利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

36 条记录 (耗时 0.038 秒)

    Transluminal thrombectomy apparatus
    21.
    发明授权
    Transluminal thrombectomy apparatus 失效
    腔内血栓切除术

    公开(公告)号：US4646736A

    公开(公告)日：1987-03-03

    申请号：US889600

    申请日：1986-07-25

    申请人： David C. Auth

    发明人： David C. Auth

    IPC分类号： A61B17/22 ,  A61B19/00 ,  A61B17/00

    CPC分类号： A61B17/22 ,  A61B17/320758 ,  A61B2017/320733 ,  A61B90/39

    摘要： The invention is an apparatus for breaking up a thrombus by introducing a rotating drive shaft into the thrombus whereby the fibrin of the thrombus will be withdrawn from the thrombus onto the rotating drive shaft, thereby breaking up the network of the thrombus which prevents blood flow. The apparatus includes a drive shaft housing which can be used to withdraw fluid from the area of the thrombus or to introduce medicines, such as streptokinase which will further break up the thrombus or other chemicals such as contrast agents for visualizing the vascular anatomy.

    摘要翻译： 本发明是一种通过将旋转的驱动轴引入血栓来分解血栓的装置，由此血栓的纤维蛋白将从血栓中撤出到旋转的驱动轴上，从而破坏防止血液流动的血栓网络。 该装置包括驱动轴壳体，该驱动轴壳体可用于从血栓区域抽出流体或引入药物，例如链激酶，其将进一步分解血栓或其它化学物质，例如用于可视化血管解剖结构的造影剂。

    Hemostatic tissue tunnel generator for inserting treatment apparatus into tissue of a patient
    22.
    发明授权
    Hemostatic tissue tunnel generator for inserting treatment apparatus into tissue of a patient 失效
    用于将治疗装置插入患者组织的止血组织隧道发生器

    公开(公告)号：US08439907B2

    公开(公告)日：2013-05-14

    申请号：US12112967

    申请日：2008-04-30

    申请人： David C. Auth ,  Alexander Lebedev ,  Michael J. Connolly

    发明人： David C. Auth ,  Alexander Lebedev ,  Michael J. Connolly

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1492 ,  A61B8/12 ,  A61B18/1815 ,  A61B2018/00791 ,  A61B2018/1213 ,  A61B2018/1472 ,  A61B2018/1475 ,  A61B2090/3784 ,  A61B2218/002 ,  A61B2218/007

    摘要： A catheter for insertion into and treatment of tissue in a patient comprises a radio frequency (RF) electrode having an elongated body that conducts electrical RF energy to a conductive tip. An insulating sleeve surrounds the elongated body. In a first mode of operation, the conductive tip is exposed outside the insulating sleeve and the RF electrode delivers RF energy that erodes the tissue of the patient and creates a tunnel through which the catheter can advance into the tissue of the patient. In a second mode of operation, the insulating sleeve and/or the RF electrode is retracted and a second treatment apparatus treats the tissue.

    摘要翻译： 用于插入和治疗患者组织的导管包括射频（RF）电极，其具有将电RF能量传导到导电尖端的细长主体。 绝缘套管围绕细长体。 在第一操作模式中，导电尖端暴露在绝缘套管的外部，RF电极提供RF能量，其侵蚀患者的组织并产生导管可以前进到患者组织中的隧道。 在第二操作模式中，绝缘套管和/或RF电极缩回，第二处理装置处理组织。

    Therapeutic device for treating vien graft lesions
    27.
    发明授权
    Therapeutic device for treating vien graft lesions 失效
    用于治疗移植物病变的治疗装置

    公开(公告)号：US5681336A

    公开(公告)日：1997-10-28

    申请号：US524591

    申请日：1995-09-07

    申请人： Thomas J. Clement ,  David C. Auth ,  Maurice Buchbinder

    发明人： Thomas J. Clement ,  David C. Auth ,  Maurice Buchbinder

    IPC分类号： A61B17/22 ,  A61B17/32 ,  A61F2/958 ,  A61M1/00 ,  A61B17/14 ,  A61M29/00

    CPC分类号： A61B17/320758 ,  A61B2017/22048 ,  A61B2017/22067 ,  A61B2017/320004 ,  A61B2217/005 ,  A61B2217/007 ,  A61M2025/1086 ,  A61M25/1002

    摘要： A rotational ablation device for use in medical applications which are designed to reduce lesions, particularly vein-graft lesions, within blood vessels, the device includes a distal balloon located at the end of a guide wire, a proximal balloon having a cuff surrounding a guide catheter, an inflation lumen for use in inflating a distal balloon on the guide catheter, one or more rotating burrs used in conjunction with a helical drive system surrounding the guidewire; a suction system to remove ablated lesion material; and a control console to provide for the necessary control of the various systems of the device.

    摘要翻译： 一种用于医疗应用的旋转消融装置，其被设计用于减少血管内的病变，特别是静脉移植物损伤，该装置包括位于导丝末端的远侧球囊，近端球囊，其具有围绕引导件的袖带 导管，用于对引导导管上的远侧气囊充气的充气腔，与围绕导丝的螺旋驱动系统结合使用的一个或多个旋转毛刺; 吸引系统去除烧伤损伤物质; 以及控制台，用于对设备的各种系统进行必要的控制。

    Fast pulse thermal cautery probe
    28.
    发明授权
    Fast pulse thermal cautery probe 失效
    快速脉冲热电探头

    公开(公告)号：US4582057A

    公开(公告)日：1986-04-15

    申请号：US553855

    申请日：1983-11-21

    申请人： David C. Auth ,  Dale M. Lawrence ,  Tim R. Majoch

    发明人： David C. Auth ,  Dale M. Lawrence ,  Tim R. Majoch

    IPC分类号： A61B17/32 ,  A61B18/00 ,  A61B18/08 ,  A61B18/14 ,  A61B17/36

    CPC分类号： A61B18/082 ,  A61B17/3203 ,  A61B18/1492 ,  A61B2018/00404 ,  A61B2018/00761 ,  A61B2018/0097 ,  A61B2018/087

    摘要： A miniaturized, endoscopically deliverable thermal cautery probe for cauterizing internal vessels. The probe is applied to tissues cold, and a large number of electric heating pulses of equal energy are then applied to an internal heating element in the probe. The probe has an internal heating element in direct thermal contact with an active heat-transfer portion that has a low heat capacity to insure quick heating and subsequent cooling, thereby adequately coagulating tissue while minimizing heat penetration and resulting tissue damage. The electrical power applied to the probe is continuously measured and is terminated when the energy delivered reaches a preset value. The number of such pulses applied to the probe (and hence the total energy delivered) may be preset while the duration of the period during which the pulses were applied is displayed. Alternatively, the duration of the period during which such pulses are applied to the probe may be preset while the number of pulses applied (and hence the total energy delivered) is displayed. The heating element for the probe is a controlled breakdown diode which has a breakdown voltage that is a function of its temperature so that the temperature can be controlled. The heating element has a resistance of greater than 0.5 ohm to provide adequate power dissipation with relatively low currents. A washing fluid, preferably flowing along the outside of the probe toward its tip, cleans blood from the tissue to be coagulated to make the source of blood more readily visible.

    摘要翻译： 用于烧灼内部血管的小型化，内窥镜可输送的热灼烧探头。 将探针施加到组织冷，然后将大量相等能量的电加热脉冲施加到探针中的内部加热元件。 该探头具有与主动传热部分直接热接触的内部加热元件，其具有低热容量以确保快速加热和随后的冷却，从而充分凝固组织，同时最小化热穿透并导致组织损伤。 连续测量施加到探头的电力，并且当所传送的能量达到预设值时终止。 施加到探针的这种脉冲的数量（并且因此传送的总能量）可以被预设，同时显示施加脉冲的周期的持续时间。 或者，可以在施加脉冲的数量（并且因此传送的总能量）的情况下预设这种脉冲施加到探针的期间的持续时间。 用于探针的加热元件是受控击穿二极管，其具有作为其温度的函数的击穿电压，从而可以控制温度。 加热元件具有大于0.5欧姆的电阻，以相对较低的电流提供足够的功率消耗。 洗涤液优选地沿着探针的外侧向其尖端流动，从待凝结的组织中清除血液，使得血液源更容易可见。

    Hemostatic spark erosion tissue tunnel generator with integral treatment providing variable volumetric necrotization of tissue
    30.
    发明授权
    Hemostatic spark erosion tissue tunnel generator with integral treatment providing variable volumetric necrotization of tissue 失效
    止血火花侵蚀组织隧道发生器，具有整体治疗，提供组织的可变体积坏死

    公开(公告)号：US08187270B2

    公开(公告)日：2012-05-29

    申请号：US11936748

    申请日：2007-11-07

    申请人： David C. Auth ,  Alexander Lebedev ,  Michael J. Connolly

    发明人： David C. Auth ,  Alexander Lebedev ,  Michael J. Connolly

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1492 ,  A61B8/12 ,  A61B18/1815 ,  A61B2018/00791 ,  A61B2018/1213 ,  A61B2018/1472 ,  A61B2018/1475 ,  A61B2090/3784 ,  A61B2218/002 ,  A61B2218/007

    摘要： A catheter for insertion into and treatment of tissue in a patient comprises a radio frequency (RF) electrode having an elongated body that conducts electrical RF energy to a conductive tip. An insulating sleeve surrounding the elongated body prevents leakage of RF energy from the elongated body when the catheter is being inserted into the tissue of the patient. In a first mode of operation, the conductive tip is exposed outside the insulating sleeve and the RF electrode delivers first RF energy capable of producing sparks that erode the tissue of the patient and create a tunnel through which the catheter can advance into the tissue of the patient. In a second mode of operation, the insulating sleeve is retracted to expose a portion of the RF electrode. Second RF energy is delivered to the volume of tissue around the catheter to necrotize the tissue by heating without producing sparks.

    摘要翻译： 用于插入和治疗患者组织的导管包括射频（RF）电极，其具有将电RF能量传导到导电尖端的细长主体。 围绕细长主体的绝缘套管防止当导管插入到患者组织中时，来自细长体的RF能量的泄漏。 在第一操作模式中，导电尖端暴露在绝缘套管外部，并且RF电极提供能够产生火花的第一RF能量，该火花侵蚀患者的组织并产生通道，导管可穿过该通道进入组织中 患者。 在第二操作模式中，绝缘套管缩回以暴露RF电极的一部分。 将第二RF能量传递到导管周围的组织体积，以通过加热而不产生火花来坏死组织。