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    Electrosurgical instrument and method of use
    1.
    发明申请
    Electrosurgical instrument and method of use 审中-公开
    电外科仪器及使用方法

    公开(公告)号：US20050267464A1

    公开(公告)日：2005-12-01

    申请号：US10973818

    申请日：2004-10-25

    申请人： Csaba Truckai ,  John Shadduck ,  Bruno Strul ,  James Baker

    发明人： Csaba Truckai ,  John Shadduck ,  Bruno Strul ,  James Baker

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1442 ,  A61B2018/00619

    摘要： An embodiment of a method of the invention provides a method for welding tissue comprising providing a tissue welding device having first and second tissue engaging surfaces with at least one surface including an electrode surface that defines a plurality of surface portions having different resistances to electrical current flow therethrough. A target tissue volume is engaged with the tissue engaging surfaces. Rf energy is delivered to the target volume to create a substantially even temperature distribution across at least a portion of the target tissue volume to substantially uniformly weld at least a portion of the target tissue volume.

    摘要翻译： 本发明的方法的一个实施例提供了一种焊接组织的方法，包括提供具有第一和第二组织接合表面的组织焊接装置，其中至少一个表面包括限定对电流流动具有不同电阻的多个表面部分的电极表面 通过。 目标组织体积与组织接合表面接合。 将Rf能量传递到目标体积以在目标组织体积的至少一部分上产生基本均匀的温度分布，以基本均匀地焊接目标组织体积的至少一部分。

    Electrosurgical jaw structure for controlled energy delivery
    2.
    发明申请
    Electrosurgical jaw structure for controlled energy delivery 有权
    用于受控能量输送的电外科钳口结构

    公开(公告)号：US20050192568A1

    公开(公告)日：2005-09-01

    申请号：US11118881

    申请日：2005-04-29

    申请人： Csaba Truckai ,  James Baker ,  Bruno Strul ,  John Shadduck

    发明人： Csaba Truckai ,  James Baker ,  Bruno Strul ,  John Shadduck

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1442 ,  A61B2018/00077 ,  A61B2018/00083 ,  A61B2018/00148 ,  A61B2018/0063 ,  A61B2018/00809

    摘要： A working end of a surgical instrument that carries first and second jaws for delivering energy to tissue. In a preferred embodiment, at least one jaw of the working end defines a tissue-engagement plane that contacts the targeted tissue. The cross-section of the engagement plane reveals that it defines a surface conductive portion that overlies a variably resistive matrix of a temperature-sensitive resistive material or a pressure-sensitive resistive material. An interior of the jaw carries a conductive material or electrode that is coupled to an Rf source and controller. In an exemplary embodiment, the variably resistive matrix can comprise a positive temperature coefficient (PTC) material, such as a ceramic, that is engineered to exhibit a dramatically increasing resistance (i.e., several orders of magnitude) above a specific temperature of the material.

    摘要翻译： 手术器械的工作端，其携带用于将能量递送至组织的第一和第二钳口。 在优选实施例中，工作端的至少一个钳口限定了接触目标组织的组织接合平面。 接合平面的横截面显示它限定了覆盖在温度敏感电阻材料或压敏电阻材料的可变电阻矩阵上的表面导电部分。 钳口的内部承载耦合到Rf源和控制器的导电材料或电极。 在示例性实施例中，可变电阻矩阵可以包括正温度系数（PTC）材料，例如陶瓷，其被工程化以显示高于材料的特定温度的显着增加的电阻（即几个数量级）。

    Electrosurgical jaw structure for controlled energy delivery
    5.
    发明授权
    Electrosurgical jaw structure for controlled energy delivery 有权
    用于受控能量输送的电外科钳口结构

    公开(公告)号：US07186253B2

    公开(公告)日：2007-03-06

    申请号：US11118881

    申请日：2005-04-29

    申请人： Csaba Truckai ,  James Baker ,  Bruno Strul ,  John H. Shadduck

    发明人： Csaba Truckai ,  James Baker ,  Bruno Strul ,  John H. Shadduck

    IPC分类号： A61B18/14 ,  A61B18/12

    CPC分类号： A61B18/1442 ,  A61B2018/00077 ,  A61B2018/00083 ,  A61B2018/00148 ,  A61B2018/0063 ,  A61B2018/00809

    摘要： A working end of a surgical instrument that carries first and second jaws for delivering energy to tissue. In a preferred embodiment, at least one jaw of the working end defines a tissue-engagement plane that contacts the targeted tissue. The cross-section of the engagement plane reveals that it defines a surface conductive portion that overlies a variably resistive matrix of a temperature-sensitive resistive material or a pressure-sensitive resistive material. An interior of the jaw carries a conductive material or electrode that is coupled to an Rf source and controller. In an exemplary embodiment, the variably resistive matrix can comprise a positive temperature coefficient (PTC) material, such as a ceramic, that is engineered to exhibit a dramatically increasing resistance (i.e., several orders of magnitude) above a specific temperature of the material.

    摘要翻译： 手术器械的工作端，其携带用于将能量递送至组织的第一和第二钳口。 在优选实施例中，工作端的至少一个钳口限定了接触目标组织的组织接合平面。 接合平面的横截面显示它限定了覆盖在温度敏感电阻材料或压敏电阻材料的可变电阻矩阵上的表面导电部分。 钳口的内部承载耦合到Rf源和控制器的导电材料或电极。 在示例性实施例中，可变电阻矩阵可以包括正温度系数（PTC）材料，例如陶瓷，其被工程化以显示高于材料的特定温度的显着增加的电阻（即几个数量级）。

    ELECTROSURGICAL INSTRUMENT WITH REPLACEABLE CARTRIDGE
    6.
    发明申请
    ELECTROSURGICAL INSTRUMENT WITH REPLACEABLE CARTRIDGE 审中-公开
    具有可更换墨盒的电磁仪

    公开(公告)号：US20110004208A1

    公开(公告)日：2011-01-06

    申请号：US12605742

    申请日：2009-10-26

    申请人： Csaba Truckai ,  John Shadduck ,  James Baker

    发明人： Csaba Truckai ,  John Shadduck ,  James Baker

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1442 ,  A61B17/32 ,  A61B2017/2945 ,  A61B2018/00619 ,  A61B2018/00755 ,  A61B2018/00791 ,  A61B2018/00875 ,  A61B2018/1432 ,  A61B2018/1495

    摘要： Various embodiments provide an electrosurgical instrument with a disposable electrosurgical cartridge. In one embodiment, the cartridge has first and second energy-delivery surfaces that carry first and second opposing polarity conductors coupled to a voltage source, together with first and second temperature-responsive variable impedance bodies exposed partly in the respective-delivery surfaces. The cartridge further carries a slidable blade member. The temperature-responsive variable impedance bodies are coupled to the voltage source by series and parallel circuitry. In use, the variable impedance bodies are adapted to modulate current flow and ohmic heating in engaged tissue by providing controlled current paths in the tissue and through the variable impedance bodies as the temperature-responsive bodies sense the temperature of adjacent engaged tissue. The engagement surfaces are capable of highly localized modulation of Rf energy application to engaged tissue to provide high and low temperatures, voltage and current in the tissue to create high strength welds.

    摘要翻译： 各种实施例提供具有一次性电外科手术盒的电外科器械。 在一个实施例中，盒具有第一和第二能量传递表面，其承载耦合到电压源的第一和第二相对极性导体以及部分地暴露在相应输送表面中的第一和第二温度响应可变阻抗体。 该盒还带有可滑动的刀片部件。 温度响应可变阻抗体通过串联和并联电路耦合到电压源。 在使用中，可变阻抗体适于通过在温度响应体感测相邻接合组织的温度时通过在组织中和通过可变阻抗体中提供受控的电流路径来调制接合组织中的电流和欧姆加热。 接合表面能够对接合组织进行Rf能量的高度局部调节，以在组织中提供高和低温度，电压和电流以产生高强度焊缝。

    Electrosurgical instrument with replaceable cartridge
    7.
    发明授权
    Electrosurgical instrument with replaceable cartridge 有权
    电子手术器具可更换墨盒

    公开(公告)号：US07632269B2

    公开(公告)日：2009-12-15

    申请号：US11038930

    申请日：2005-01-18

    申请人： Csaba Truckai ,  John Shadduck ,  James Baker

    发明人： Csaba Truckai ,  John Shadduck ,  James Baker

    IPC分类号： A61B18/18

    CPC分类号： A61B18/1442 ,  A61B17/32 ,  A61B2017/2945 ,  A61B2018/00619 ,  A61B2018/00755 ,  A61B2018/00791 ,  A61B2018/00875 ,  A61B2018/1432 ,  A61B2018/1495

    摘要： An electrosurgical instrument with a disposable electrosurgical cartridge is provided. The cartridge has first and second energy-delivery surfaces that carry first and second opposing polarity conductors coupled to a voltage source, together with first and second temperature-responsive variable impedance bodies exposed partly in the respective-delivery surfaces. The cartridge further carries a slidable blade member. The temperature-responsive variable impedance bodies are coupled to the voltage source by series and parallel circuitry. In use, the variable impedance bodies are adapted to modulate current flow and ohmic heating in engaged tissue by providing controlled current paths in the tissue and through the variable impedance bodies as the temperature-responsive bodies sense the temperature of adjacent engaged tissue. The engagement surfaces are capable of highly localized modulation of Rf energy application to engage engaged tissue to provide high and low temperatures, voltage and current in the tissue to create high strength welds.

    摘要翻译： 提供具有一次性电外科手术盒的电外科器械。 盒具有第一和第二能量传递表面，其承载耦合到电压源的第一和第二相对极性导体以及部分地暴露在相应输送表面中的第一和第二温度响应可变阻抗体。 该盒还带有可滑动的刀片部件。 温度响应可变阻抗体通过串联和并联电路耦合到电压源。 在使用中，可变阻抗体适于通过在温度响应体感测相邻接合组织的温度时通过在组织中和通过可变阻抗体中提供受控的电流路径来调制接合组织中的电流和欧姆加热。 接合表面能够高度局部调节Rf能量施加以接合啮合组织，以在组织中提供高温和低温，电压和电流以产生高强度焊缝。

    Electrosurgical instrument with replaceable cartridge
    8.
    发明申请
    Electrosurgical instrument with replaceable cartridge 有权
    电子手术器具可更换墨盒

    公开(公告)号：US20050159745A1

    公开(公告)日：2005-07-21

    申请号：US11038930

    申请日：2005-01-18

    申请人： Csaba Truckai ,  John Shadduck ,  James Baker

    发明人： Csaba Truckai ,  John Shadduck ,  James Baker

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1442 ,  A61B17/32 ,  A61B2017/2945 ,  A61B2018/00619 ,  A61B2018/00755 ,  A61B2018/00791 ,  A61B2018/00875 ,  A61B2018/1432 ,  A61B2018/1495

    摘要： Various embodiments provide an electrosurgical instrument with a disposable electrosurgical cartridge. In one embodiment, the cartridge has first and second energy-delivery surfaces that carry first and second opposing polarity conductors coupled to a voltage source, together with first and second temperature-responsive variable impedance bodies exposed partly in the respective-delivery surfaces. The cartridge further carries a slidable blade member. The temperature-responsive variable impedance bodies are coupled to the voltage source by series and parallel circuitry. In use, the variable impedance bodies are adapted to modulate current flow and ohmic heating in engaged tissue by providing controlled current paths in the tissue and through the variable impedance bodies as the temperature-responsive bodies sense the temperature of adjacent engaged tissue. The engagement surfaces are capable of highly localized modulation of Rf energy application to engaged tissue to provide high and low temperatures, voltage and current in the tissue to create high strength welds.

    摘要翻译： 各种实施例提供具有一次性电外科手术盒的电外科器械。 在一个实施例中，盒具有第一和第二能量传递表面，其承载耦合到电压源的第一和第二相对极性导体以及部分地暴露在相应输送表面中的第一和第二温度响应可变阻抗体。 该盒还带有可滑动的刀片部件。 温度响应可变阻抗体通过串联和并联电路耦合到电压源。 在使用中，可变阻抗体适于通过在温度响应体感测相邻接合组织的温度时通过在组织中和通过可变阻抗体中提供受控的电流路径来调制接合组织中的电流和欧姆加热。 接合表面能够对接合组织进行Rf能量的高度局部调节，以在组织中提供高和低温度，电压和电流以产生高强度焊缝。

    Radio-frequency generator for powering an ablation device
    10.
    发明申请
    Radio-frequency generator for powering an ablation device 有权
    用于为消融装置供电的射频发生器

    公开(公告)号：US20050245921A1

    公开(公告)日：2005-11-03

    申请号：US11175128

    申请日：2005-07-05

    申请人： Bruno Strul ,  Csaba Truckai ,  Russel Sampson ,  Mark Kane

    发明人： Bruno Strul ,  Csaba Truckai ,  Russel Sampson ,  Mark Kane

    IPC分类号： A61B17/42 ,  A61B18/12 ,  A61B18/14

    CPC分类号： A61B18/1206 ,  A61B18/1485 ,  A61B18/1492 ,  A61B2018/00214 ,  A61B2018/00559 ,  A61B2018/00684 ,  A61B2018/00702 ,  A61B2018/00761 ,  A61B2018/00779 ,  A61B2018/00875 ,  A61B2018/00916 ,  A61B2018/124 ,  A61B2090/064 ,  A61B2218/007

    摘要： An apparatus and method for use in performing ablation of organs and other tissues includes a radio frequency generator which provides a radio frequency signal to ablation electrodes. The power level of the radio frequency signal is determined based on the subject area of ablation. The radio frequency signal is coupled with the ablation electrodes through a transformation circuit. The transformation circuit includes a high impedance transformation circuit and a low impedance transformation circuit. The high or low impedance transformation circuit is selected based on the impedance of the ablation electrodes in contact with the subject tissue. Vacuum level, impedance level, resistance level, and time are measured during ablation. If these parameters exceed determinable limits the ablation procedure is terminated.

    摘要翻译： 用于进行器官和其他组织的消融的装置和方法包括向消融电极提供射频信号的射频发生器。 射频信号的功率电平基于消融的对象区域来确定。 射频信号通过变换电路与消融电极耦合。 变换电路包括高阻抗变换电路和低阻抗变换电路。 基于与被检体组织接触的消融电极的阻抗来选择高阻抗变换电路或低阻抗变换电路。 在消融期间测量真空度，阻抗水平，电阻值和时间。 如果这些参数超过可确定的限制，则消融程序终止。