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36 条记录 (耗时 0.047 秒)

    SYSTEMS AND METHODS FOR TRANSEPTAL CARDIAC PROCEDURES, INCLUDING ADJUSTABLE, SEPARABLE GUIDEWIRES
    21.
    发明申请
    SYSTEMS AND METHODS FOR TRANSEPTAL CARDIAC PROCEDURES, INCLUDING ADJUSTABLE, SEPARABLE GUIDEWIRES 审中-公开
    用于过渡心脏手术的系统和方法，包括可调节的可分离指南

    公开(公告)号：US20110218503A1

    公开(公告)日：2011-09-08

    申请号：US13038946

    申请日：2011-03-02

    申请人： Ryan E. Kaveckis ,  Larry B. Kulesa ,  David C. Auth

    发明人： Ryan E. Kaveckis ,  Larry B. Kulesa ,  David C. Auth

    IPC分类号： A61M25/00

    CPC分类号： A61M25/00

    摘要： Systems and methods for transeptal cardiac procedures are disclosed. A patient treatment device in accordance with a particular embodiment includes an elongated intravascular guidewire that includes a first branch and a second branch fixedly secured relative to the first branch at a first location and releasably secured relative to the first branch at a second location. At least one of the first and second branches is movable relative to the other between a first position in which the first and second branches form a closed shape, and a second position in which the first and second branches form an open shape. A controller can be operatively coupled to the first and second branches to control (e.g., in a fixed increment manner or a continuously variable manner) a distance between a portion of the first branch and a portion of the second branch while the first and second branches form the closed shape.

    摘要翻译： 公开了用于经心脏心脏手术的系统和方法。 根据特定实施例的患者治疗装置包括细长的血管内导丝，其包括在第一位置处相对于第一分支固定地固定的第一分支和第二分支，并且在第二位置处相对于第一分支可释放地固定。 第一和第二分支中的至少一个在第一和第二分支形成封闭形状的第一位置和第一和第二分支形成开放形状的第二位置之间相对于另一分支可移动。 控制器可以可操作地耦合到第一和第二分支以在第一和第二分支的一部分之间的距离（例如，以固定递增方式或连续可变的方式）控制第一分支的一部分与第二分支的一部分之间的距离， 形成封闭形状。

    Therapeutic device for treating vien graft lesions
    24.
    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
    25.
    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
    28.
    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。

    DEVICES, METHODS, AND KITS FOR FORMING TRACTS IN TISSUE
    29.
    发明申请
    DEVICES, METHODS, AND KITS FOR FORMING TRACTS IN TISSUE 审中-公开
    用于形成组织牵引的装置，方法和工具

    公开(公告)号：US20110208215A1

    公开(公告)日：2011-08-25

    申请号：US12888309

    申请日：2010-09-22

    申请人： D. Bruce Modesitt ,  Joseph F. Paraschac ,  Dan J. Hammersmark ,  David C. Auth ,  Brian Andrew Ellingwood

    发明人： D. Bruce Modesitt ,  Joseph F. Paraschac ,  Dan J. Hammersmark ,  David C. Auth ,  Brian Andrew Ellingwood

    IPC分类号： A61B17/00 ,  A61B17/34

    CPC分类号： A61B17/3415

    摘要： Tissue tract-forming devices, methods, and kits are disclosed. In some variations, a method for forming a tract in a tissue wall having an interior surface and an exterior surface may comprise advancing an anchor member through the tissue wall and into a lumen defined by the tissue wall, the anchor member comprising a proximal portion, a distal portion, and an intermediate portion therebetween, wherein the proximal and intermediate portions are angled with respect to each other and the intermediate and distal portions are angled with respect to each other, positioning the anchor member so that the intermediate portion contacts the interior surface of the tissue wall and the distal portion is angled toward the interior surface of the tissue wall, and advancing a tissue-piercing member into the tissue wall while the intermediate portion is in contact with the interior surface of the tissue wall, to form a tract in the tissue wall.

    摘要翻译： 公开了组织束形成装置，方法和试剂盒。 在一些变型中，用于在具有内表面和外表面的组织壁中形成管道的方法可以包括使锚固构件前进穿过组织壁并进入由组织壁限定的内腔，锚定构件包括近端部分， 远端部分和其间的中间部分，其中近端部分和中间部分相对于彼此成角度，并且中间部分和远端部分相对于彼此成角度，定位锚固部件，使得中间部分接触内表面 组织壁和远端部分朝向组织壁的内表面成角度，并且当中间部分与组织壁的内表面接触时将组织刺穿构件推进到组织壁中，以形成管道 在组织壁。

    TISSUE-PENETRATING GUIDEWIRES WITH SHAPED TIPS, AND ASSOCIATED SYSTEMS AND METHODS
    30.
    发明申请
    TISSUE-PENETRATING GUIDEWIRES WITH SHAPED TIPS, AND ASSOCIATED SYSTEMS AND METHODS 失效
    具有形状提示的组织穿刺指南及相关系统和方法

    公开(公告)号：US20110087211A1

    公开(公告)日：2011-04-14

    申请号：US12576928

    申请日：2009-10-09

    申请人： Larry B. Kulesa ,  David C. Auth ,  Ryan E. Kaveckis

    发明人： Larry B. Kulesa ,  David C. Auth ,  Ryan E. Kaveckis

    IPC分类号： A61B18/18 ,  H01S4/00 ,  G05B9/02 ,  G05B11/01

    CPC分类号： A61B18/1492 ,  A61B2018/00351 ,  A61B2018/00357 ,  A61B2018/0063 ,  Y10T29/49002

    摘要： Tissue-penetrating guidewires with shaped tips, and associated systems and methods are disclosed. A patient treatment system in accordance with one embodiment of the disclosure includes a tissue-penetrating guidewire that in turn includes a flexible segment having a distal portion and a proximal portion. The flexible segment is elongated along an elongation axis. A penetrating member is positioned at the distal portion and includes at least one blade segment having a tapered outer peripheral surface and an adjacent generally sharp edge. The blade segment extends to a distal end of the penetrating member to form a generally blunt tip. In operation, the guidewire can be connected to an electrical current source to deliver high frequency current to the penetrating member.

    摘要翻译： 具有成形尖端的组织穿透导丝以及相关系统和方法被公开。 根据本公开的一个实施例的患者治疗系统包括组织穿透导丝，该导丝又包括具有远端部分和近端部分的柔性部分。 柔性段沿伸长轴伸长。 穿透构件定位在远侧部分并且包括至少一个具有锥形外周表面和相邻的大致锋利边缘的刀片段。 刀片段延伸到穿透构件的远端以形成通常钝的末端。 在操作中，导丝可以连接到电流源以将高频电流传送到穿透构件。