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    Electrosurgical jaw structure for controlled energy delivery
    14.
    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 and method of use
    16.
    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。

    Radio-frequency generator for powering an ablation device
    17.
    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。

    Electrosurgical jaw structure for controlled energy delivery
    18.
    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）。

    Photoionization enabled electrochemical material removal techniques for use in biomedical fields
    19.
    发明授权
    Photoionization enabled electrochemical material removal techniques for use in biomedical fields 失效
    光电化使电化学材料去除技术用于生物医学领域

    公开(公告)号：US06387088B1

    公开(公告)日：2002-05-14

    申请号：US09439737

    申请日：1999-11-15

    申请人： John H. Shattuck ,  Bruno Strul

    发明人： John H. Shattuck ,  Bruno Strul

    IPC分类号： A61B1818

    CPC分类号： A61B18/042 ,  A61B18/20 ,  A61B18/201

    摘要： A method for controlled removal of surface tissue layer portions with a non-contact energy delivery modality that applies electrical energy to the targeted tissue surface to cause electrochemical ablation. The system provides (i) a UV energy source for irradiating a beam path through a selected neutral gas environment overlying the targeted tissue thereby creating an ionized gas volume (i.e., a conductive non-equilibrium plasma), and (ii) an electrical source for creating an intense electrical field in the ionized gas volume to thereby apply energy to the targeted surface layer to cause volatilization and removal of the surface layer in a plasma-mediated ablation. The ultrafast plasma creation events are repeated at a high repetition rate to ablate surface layer portions in a controlled manner. Each ultrafast plasma creation event is of such a high intensity and such a brief duration that thermal energy is not transferred to the tissue thus preventing collateral thermal damage to regions adjacent to the targeted site.

    摘要翻译： 一种以非接触能量递送方式控制去除表面组织层部分的方法，其将电能施加到目标组织表面以引起电化学消融。 该系统提供（i）用于照射穿过目标组织的选定中性气体环境的光束路径的UV能源，从而产生电离气体体积（即，导电非平衡等离子体），和（ii）用于 在电离气体体积中产生强烈的电场，从而将能量施加到目标表面层，以在等离子体介导的烧蚀中引起表面层的挥发和去除。 以高重复率重复超快等离子体产生事件，以受控的方式烧蚀表面层部分。 每个超快等离子体产生事件具有如此高的强度和短暂的持续时间，即热能不会转移到组织上，从而防止邻近目标部位的区域的附带热损伤。

    Soft tissue heating apparatus with independent, cooperative heating sources
    20.
    发明授权
    Soft tissue heating apparatus with independent, cooperative heating sources 有权
    软组织加热装置具有独立的协调加热源

    公开(公告)号：US06358273B1

    公开(公告)日：2002-03-19

    申请号：US09289459

    申请日：1999-04-09

    申请人： Bruno Strul ,  Hugh R. Sharkey ,  Daren L. Stewart

    发明人： Bruno Strul ,  Hugh R. Sharkey ,  Daren L. Stewart

    IPC分类号： A61F700

    CPC分类号： A61B18/148 ,  A61B18/1492 ,  A61B2018/00005 ,  A61B2018/00714 ,  A61B2018/00791 ,  A61B2018/00815 ,  A61B2018/1253

    摘要： A medical probe for the heating of soft tissue, such as collagen tissue, wherein the medical probe has an elongated body with a proximal and distal end, a heating source, an RF electrode. Optional components include a thermocouple, and an insulative sleeve. The probe's elongated body is preferably hollow and flexible. The RF electrode and the heating source are powered by independently controlled power sources and cooperate to maintain a constant and smooth temperature to the distal end of the RF electrode. The heating source may be a contained liquid, such as saline, or an electrothermal mass, such as a ferrite, a toroid, a resistive element, or the like. Current induced from the conductor to the heating source creates heat in the heating source. The thermocouple measures the temperature of the heating source and adjusts the power to the conductor to maintain the heating source's temperature.

    摘要翻译： 用于加热软组织（例如胶原组织）的医疗探针，其中医疗探针具有带近端和远端的细长体，加热源，RF电极。 可选组件包括热电偶和绝缘套管。 探头的细长体优选是中空的和柔性的。 RF电极和加热源由独立控制的电源供电，并协调以保持恒定且平稳的温度到RF电极的远端。 加热源可以是诸如盐水的包含的液体，或诸如铁氧体，环形线圈，电阻元件等的电热物质。 从导体引导到加热源的电流在加热源中产生热量。 热电偶测量加热源的温度，并调整导体的功率以保持加热源的温度。