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    Magnetic catheter ablation device and method
    1.
    发明申请
    Magnetic catheter ablation device and method 审中-公开
    磁导管消融装置及方法

    公开(公告)号：US20050187545A1

    公开(公告)日：2005-08-25

    申请号：US11059954

    申请日：2005-02-17

    申请人： Michael Hooven ,  David Rister

    发明人： Michael Hooven ,  David Rister

    IPC分类号： A61B18/14 ,  A61B18/18

    CPC分类号： A61B18/14

    摘要： A method and apparatus for ablation of a layer of tissue is achieved by providing first and second bodies on opposed sides of the tissue. The first body includes a first ablation member and a source of magnetic force adjacent one side of the tissue. The second body includes a second ablation member and a magnetically attractive element responsive to the magnetic force adjacent the other side of the tissue. The magnetic attraction between the source and the attractive element is adapted to align the first and second bodies in opposed relationship on the opposed sides of the tissue. One of the first and second bodies may include at least one expandible member for controlling the magnetic attraction between the bodies.

    摘要翻译： 通过在组织的相对侧上提供第一和第二主体来实现消融组织层的方法和装置。 第一主体包括与组织的一侧相邻的第一消融部件和磁力源。 第二主体包括第二消融构件和响应于邻近组织另一侧的磁力的磁吸引元件。 源和吸引元件之间的磁吸引力适于在组织的相对侧上以相对关系对准第一和第二主体。 第一和第二主体中的一个可以包括用于控制主体之间的磁吸引力的至少一个可扩展构件。

    Surgical ablation and pacing device
    3.
    发明申请
    Surgical ablation and pacing device 有权
    手术消融和起搏装置

    公开(公告)号：US20060161151A1

    公开(公告)日：2006-07-20

    申请号：US11363707

    申请日：2006-02-28

    申请人： Salvatore Privitera ,  Keith Martin ,  Michael Hooven

    发明人： Salvatore Privitera ,  Keith Martin ,  Michael Hooven

    IPC分类号： A61B18/14 ,  A61N1/05 ,  A61B5/04

    CPC分类号： A61B18/1402 ,  A61B5/042 ,  A61B2017/00026 ,  A61B2017/00044 ,  A61B2017/00296 ,  A61B2018/00375 ,  A61B2018/00577 ,  A61B2018/1495 ,  A61N1/05

    摘要： A surgical device has an integral first tip having pair of electrodes configured to ablate tissue using electric energy. A second tip has a pair of electrodes configured to provide pacing signals to a heart and/or to sense electrical signals passing through heart tissue. The second tip is configured to snap onto the first tip, such that the same device may be used for ablation, pacing, and sensing. Alternatively, the second tip may be integral with the device and the first tip configured to snap onto the second tip. Alternatively, a single integral tip of the surgical device may be used for ablation, pacing, and sensing. Such a multipurpose tip may comprise a plurality of electrode pairs or an array of electrodes. A user interface on the device or elsewhere may be operable to provide selectable modes for selectively varying properties of signals communicated to the electrodes.

    摘要翻译： 手术装置具有整体的第一末端，其具有一对电极，其被配置为使用电能来消融组织。 第二尖端具有一对电极，其被配置为向心脏提供起搏信号和/或感测通过心脏组织的电信号。 第二尖端构造成卡扣到第一尖端上，使得相同的装置可用于消融，起搏和感测。 或者，第二末端可以与装置成一体，并且第一末端被配置成卡扣到第二末端。 或者，手术装置的单个整体尖端可用于消融，起搏和感测。 这种多功能尖端可以包括多个电极对或电极阵列。 设备或其他地方的用户界面可以是可操作的，以提供可选择的模式，用于选择性地改变传递到电极的信号的特性。

    Surgical ablation device
    6.
    发明申请
    Surgical ablation device 审中-公开
    手术切除装置

    公开(公告)号：US20060161149A1

    公开(公告)日：2006-07-20

    申请号：US11037543

    申请日：2005-01-18

    申请人： Salvatore Privitera ,  Keith Martin ,  Michael Hooven

    发明人： Salvatore Privitera ,  Keith Martin ,  Michael Hooven

    IPC分类号： A61B18/14

    CPC分类号： A61B5/0538 ,  A61B18/1402 ,  A61B2018/00005 ,  A61B2018/1861

    摘要： A surgical ablation device. A pair of electrodes, each electrode having a surface area for contacting tissue. A pair of heat sinks each in thermal communication with an electrode, the heat sinks having a volume such that the ratio of surface area of the electrode to volume of the heat sink is less than about 3 in2/in3. The electrodes may be slender and parallel. When the electrodes are energized with bi-polar electric energy and placed in contact with the tissue surface, the tissue is heated and ablated such that the maximum tissue temperature occurs below the tissue surface.

    摘要翻译： 手术切除装置。 一对电极，每个电极具有用于接触组织的表面积。 每个与电极热连通的一对散热器，散热器的体积使得电极的表面积与散热片的体积之比小于2 / 在 3 中。 电极可以是细长且平行的。 当电极用双极电能激发并与组织表面接触时，组织被加热和消融，使得最大组织温度发生在组织表面下方。

    Electrode and bipolar ablation method using same
    7.
    发明申请
    Electrode and bipolar ablation method using same 有权
    电极和双极消融方法使用相同

    公开(公告)号：US20050234444A1

    公开(公告)日：2005-10-20

    申请号：US11104725

    申请日：2005-04-13

    申请人： Michael Hooven

    发明人： Michael Hooven

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1492 ,  A61B18/1482 ,  A61B2018/00351 ,  A61B2018/00839 ,  A61B2018/1435

    摘要： The present invention relates to a method and apparatus for creating transmural ablations in heart tissue which, for example, may include two or more electrodes adapted to be connected to opposite poles of a bipolar RF generator so as to energize the electrodes to ablate cardiac tissue between the electrodes. A first electrode may be inserted into cardiac tissue at a first location and a second electrode may be inserted into cardiac tissue at a second location which is spaced from the first location. At least one of the electrodes may be adapted to provide a sufficiently low current density in the vicinity of the electrode to avoid substantial tissue desiccation when energized. Alternatively, the apparatus may include at least one bipolar ablation electrode which comprises an elongated conductive member of spiral shape having a pitch sufficiently small to provide sufficient surface area to avoid substantial desiccation of tissue when energized by a bipolar RF generator.

    摘要翻译： 本发明涉及一种用于在心脏组织中产生透壁性消融的方法和装置，其例如可以包括适于连接到双极型RF发生器的相反极的两个或更多个电极，以便激励电极以消融心脏组织 电极。 第一电极可以在第一位置处插入心脏组织中，并且第二电极可以在与第一位置间隔开的第二位置处插入心脏组织中。 电极中的至少一个可以适于在电极附近提供足够低的电流密度，以在通电时避免实质的组织干燥。 或者，该装置可以包括至少一个双极消融电极，其包括具有足够小间距的螺旋形状的细长导电构件，以提供足够的表面积，以避免由双极RF发生器激励时组织的实质性干燥。