
    发明授权
    Vialess shorting bars for magnetoresistive devices 失效
    磁阻器件的无极短路棒

    公开(公告)号：US4754431A

    公开(公告)日：1988-06-28

    申请号：US8211

    申请日：1987-01-28

    申请人： Mark L. Jenson

    发明人： Mark L. Jenson

    IPC分类号： H01F41/32 ,  G01R33/09 ,  G11C11/15 ,  H01F10/00 ,  H01L43/08 ,  H01L43/12

    CPC分类号： H01L43/08 ,  G11C11/15

    摘要： A magnetic solid state device, such as a magnetoresistive memory cell, includes first and second layers of magnetoresistive material. The first and second layers are separated by a third layer which prevents exchange coupling between the magnetic dipoles of the first and second layers. The first, second and third layers are formed as a strip. A fourth layer of a resistive material, such as nitrogen doped tantalum, overlies the first layer. The fourth layer includes spaced, raised portions over which electrically conductive material, such as TiW, may be formed on top of the raised portions.

    PFO clip
    55.
    发明授权
    PFO clip 有权
    PFO剪辑

    公开(公告)号：US08894682B2

    公开(公告)日：2014-11-25

    申请号：US11518753

    申请日：2006-09-11

    申请人： Joseph M. Thielen ,  Mark L. Jenson ,  William J. Drasler

    发明人： Joseph M. Thielen ,  Mark L. Jenson ,  William J. Drasler

    IPC分类号： A61B17/08 ,  A61B17/00

    CPC分类号： A61B17/0057 ,  A61B17/083 ,  A61B2017/00575 ,  A61B2017/00592 ,  A61B2017/00606 ,  A61B2017/00867 ,  A61B2017/00893

    摘要： Embodiments for a device, system and method for occluding an opening in a septum. Embodiments of the device can include a first control component, a first elongate member that extends from the first control component, a second elongate member, a connecting member that positions the first elongate member adjacent the second elongate member and a retraction member releasably coupled to the first control component. The retraction member can be used to change a relative position of the first elongate member and the second elongate member of the device.

    摘要翻译： 用于封闭隔膜中的开口的装置，系统和方法的实施例。 该装置的实施例可以包括第一控制部件，从第一控制部件延伸的第一细长部件，第二细长部件，将第一细长部件定位成邻近第二细长部件的连接部件和可释放地联接到 第一控制组件。 缩回构件可用于改变第一细长构件和装置的第二细长构件的相对位置。

    Automatic vascular closure deployment devices and methods
    58.
    发明授权
    Automatic vascular closure deployment devices and methods 有权
    自动血管闭合部署装置及方法

    公开(公告)号：US08444673B2

    公开(公告)日：2013-05-21

    申请号：US13025356

    申请日：2011-02-11

    申请人： Joseph M. Thielen ,  Jason P. Hill ,  Mark L. Jenson ,  Michael J. Pikus ,  Leonard B. Richardson ,  Joel Groff

    发明人： Joseph M. Thielen ,  Jason P. Hill ,  Mark L. Jenson ,  Michael J. Pikus ,  Leonard B. Richardson ,  Joel Groff

    IPC分类号： A61B17/04 ,  A61B17/08

    CPC分类号： A61B17/0057 ,  A61B17/0467 ,  A61B17/0487 ,  A61B2017/00654 ,  A61B2017/00663 ,  A61B2017/0417 ,  A61B2017/0496 ,  A61B2090/0807

    摘要： Methods of installing a vascular closure device, the vascular closure device adapted for sealing an opening in biological tissue and comprising an anchor, a compressible plug, a cinch and a suture, the method comprising the steps of providing an insertion sheath, inserting the insertion sheath into the opening in the biological tissue, providing a device sheath having the vascular closure device preloaded therein with a proximal portion of the suture attached to the device sheath, subsequent to the step of inserting the insertion sheath, inserting the device sheath into the insertion sheath, and retracting the insertion sheath and device sheath simultaneously, wherein during the retraction, the insertion sheath and the device sheath are fixed to one another and devices adapted to the methods.

    摘要翻译： 一种安装血管闭合装置的方法，所述血管闭合装置适于密封生物组织中的开口并包括锚固件，可压缩塞子，束带和缝合线，所述方法包括以下步骤：提供插入鞘，将插入鞘 进入生物组织中的开口，提供装置护套，其中预先装载有血管闭合装置的血管闭合装置具有附接到装置护套的缝合线的近侧部分，在插入插入鞘的步骤之后，将装置护套插入插入鞘中 并且同时缩回插入鞘和装置护套，其中在缩回过程中，插入鞘和装置护套彼此固定并适应于该方法。

    Thrombectomy apparatus and method
    59.
    发明授权
    Thrombectomy apparatus and method 有权
    血栓切除装置及方法

    公开(公告)号：US08430837B2

    公开(公告)日：2013-04-30

    申请号：US12026317

    申请日：2008-02-05

    申请人： Mark L. Jenson ,  William J. Drasler ,  Joseph M. Thielen

    发明人： Mark L. Jenson ,  William J. Drasler ,  Joseph M. Thielen

    IPC分类号： A61N1/30

    CPC分类号： A61B17/32037 ,  A61B17/221 ,  A61B2017/2212 ,  A61F2/013

    摘要： A thrombectomy system may include an elongate shaft that defines a high pressure lumen and a low pressure lumen. The high pressure lumen may terminate near an end of the low pressure lumen. An expandable capture basket may be disposed near the end of the low pressure lumen. A thrombectomy apparatus may include an elongate shaft, an evacuation lumen extending within the elongate shaft and a high pressure lumen extending within the elongate shaft. A capture apparatus may be disposed within a wire lumen that extends within the elongate shaft such that the capture apparatus extends distally from the wire lumen.

    摘要翻译： 血栓切除系统可以包括限定高压腔和低压腔的细长轴。 高压腔可以在低压腔的端部附近终止。 可扩张的捕获篮可以设置在低压腔的端部附近。 血栓切除装置可以包括细长轴，在细长轴内延伸的抽空腔和在细长轴内延伸的高压腔。 捕获装置可以设置在细长轴内延伸的线腔内，使得捕获装置从线腔向远侧延伸。

    GUIDE-COMPATIBLE LARGE-ELECTRODE CATHETER FOR RENAL NERVE ABLATION WITH REDUCED ARTERIAL INJURY
    60.
    发明申请
    GUIDE-COMPATIBLE LARGE-ELECTRODE CATHETER FOR RENAL NERVE ABLATION WITH REDUCED ARTERIAL INJURY 有权
    指导兼容的大电极导管，用于神经退化，减少肢体损伤

    公开(公告)号：US20120265066A1

    公开(公告)日：2012-10-18

    申请号：US13353948

    申请日：2012-01-19

    申请人： Loren M. Crow ,  Mark L. Jenson

    发明人： Loren M. Crow ,  Mark L. Jenson

    IPC分类号： A61B6/00 ,  A61B18/14

    CPC分类号： A61B18/1492 ,  A61B90/39 ,  A61B2017/00473 ,  A61B2018/00404 ,  A61B2018/00434 ,  A61B2018/00511 ,  A61B2090/0808

    摘要： A first catheter is dimensioned for deployment within a renal artery. A second catheter has a shaft with an outer diameter smaller than an inner diameter of the first catheter's open lumen. A gap is formed between the shaft and the first catheter when the second catheter is situated within the first catheter. The gap facilitates transport of a fluid, such as imaging contrast media, along the first catheter. An electrode arrangement at the distal end of the shaft is configured to deliver ablative energy to perivascular renal nerves, and has an outer diameter about the same size as the inner diameter of the first catheter such that a fit therebetween substantially blocks fluid flow within the gap yet provides for relative movement between the electrode arrangement and the luminal wall. A conductor extends between the proximal and distal ends of the shaft and is coupled to electrode arrangement.

    摘要翻译： 第一个导管的尺寸用于部署在肾动脉内。 第二导管具有外径小于第一导管开口腔内径的轴。 当第二导管位于第一导管内时，在轴和第一导管之间形成间隙。 该间隙便于沿着第一导管输送诸如成像造影剂的流体。 在轴的远端处的电极布置被配置为将消融能量递送至血管周围肾神经，并且具有与第一导管的内径大致相同尺寸的外径，使得其间的配合基本上阻挡在间隙内的流体流动 而是提供电极装置和腔壁之间的相对运动。 导体在轴的近端和远端之间延伸并耦合到电极装置。