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120 条记录 (耗时 0.036 秒)

    ELECTROSURGICAL APPARATUS AND METHODS FOR TREATMENT AND REMOVAL OF TISSUE
    111.
    发明申请
    ELECTROSURGICAL APPARATUS AND METHODS FOR TREATMENT AND REMOVAL OF TISSUE 有权
    静电设备及组织的处理和去除方法

    公开(公告)号：US20080004621A1

    公开(公告)日：2008-01-03

    申请号：US11856646

    申请日：2007-09-17

    申请人： Robert Dahla ,  Jean Woloszko

    发明人： Robert Dahla ,  Jean Woloszko

    IPC分类号： A61B18/14

    CPC分类号： A61B18/148 ,  A61B18/1492 ,  A61B2018/00577 ,  A61B2018/00583 ,  A61B2018/1213 ,  A61B2018/1437 ,  A61B2018/1472

    摘要： Apparatus and methods for ablating, severing, cutting, shrinking, coagulating, or otherwise modifying a target tissue to be treated. In a method for treating a target tissue, an active electrode of an electrosurgical probe is positioned in at least close proximity to the target tissue in the presence of an electrically conductive fluid. A high frequency voltage is then applied between the active electrode and a return electrode, wherein, the high frequency voltage is sufficient to volumetrically remove (ablate), sever, or modify at least a portion of the target tissue. The probe comprises a multi-lumen shaft having a plurality of internal lumens, and a return electrode coil oriented substantially parallel to the shaft distal end. The active electrode may be in the form of a metal disc, a hook, or an active electrode coil. In the latter embodiment, the active electrode coil is typically arranged substantially orthogonal to the return electrode coil. Methods of making an active electrode coil, a return electrode coil, and an electrosurgical probe are also disclosed.

    摘要翻译： 用于烧蚀，切断，切割，收缩，凝结或以其它方式修饰待治疗的靶组织的装置和方法。 在用于治疗靶组织的方法中，在存在导电流体的情况下，电外科探针的活性电极至少紧邻靶组织。 然后在有源电极和返回电极之间施加高频电压，其中，高频电压足以体积地去除（消融），切断或修改目标组织的至少一部分。 探针包括具有多个内腔的多腔轴和基本上平行于轴远端取向的返回电极线圈。 有源电极可以是金属盘，钩或有源电极线圈的形式。 在后一实施例中，有源电极线圈通常布置成基本上垂直于返回电极线圈。 还公开了制造有源电极线圈，返回电极线圈和电外科探头的方法。

    Instrument for electrosurgical tissue treatment
    113.
    发明授权
    Instrument for electrosurgical tissue treatment 有权
    电外科组织治疗仪

    公开(公告)号：US07276063B2

    公开(公告)日：2007-10-02

    申请号：US10661118

    申请日：2003-09-12

    申请人： Paul O. Davison ,  Jean Woloszko ,  Tom Jenkins

    发明人： Paul O. Davison ,  Jean Woloszko ,  Tom Jenkins

    IPC分类号： A61B18/04

    CPC分类号： A61B18/14 ,  A61B2018/00577 ,  A61B2018/00583 ,  A61B2018/048 ,  A61B2018/122 ,  A61B2218/002

    摘要： Systems and methods are provided for applying a high frequency voltage in the presence of an electrically conductive fluid to create a relatively low-temperature plasma for ablation of tissue adjacent to, or in contact with, the plasma. In one embodiment, an electrosurgical probe or catheter is positioned adjacent the target site so that one or more active electrode(s) are brought into contact with, or close proximity to, a target tissue in the presence of electrically conductive fluid. High frequency voltage is then applied between the active electrode(s) and one or more return electrode(s) to non-thermally generate a plasma adjacent to the active electrode(s), and to volumetrically remove or ablate at least a portion of the target tissue. The high frequency voltage generates electric fields around the active electrode(s) with sufficient energy to ionize the conductive fluid adjacent to the active electrode(s). Within the ionized gas or plasma, free electrons are accelerated, and electron-atoms collisions liberate more electrons, and the process cascades until the plasma contains sufficient energy to break apart the tissue molecules, causing molecular dissociation and ablation of the target tissue.

    摘要翻译： 提供的系统和方法用于在存在导电流体的情况下施加高频电压以产生相对低温的等离子体，以消除与等离子体相邻或与其接触的组织。 在一个实施例中，电外科探针或导管邻近靶位置定位，使得在存在导电流体的情况下使一个或多个有效电极与目标组织接触或接近。 然后将高频电压施加在有源电极和一个或多个返回电极之间，以非热生成邻近有源电极的等离子体，并且对体积方法移除或消除至少一部分 目标组织。 高频电压以足够的能量产生有源电极周围的电场，以使邻近有源电极的导电流体离子化。 在电离气体或等离子体中，自由电子被加速，并且电子 - 原子碰撞释放出更多的电子，并且该过程直到等离子体含有足够的能量来分解组织分子，导致靶组织的分子解离和消融。

    Electrosurgical Apparatus and Methods for Treatment and Removal of Tissue
    114.
    发明申请
    Electrosurgical Apparatus and Methods for Treatment and Removal of Tissue 审中-公开
    电外科手术和组织治疗和去除方法

    公开(公告)号：US20070149966A1

    公开(公告)日：2007-06-28

    申请号：US11680664

    申请日：2007-03-01

    申请人： Robert Dahla ,  Jean Woloszko

    发明人： Robert Dahla ,  Jean Woloszko

    IPC分类号： A61B18/14

    CPC分类号： A61B18/148 ,  A61B18/1492 ,  A61B2018/00577 ,  A61B2018/00583 ,  A61B2018/1213 ,  A61B2018/1437 ,  A61B2018/1472

    摘要： Apparatus and methods for ablating, severing, cutting, shrinking, coagulating, or otherwise modifying a target tissue to be treated. In a method for treating a target tissue, an active electrode of an electrosurgical probe is positioned in at least close proximity to the target tissue in the presence of an electrically conductive fluid. A high frequency voltage is then applied between the active electrode and a return electrode, wherein, the high frequency voltage is sufficient to volumetrically remove (ablate), sever, or modify at least a portion of the target tissue. The probe comprises a multi-lumen shaft having a plurality of internal lumens, and a return electrode coil oriented substantially parallel to the shaft distal end. The active electrode may be in the form of a metal disc, a hook, or an active electrode coil. In the latter embodiment, the active electrode coil is typically arranged substantially orthogonal to the return electrode coil. Methods of making an active electrode coil, a return electrode coil, and an electrosurgical probe are also disclosed.

    摘要翻译： 用于烧蚀，切断，切割，收缩，凝结或以其它方式修饰待治疗的靶组织的装置和方法。 在用于治疗靶组织的方法中，在存在导电流体的情况下，电外科探针的活性电极至少紧邻靶组织。 然后在有源电极和返回电极之间施加高频电压，其中，高频电压足以体积地去除（消融），切断或修改目标组织的至少一部分。 探针包括具有多个内腔的多腔轴和基本上平行于轴远端取向的返回电极线圈。 有源电极可以是金属盘，钩或有源电极线圈的形式。 在后一实施例中，有源电极线圈通常布置成基本上垂直于返回电极线圈。 还公开了制造有源电极线圈，返回电极线圈和电外科探头的方法。

    Electrosurgical apparatus with fluid flow regulator
    115.
    发明申请
    Electrosurgical apparatus with fluid flow regulator 审中-公开
    具有流体流量调节器的电外科手术器械

    公开(公告)号：US20070106288A1

    公开(公告)日：2007-05-10

    申请号：US11270344

    申请日：2005-11-09

    申请人： Jean Woloszko ,  Robert Dahla

    发明人： Jean Woloszko ,  Robert Dahla

    IPC分类号： A61B18/14

    CPC分类号： A61B18/148 ,  A61B2018/1213 ,  A61B2218/007

    摘要： An electrosurgical instrument comprising a shaft that includes a distal end section and a distal tip. Near the distal tip is an active electrode and a fluid collection chamber. The fluid collection chamber comprises an ingress port for suctioning a fluid flow over the active electrode and into the fluid collection chamber; a regulator adapted to adjust the fluid flow through the ingress port; and an aspiration port for exhausting the fluid from the fluid collection chamber, and a method thereof.

    摘要翻译： 一种电外科器械，包括包括远端部分和远侧末端的轴。 远侧末端附近是活性电极和流体收集室。 流体收集室包括用于抽吸有源电极上的流体流并进入流体收集室的入口端口; 适于调节通过入口的流体流量的调节器; 以及用于从流体收集室排出流体的抽吸口及其方法。

    Medical electrical lead
    120.
    发明授权
    Medical electrical lead 失效
    医用电线

    公开(公告)号：US5938596A

    公开(公告)日：1999-08-17

    申请号：US820473

    申请日：1997-03-17

    申请人： Jean Woloszko ,  Ron van der Kruk ,  Antoine Camps

    发明人： Jean Woloszko ,  Ron van der Kruk ,  Antoine Camps

    IPC分类号： A61N1/05 ,  A61B5/04

    CPC分类号： A61N1/05 ,  A61N1/0556

    摘要： A medical electrical lead for establishing an electrical connection with a tissue of the body, the lead having a lead body and a semi-cylindrical cuff. In the preferred embodiment the semi-cylindrical cuff features one or more electrodes. The semi-cylindrical cuff having a long flap which wraps about the cuff and a short flap which wraps about the long flap. The semi-cylindrical cuff is relatively stiff as compared to the short flap. The short flap, in turn, is relatively the same stiffness as the long flap. The stiffness of each flap may be varied, however, so that one is more or less than the other, and in turn, than the cuff. Through such a multi-flap construction the electrodes may be positioned proximal to a nerve in such a manner that the mechanically induced damage may be minimized or even entirely eliminated. Finally, a method of implanting such an electrode is also disclosed.

    摘要翻译： 一种用于与身体的组织建立电连接的医用电线，所述引线具有引线本体和半圆柱形袖带。 在优选实施例中，半圆柱形箍具有一个或多个电极。 半圆柱形袖带具有围绕袖带缠绕的长皮瓣和围绕长折片缠绕的短瓣。 与短瓣相比，半圆柱形袖口相对较硬。 短翼又是与长翼片相同的刚度。 然而，每个翼片的刚度可以变化，使得一个或多于另一个，而不是袖带。 通过这种多瓣构造，电极可以以使得机械诱导的损伤最小化甚至完全消除的方式定位在神经附近。 最后，还公开了一种植入这种电极的方法。